HOOVO 2S LiPo Battery 7.4V 450mAh 30C Battery Pack with JST Plug 2Pack
4.2Editor score
7.4V 2S1P configuration
450mAh cell capacity
30C discharge rating
Two batteries included
In this guide
A Lipo Battery Pack with Jst Plug must match the voltage, dimensions, and connector arrangement of the RC model it powers. Capacity, discharge rate, weight, charging method, and connector polarity can also determine whether a pack performs safely and reliably, making careful comparison essential before buying.
This guide compares ten JST-equipped LiPo batteries designed for different RC platforms, including micro FPV drones, helicopters, cars, trucks, boats, and compact electronics. The evaluation centers on documented voltage, cell configuration, capacity, discharge rating, dimensions, weight, and stated compatibility rather than unsupported performance claims.
Each review identifies the strongest reason to consider a particular pack while making its limitations clear. The top choices include the OVONIC for The QX7, the HOOVO as a capable two-pack option, and the Gens ace for higher-capacity 3S applications, although availability and prices can change over time.
Top 3 Picks for Best Lipo Battery Pack with Jst Plug
OVONIC 3800mAh 7.4V 2S1P TX Lipo Battery Pack with JST-SYP Plug for The QX7
4.9Editor score
7.4V 2S1P configuration
3800mAh capacity
JST-SYP power plug
10C discharge rating
Gens ace 3S 800mAh 11.1V 40C LiPo Battery Pack with JST Plug
4.7Editor score
11.1V 3S1P configuration
800mAh cell capacity
40C discharge rating
Hardcase construction
Top 10 Best Lipo Battery Pack with Jst Plug in 2026 Compared
The table below compares the ten packs by configuration, capacity, discharge rating, dimensions, and intended use, making it easier to identify the correct electrical and physical match for your RC equipment.
ProductsSpecificationsEditor scorePrice
Editor's Choice
OVONIC 3800mAh 7.4V 2S1P TX Lipo Battery Pack with JST-SYP Plug for The QX7
7.4V 2S1P configuration
3800mAh battery capacity
10C continuous discharge
71.18 x 51.96mm footprint
4.9Editor score
Editor's Choice
URGENEX 11.1V 500mAh 3S 50C JST Plug Battery Two-Pack
11.1V 3S1P configuration
500mAh battery capacity
50C continuous discharge
55.88 x 29.97mm footprint
4.6Editor score
Best Premium
Crazepony 400mAh 2S 7.4V 30C JST Plug Battery
7.4V 2S configuration
400mAh battery capacity
30C steady discharge
38.1 x 19.05mm footprint
4.5Editor score
VICMILE 1200mAh 2S 35C PH2.0 JST Battery Two-Pack
7.4V 2S configuration
1200mAh battery capacity
35C burst 70C
55 x 30mm footprint
4.6Editor score
HOOVO 450mAh 2S 30C JST Battery Two-Pack
7.4V 2S1P configuration
450mAh battery capacity
30C continuous discharge
52 x 29.5mm footprint
4.2Editor score
Blomiky 1200mAh 2S 25C JST Battery Two-Pack
7.4V 2S configuration
1200mAh battery capacity
25C burst 30C
66.6 x 30mm footprint
4.5Editor score
TATTU 450mAh 3S 45C JST Battery Two-Pack
11.1V 3S1P configuration
450mAh battery capacity
45C continuous discharge
55 x 30.5mm footprint
4.7Editor score
Gens ace 800mAh 3S 40C JST Battery Two-Pack
11.1V 3S1P configuration
800mAh battery capacity
40C continuous discharge
52 x 30mm footprint
4.7Editor score
URGENEX 900mAh 3S 50C JST Battery Two-Pack
11.1V 3S1P configuration
900mAh battery capacity
50C continuous discharge
54.86 x 29.97mm footprint
4.8Editor score
ESP32 3.7V 2000mAh JST Battery Four-Pack
3.7V single-cell configuration
2000mAh battery capacity
JST 1.25 connector
Four batteries included
4.8Editor score
1. OVONIC 3800mAh 2S1P TX – Best Overall JST Battery
OVONIC 3800mAh 7.4V 2S1P TX Lipo Battery Pack with JST-SYP Plug for The QX7
7.4V 2S1P configuration
3800mAh cell capacity
10C discharge rating
JST-SYP power connector
The OVONIC 3800mAh 7.4V 2S1P TX pack is a purpose-built option for The QX7 and stands out as the most substantial battery in this guide by capacity. Its 4.9 rating is also the highest among the listed products. The pack uses lithium polymer chemistry, a nominal 7.4-volt two-cell configuration, and a JST-SYP plug rather than a generic JST connection.
Pros
- Large 3800mAh capacity
- Purpose-built for The QX7
- Documented two-year support
- Seven-percent-rated connector arrangement
Cons
- Larger than micro packs
- Lower 10C discharge rating
- Requires compatible charger
We may earn a commission when you buy through this link, at no additional cost to you.
Capacity is the defining feature. A 3800mAh pack offers considerably more stored energy than the 400mAh, 450mAh, 500mAh, 800mAh, 900mAh, 1200mAh, and 2000mAh alternatives in the list, although actual runtime remains dependent on the model, motor demand, and operating conditions. The stated 10C discharge rating is suited to The QX7, and the product information says it is engineered for relatively high loads and swift flying situations.
There are trade-offs. The pack weighs approximately 129 grams and measures 71.18 by 51.96 by 18.17 millimeters, so it is far from a micro FPV option. Its lower 10C rating is modest compared with the 30C, 35C, 40C, 45C, and 50C packs in the comparison. OVONIC also recommends compatible Mate1, X1, and X1 Pro chargers, which could make ownership less convenient if the buyer does not already own one.
This is the strongest recommendation for a QX7 owner who values capacity, correct model targeting, and a specifically identified connector. It is less suitable for a micro drone that needs a smaller footprint or a racing setup that prioritizes a much higher stated discharge rating. Confirm the battery bay, JST-SYP plug, polarity, and charging system before purchasing.
High Capacity for Extended Flights
The 3800mAh rating gives The QX7 owner a pack with a large energy reserve. Because the pack is heavier and larger than micro alternatives, the added capacity is most valuable where there is room to accommodate it without compromising the model's intended balance.
Purpose-Built QX7 Connection
The named JST-SYP plug and The QX7 focus make this option more targeted than a general-purpose pack. The buyer should still compare connector shape, wire routing, polarity, and physical clearance rather than relying on the title alone.
We may earn a commission when you buy through this link, at no additional cost to you.
2. URGENEX 500mAh 3S 50C – Best Two-Pack Performance
URGENEX 11.1V 500mAh 3S 50C JST Plug Battery Two-Pack
11.1V 3S1P configuration
500mAh battery capacity
50C continuous discharge
JST power plug
This URGENEX set includes two 500mAh 3S batteries with an 11.1-volt nominal output, a 50C discharge rate, and JST plugs. It has a 4.6 rating and is positioned for a broad mix of RC airplanes, racing drones, helicopters, quadcopters, micro FPV aircraft, cars, trucks, and boats. The two-pack format is useful for owners who want a spare without needing to purchase two separate listings.
Pros
- High 50C discharge rating
- Two complete battery packs
- Broad RC application range
- No stated cell memory effect
Cons
- Not for 2S systems
- 48-gram pack weight
- Compatibility needs verification
We may earn a commission when you buy through this link, at no additional cost to you.
The main attraction is the combination of 50C output and 500mAh capacity. A 3S1P configuration places it in the 11.1-volt class used by many small helicopters and larger FPV aircraft, while the 50C rating gives it a stronger stated burst capability than most 2S options in this guide. The product information also states that the advanced battery design can be recycled at least 500 times and that no cell memory effect requires a full discharge before recharging.
The important limitation is that broad application language does not guarantee a fit. URGENEX explicitly says the battery will fit only when the 11.1-volt requirement, dimensions, and JST plug all match. The pack measures 2.2 by 1.18 by 0.63 inches and weighs approximately 48 grams, so model-specific bay dimensions and connector polarity should be checked before ordering.
This is a compelling pick for a 3S micro aircraft or compact RC vehicle that uses a matching JST-equipped battery bay. It is especially attractive when having two identically equipped packs simplifies rotation or backup planning. It should not be used with a 2S 7.4-volt system simply because the connector is JST, and a balance-compatible 3S charger is required.
Useful 3S Power and Rotation
The 11.1-volt 3S1P format is the central specification to verify. Two matching packs make it easier to keep an identical battery available for the same model, provided its charger, voltage, and connector requirements are suitable.
High Rated Discharge Output
A stated 50C discharge rating gives this pack more headroom for power-hungry applications than lower-rated alternatives. The rating does not change the required cell count, so the model must still accept an 11.1-volt battery.
We may earn a commission when you buy through this link, at no additional cost to you.
3. Crazepony 400mAh 2S – Best Compact Micro FPV Pack
Crazepony 400mAh 2S 30C Micro FPV Battery
7.4V 2S configuration
400mAh battery capacity
30C steady discharge
38.1 x 19.05mm footprint
The Crazepony 400mAh 2S battery is a compact 7.4-volt pack designed for micro FPV racing drones and quadcopters. It carries a 4.5 rating and is one of the lightest options here, weighing about 22 grams. Its stated dimensions of 1.5 by 0.75 by 0.75 inches make it a realistic candidate for the small battery compartments found in micro aircraft.
Pros
- Very compact dimensions
- Light 22-gram weight
- JST connector simplicity
- 30C steady-state rating
Cons
- Smallest stated capacity
- Single battery pack
- Limited model-specific guidance
We may earn a commission when you buy through this link, at no additional cost to you.
The product information identifies compatibility with examples such as the EMAX BabyHawk, Mantis 85, and DM007. A JST plug simplifies connection to suitable micro FPV drones, and the stated 30-to-60C discharge capability is presented as useful for 1104 motors. The maker also claims that the battery can increase steady-state flight duration by approximately 30 seconds under the referenced conditions.
The tradeoff is that this is the smallest-capacity pack in the comparison. A 400mAh rating is modest next to the 450mAh, 500mAh, 800mAh, 900mAh, 1,200mAh, 2,000mAh, and 3,800mAh alternatives. It also comes as a single battery rather than a two-pack. Model examples are helpful, but a title-specific fit does not replace checking the original battery's voltage, dimensions, connector, and polarity.
Micro FPV pilots who need a small, lightweight pack for a known 2S aircraft should give this option close attention. It is less appropriate for extended missions, larger models, or buyers who want matched spare batteries in one package. Confirm the battery bay and plug orientation, and use a charger suitable for 7.4-volt 2S LiPo batteries.
Small Footprint for Micro Frames
At approximately 38.1 by 19.05 millimeters in plan dimensions and 22 grams in weight, the pack is built around the space limitations of micro FPV aircraft. Accurate measurements are especially important because connector housings and wire bends can affect the usable bay size.
Targeted Racing Drone Compatibility
The listed compatibility examples give micro pilots a useful starting point, including the EMAX BabyHawk, Mantis 85, and DM007. Check the exact variant because battery compartments and connectors can differ even among models in the same family.
We may earn a commission when you buy through this link, at no additional cost to you.
4. VICMILE 1200mAh 2S – Best for Small RC Trucks
VICMILE 1200mAh 2S 35C PH2.0 JST Battery Two-Pack
7.4V 2S configuration
1200mAh battery capacity
35C burst 70C
PH2.0 JST connection
VICMILE sells this 1,200mAh 7.4-volt battery as a two-pack for SCX24-style and other small RC trucks. It has a 4.6 rating, a stated 35C continuous rating, and a 70C burst rating. The JST and PH2.0 double discharge plug arrangement is a notable feature for owners who need a specific connector form for their vehicle.
Pros
- Two 1200mAh batteries
- Continuous and burst ratings
- Broad truck compatibility
- One-year warranty stated
Cons
- 53.2 grams per pack
- Connector may require adaptation
- Large for tiny crawlers
We may earn a commission when you buy through this link, at no additional cost to you.
The product is listed as compatible with the SCX24 and WLtoys A949, A959, A969, A979, and K929, as well as many 1/10, 1/16, 1/18, and 1/24 trucks. Its 1,200mAh capacity provides more reserve than the micro drone packs in this guide, while the stated burst capability is aimed at responsive acceleration and demand from the drive system.
Vehicle fit remains conditional. VICMILE says the battery fits only if the voltage, dimensions, and plug match, and the 55 by 30 by 16-millimeter body weighs 53.2 grams per unit. That may be acceptable for a truck with a generous compartment, but it can be too large or heavy for very small models. The use of PH2.0 also means the buyer should not assume that every JST-style connector is physically interchangeable.
This pack is a strong choice for a compatible 2S RC truck owner who wants two batteries and values a stated burst rating. It is less suitable for aircraft or micro crawlers with tight weight limits. Verify the original battery's connector, polarity, bay dimensions, and the number of balance leads required by the charger.
Practical Truck Capacity
At 1,200mAh, each pack offers more energy than the 400mAh and 450mAh micro options. The larger footprint is less problematic in many truck chassis, where a practical battery bay can make weight and connector clearance more forgiving.
Connector and Polarity Verification
JST is a family of connectors rather than a single interchangeable standard. Confirm the PH2.0 housing, lead order, and polarity against the vehicle's original battery before connecting the pack.
We may earn a commission when you buy through this link, at no additional cost to you.
5. HOOVO 450mAh 2S – Best Balanced Two-Pack Option
HOOVO 450mAh 2S 30C JST Battery Two-Pack
7.4V 2S1P configuration
450mAh battery capacity
30C continuous discharge
52 x 29.5mm footprint
The HOOVO set combines two 7.4-volt, 450mAh 2S1P LiPo batteries with 30C discharge ratings and JST plugs. Its 4.2 rating is the lowest among the ten products, but the pack remains a versatile option for small helicopters, racing drones, small airplanes, and compact FPV aircraft where a 2S battery is required.
Pros
- Two matching battery packs
- Compact 30.5-gram weight
- Wide small-aircraft compatibility
- Soft-case construction
Cons
- Lowest rating in guide
- SCX24 needs adapter
- Capacity is fairly limited
We may earn a commission when you buy through this link, at no additional cost to you.
The dimensions of 52 by 29.5 by 9 millimeters and weight of approximately 30.5 grams, including the wire and plug, make it more substantial than the 400mAh Crazepony micro pack but still compact. The listing identifies the EMAX Babyhawk 250, Align T-REX 250, Blade 200 SR X, e-flite models, racing drones, small airplanes, and small FPV aircraft as possible uses, subject to matching voltage, dimensions, and plug.
The principal weakness is the 4.2 rating, which indicates less customer satisfaction than the other listed products. The pack also does not directly solve every connector problem: HOOVO states that an SCX24 requires a JST-to-PH two-pin adapter. An adapter can add another connection point, and users should confirm polarity before operation.
HOOVO is a sensible pick for a small 2S aircraft owner who wants a matched pair with a moderate 30C rating. It is less compelling for a dedicated SCX24 buyer unless the adapter is acceptable, or for a pilot who needs the greater capacity and higher output available from several alternatives. The charger must be suitable for 2S LiPo batteries.
Matched Batteries for Convenient Rotation
Two identical packs make it easier to keep a charged spare in the same class as the installed battery. Matching capacity, voltage, and connector also removes the need to troubleshoot differences between packs with different characteristics.
Broad Small-Aircraft Compatibility
The 2S1P format is common across many small helicopters, fixed-wing aircraft, and FPV drones. The listed model examples are a helpful start, but the size of the battery tray and the orientation of the JST lead remain decisive.
We may earn a commission when you buy through this link, at no additional cost to you.
6. Blomiky 1200mAh 2S – Best for RC Toy Compatibility
Blomiky 1200mAh 2S 25C JST Battery Two-Pack
7.4V 2S configuration
1200mAh battery capacity
25C burst 30C
66.6 x 30mm footprint
The Blomiky two-pack combines two 7.4-volt, 1,200mAh LiPo batteries with a red JST discharge connector. It has a 4.5 rating and is primarily marketed as a replacement for a broad collection of 1/16-scale RC trucks, construction vehicles, drones, helicopters, and boats. The set also includes a 7.4-volt 2S USB charging cable.
Pros
- Two 1200mAh packs
- Includes protected USB cable
- Extensive vehicle fit list
- Specific red JST specification
Cons
- Longest 2S footprint
- 63-gram weight
- Cable adds charging complexity
We may earn a commission when you buy through this link, at no additional cost to you.
Its compatibility list includes UDIRC UD1601 and UD1602 models, Fisca and Cheewing vehicles, Huina 1592 and 1593, YiZhan X6, JJRC H40WH, MJX X101 and X102, WLtoys V262, V333, V353B, and V666, UDI U829X, and several other models. The red JST plug is specified at a cross-section of 5.55 by 3.0 millimeters, which gives buyers a useful identification detail.
The pack is not especially compact. It measures 66.6 by 30 by 15.3 millimeters and weighs 63 grams, giving it the largest footprint among the 2S options here. The stated 25C continuous and 30C burst ratings are also lower than the VICMILE pack's ratings. Although the USB cable is protected and uses an indicator light, a separate charging arrangement may be less convenient than a standard RC balance charger.
This Blomiky set is most useful for a toy-grade RC owner who finds the exact listed model in the compatibility guide and values a ready-made replacement set. It is less attractive for competition aircraft or weight-sensitive micro models. Match the physical connector, lead order, dimensions, and charging method before ordering, particularly if the model uses a different form of JST.
Convenient USB Charging Accessory
The included 7.4-volt 2S USB cable has an integrated protection circuit and an indicator light that blinks while charging and stops when full. Users should still follow the battery maker's charging and storage guidance rather than treating the light as the only safety system.
Detailed Model Fit Information
The unusually long compatibility list is helpful when it includes the exact vehicle. It should not be treated as a blanket guarantee, so compare the original battery's voltage, dimensions, plug style, and polarity with the replacement.
We may earn a commission when you buy through this link, at no additional cost to you.
7. TATTU 450mAh 3S – Best for 3S FPV Models
TATTU 450mAh 3S 45C JST Battery Two-Pack
11.1V 3S1P configuration
450mAh battery capacity
45C continuous discharge
55 x 30.5mm footprint
TATTU's 450mAh 3S set includes two 11.1-volt batteries with JST plugs and a 45C discharge rating. The product carries a 4.7 rating, and its hardcase construction is intended to provide high power output. At 55 by 30.5 by 16 millimeters and approximately 40.5 grams per pack, it offers more cell capacity than the 400mAh micro option while remaining compact.
Pros
- High 45C discharge rating
- Two hardcase batteries
- Useful FPV model compatibility
- 18-month warranty stated
Cons
- Not compatible with 2S
- 40.5-gram pack weight
- Connector fit must be confirmed
We may earn a commission when you buy through this link, at no additional cost to you.
The stated applications include small-size FPV aircraft, the Torrent 110 and Baby Hawk, and E-flite Viking Model 12 280, Inverza 280, and Adagio 280. The 45C rating provides a substantial stated output margin relative to the 10C OVONIC pack and the 30C HOOVO option, while the 450mAh capacity remains more compact than the 800mAh and 900mAh 3S alternatives.
As with every JST-equipped battery, the connector label alone does not guarantee compatibility. The buyer needs to confirm the plug housing, polarity, wire exit direction, and battery tray dimensions. The 11.1-volt nominal output also means this set cannot be used with a 2S model. A balance charger capable of charging a 3S LiPo pack is required.
This TATTU set is a strong fit for a compatible 3S FPV aircraft that benefits from a high stated discharge rating but does not need a larger 800mAh or 900mAh pack. The two-pack format and stated 18-month warranty also make it a practical ownership choice. Buyers should confirm the aircraft's original battery specification before ordering.
High-Output 3S Balance
The pack combines 450mAh capacity with a 45C stated rating, which falls between the 40C Gens ace and 50C URGENEX options. That makes it a middle ground for 3S applications where output matters but physical bulk should remain controlled.
Two-Pack Ownership Support
TATTU states that the batteries include a 60-day money-back period and an 18-month warranty. The set also includes customer support described as available 24 hours a day, although warranty terms should be confirmed directly with the seller.
We may earn a commission when you buy through this link, at no additional cost to you.
8. Gens ace 800mAh 3S – Best for 3S Helicopters
Gens ace 800mAh 3S 40C JST Battery Two-Pack
11.1V 3S1P configuration
800mAh battery capacity
40C continuous discharge
52 x 30mm footprint
The Gens ace 800mAh 3S is a higher-capacity 11.1-volt hardcase battery with a JST plug and a 40C discharge rating. It carries a 4.7 rating and is sold as a two-pack. Compared with the 450mAh TATTU set, it trades some compactness for substantially more stored energy while maintaining a strong stated discharge rate.
Pros
- High 800mAh capacity
- Two hardcase packs
- 200-to-250 class applications
- 18-month warranty stated
Cons
- Heaviest compact 3S option
- Larger than 450mAh packs
- Not for 2S equipment
We may earn a commission when you buy through this link, at no additional cost to you.
Gens ace specifically lists the Align T-REX 250, Blade 200 SR X, 230s, E-flite Blade CP and CP Pro, and 800mm warbirds among its applications. These examples make the pack appear more oriented toward 200- to 250-class helicopters and larger fixed-wing models than toward the smallest racing drones. The 52 by 30 by 23-millimeter dimensions and 72-gram weight reflect its larger physical design.
That weight and size are meaningful trade-offs. A model designed around a 450mAh 2S or 3S pack may not have enough room or may not be able to sustain the added mass, while the 11.1-volt output is entirely unsuitable for 2S equipment. The JST designation also needs verification against the original connector and lead arrangement.
This is the recommendation for a compatible 3S helicopter or larger RC aircraft that benefits from an 800mAh reserve and a hardcase pack. The stated 60-day money-back and 18-month warranty add ownership reassurance, subject to the seller's current terms. Measure the available bay and check the model's electrical requirements before purchase.
More Energy for 3S Helicopters
The 800mAh rating gives this pack more capacity than the 450mAh, 500mAh, and 400mAh 3S or 2S alternatives without moving into the much larger 3,800mAh QX7 pack. It is a useful middle ground for models that need more runtime than a small pack can provide.
Hardcase for Demanding Models
The hardcase design is aimed at applications where the product information says high power and extended run time are desired. It is especially relevant to 200- and 250-class helicopters, although the battery must still fit securely without adding excessive mass.
We may earn a commission when you buy through this link, at no additional cost to you.
9. URGENEX 900mAh 3S – Best High-Capacity 3S Output
URGENEX 900mAh 3S 50C JST Battery Two-Pack
11.1V 3S1P configuration
900mAh battery capacity
50C continuous discharge
54.86 x 29.97mm footprint
This URGENEX set provides two 11.1-volt, 900mAh 3S1P batteries with 50C discharge ratings and JST plugs. Its 4.8 rating is tied for the second-highest score in the guide, just behind the OVONIC pack. It combines a higher capacity than the 500mAh URGENEX set with the same stated 50C output rating.
Pros
- Excellent 4.8 customer rating
- 900mAh and 50C combination
- Two complete battery packs
- Wide RC platform coverage
Cons
- 80-gram weight
- Not suitable for 2S models
- Exact fit requires checking
We may earn a commission when you buy through this link, at no additional cost to you.
The product information targets RC airplanes, racing drones, helicopters, quadcopters, micro FPV aircraft, cars, trucks, and boats. Its 900mAh capacity can offer a larger energy reserve than the 450mAh TATTU and 500mAh URGENEX options, while the 50C rating is tied for the highest continuous discharge figure among the products listed.
The physical compromises are weight and size. Each pack weighs approximately 80 grams and measures 2.16 by 1.18 by 0.93 inches, making it noticeably heavier than the 450mAh 3S pack. The broad model list is descriptive rather than a guarantee; URGENEX states that the voltage, dimensions, and JST plug must match. Buyers should also verify connector polarity and charger lead compatibility.
This is a compelling choice for a larger compatible 3S aircraft or RC vehicle that benefits from both high output and higher capacity. It is less attractive for micro models where the 80-gram pack would be excessive. With a 3S balance charger, careful fit checks, and sensible storage practices, the set offers a strong combination of documented specifications and customer rating.
Capacity and Output Combined
The 900mAh capacity gives this pack more reserve than the other 3S options except none in this group, while the 50C rating matches the highest figure in the guide. It is well suited to buyers who prioritize both energy storage and stated discharge capability.
Weight Matters in Flight
An 80-gram battery can materially affect a small model's flight time and handling. For larger aircraft, that weight may be a reasonable part of the power system; for a micro FPV frame, a lighter 400mAh or 450mAh pack is normally more appropriate.
We may earn a commission when you buy through this link, at no additional cost to you.
10. ESP32 2000mAh JST – Best for Electronics Projects
ESP32 3.7V 2000mAh JST Battery Four-Pack
3.7V single-cell configuration
2000mAh battery capacity
JST 1.25 connector
Four batteries included
The four-pack of 3.7-volt, 2,000mAh lithium polymer batteries is designed primarily for ESP32 development boards, Mesh Node T114, and other compact low-power electronics. It has a 4.8 rating and uses a JST 1.25 plug, with the product information specifically referencing SH1.25-2-style connections on compatible boards.
Pros
- Four matching battery packs
- High single-cell capacity
- Built-in protection mechanisms
- ESP32 and IoT compatibility
Cons
- Not an RC 2S battery
- JST 1.25 connector only
- Requires suitable LiPo charger
We may earn a commission when you buy through this link, at no additional cost to you.
Unlike the nine RC-focused packs, this is a one-cell battery with a protection board. The protection is stated to stop charging when voltage reaches 4.2 volts and to turn off below 3.0 volts, helping guard against overcharge and deep discharge. The battery is also described as meeting UN 38.3 safety standards, and the inclusion of four matching cells is useful for prototypes, parallel projects, or keeping spares available.
This product is not interchangeable with a conventional 7.4-volt 2S RC battery. Its 3.7-volt nominal output, single-cell charging profile, and much smaller JST 1.25 connector serve a different category of electronics. The instructions also caution against reverse charging, recommend storage at 3.7 to 3.9 volts and between minus 20 and 45 degrees Celsius, and advise recharging every three months during extended storage.
For an ESP32 or IoT developer, this is the clear specialist choice in the guide. It provides the largest capacity in a one-cell package, four units for project flexibility, and documented protection features. It should not be selected for an RC aircraft or truck that expects a 2S, 3S, or larger multi-cell pack.
Built-In Protection Circuit
The protection board is designed to terminate charging at 4.2 volts and shut down below 3.0 volts. These safeguards add useful layers, although correct polarity and a compatible charger remain essential and no protection system makes misuse safe.
Purpose-Built for ESP32 Projects
The JST 1.25 plug and stated support for ESP32 boards make the pack more appropriate for embedded electronics than for general RC use. Check the board's connector type and charging requirements, especially when the product title does not itself state the connector specification.
We may earn a commission when you buy through this link, at no additional cost to you.
Buying Guide – How to Choose the Best Lipo Battery Pack with Jst Plug
Choosing a JST-equipped LiPo battery starts with an exact electrical and physical match, followed by consideration of capacity, output, weight, charging method, and the specific model being powered. The connector is only one part of compatibility.
Cell Count and Nominal Voltage
The cell count and nominal voltage determine whether the battery can safely power the equipment. A 2S LiPo pack has a nominal voltage of 7.4 volts and normally reaches 8.4 volts when fully charged, while a 3S pack has a nominal 11.1-volt rating and reaches 12.6 volts. The single-cell ESP32 pack is nominal 3.7 volts. A battery with a different cell count may fit physically and still cause the receiver, ESC, or motor system to receive an unsuitable voltage.
Battery Capacity
Capacity is measured in milliampere-hours and indicates how much charge the battery stores. Higher capacity generally provides a larger energy reserve, but it also tends to increase weight and physical size. The guide includes packs ranging from 400mAh for micro aircraft to 3,800mAh for The QX7, plus a 2,000mAh single-cell pack for ESP32 projects. Actual runtime depends on the device's current draw, motor efficiency, throttle use, and flight or operating conditions, so capacity is not a direct promise of a specific duration.
Discharge and Burst Ratings
The discharge rating indicates the current a battery is designed to deliver. The packs in this guide are rated from 10C to 50C, with the VICMILE option listing 35C continuous and 70C burst performance. A higher rating can help when a motor or vehicle draws a heavy current, especially during acceleration. It does not make an undersized pack physically appropriate, and it does not override the need to use the voltage and connector specified by the manufacturer.
JST Connector Type and Polarity
JST is a connector family, and not every JST plug is physically or electrically interchangeable. The options here include a JST-SYP arrangement, a PH2.0 plug, a red JST connector with a specified 5.55 by 3.0-millimeter cross-section, and a JST 1.25 connector for ESP32 boards. Check housing dimensions, the number of pins, the position of the red lead, and the receiver's polarity before inserting a replacement. Forcing or rewiring a mismatched plug can damage the battery, ESC, receiver, or charging equipment.
Dimensions and Weight
The pack must fit the battery bay without being pinched, obstructed, or positioned where its wires can interfere with moving parts. Measurements in this guide range from the Crazepony micro pack at approximately 1.5 by 0.75 by 0.75 inches to the OVONIC pack at about 2.8 by 2.05 by 0.72 inches. Weight also matters in aircraft because every added gram can affect flight characteristics. Ground vehicles may tolerate more mass, but dense packs can still affect balance or compartment clearance.
Charger and Connector Compatibility
The charger must support the pack's cell count and chemistry. A 2S 7.4-volt battery needs a 2S LiPo balance charger, a 3S 11.1-volt battery needs a 3S charger, and the ESP32 pack requires a suitable single-cell LiPo charger. The connector on the battery may not be the same type as the charger's output lead, and some RC packs are balanced through separate balance wires. The OVONIC information specifically recommends OVONIC Mate1, X1, and X1 Pro chargers.
Model-Specific Compatibility
A product title that names a vehicle, aircraft, or board can simplify the search, but compatibility still depends on the exact battery specification. The products here reference models such as The QX7, SCX24, EMAX BabyHawk, Mantis 85, DM007, Align T-REX 250, Blade 200 SR X, ESP32, and WLtoys trucks. Buyers should use those references as a starting point and compare the original battery's voltage, capacity class, dimensions, connector, and polarity.
Construction, Cycle Life, and Support
Hardcase construction may be desirable for models where impact resistance matters, while soft-case packs can be lighter and fit narrow compartments. Several products state a cycle life of at least 500 cycles, while TATTU and Gens ace state an 18-month warranty, VICMILE states one year, and OVONIC describes support for warranty inquiries within two years. These are manufacturer-stated claims and should be confirmed with the seller, along with the terms for physical damage, misuse, and normal capacity reduction over time.
How to Use and Care for Your Lipo Battery Pack with Jst Plug
Before first use, verify that the battery's cell count, nominal voltage, connector, and polarity match the device. Inspect the pack, wires, and plug for physical damage, and confirm that the connector can be inserted without forcing it. Use a charger designed for the pack's LiPo chemistry and cell count, observe the correct balance-lead arrangement where applicable, and never leave charging unattended around combustible materials.
Connect the battery with the equipment switched off, and use the correct balance lead. Do not overcharge beyond 4.2 volts per cell, over-discharge the pack, reverse the polarity, short its terminals, or puncture the soft case. Retire any battery that becomes swollen, unusually hot, dented, leaking, or physically damaged, and do not attempt to use a damaged JST plug or modify the battery's chemistry and protection system.
For storage, keep the battery at the recommended charge level in a cool, dry place away from heat, direct sunlight, and moisture. The ESP32 product's guidance specifically recommends 3.7 to 3.9 volts, minus 20 to 45 degrees Celsius, and 40 to 80 percent capacity for extended storage, with a recharge every three months. RC batteries should likewise be stored safely and inspected before every use, with damaged or unusually aged packs replaced rather than trusted based solely on a printed rating.
Frequently Asked Questions
Are all JST plugs interchangeable with RC batteries?
No. JST is a family of connector standards that includes different housings, pin counts, and dimensions. The JST-SYP, PH2.0, 5.55 by 3.0-millimeter JST, and JST 1.25 options in this guide serve different applications. Check the connector shape, pin count, lead order, and polarity before connecting a pack.
Can I use a 3S battery in a 2S RC model?
Usually not. A 3S battery has a nominal voltage of 11.1 volts and charges to 12.6 volts, while a 2S system normally uses a 7.4-volt pack that charges to 8.4 volts. Using the wrong cell count can damage the ESC, receiver, or electronics, so follow the voltage specified by the equipment manufacturer.
What does a 50C discharge rating mean?
A 50C rating is a stated maximum discharge capability relative to the battery's nominal capacity. It indicates that the pack is designed for high current output and can be useful for demanding motors or vehicles. It does not guarantee a particular flight time, and it does not make the battery compatible with a model that has different voltage, size, or connector requirements.
How many LiPo batteries do I need?
One matched battery is enough for basic operation, but a two-pack makes rotation and backup planning easier. Four-pack sets, such as the ESP32 option, are particularly useful for development work and prototypes. Match every pack's cell count, capacity, discharge class, connector, and polarity when rotating batteries.
Can I charge these batteries with a USB cable?
Only when the cable and charging setup are explicitly designed for the pack's cell count and voltage. The Blomiky set includes a protected 7.4-volt 2S USB cable, while the ESP32 batteries require a suitable single-cell LiPo charger. A basic five-volt USB cable does not safely charge a multi-cell RC LiPo pack.
How should I store a LiPo battery for long periods?
Store the pack in a cool, dry, fire-resistant location away from direct sunlight and combustible materials, at the manufacturer's recommended charge level. The ESP32 product guidance calls for 3.7 to 3.9 volts, minus 20 to 45 degrees Celsius, and 40 to 80 percent capacity during extended storage. Inspect the battery periodically and replace it if it is damaged or swollen.
What should I do if a LiPo battery becomes swollen?
Stop using the battery immediately and disconnect it only if it can be done safely without damaging or puncturing the cell. Move people away from the pack and place it in a nonflammable, ventilated area or use an appropriate LiPo-safe containment method. Do not charge, fly, or reinstall a swollen battery, and dispose of it according to local lithium-battery rules.
How do I know whether a JST battery will physically fit?
Compare the replacement pack's length, width, and height with the original battery and available compartment. Also check the plug housing, wire exit direction, clearance around the connector, and whether the model requires a specific lead arrangement. Model names in a listing are helpful, but measurements provide the most reliable physical confirmation.
Final Thoughts on Choosing the Best Lipo Battery Pack with Jst Plug
The OVONIC 3800mAh 2S1P pack is the strongest overall recommendation for The QX7 because it combines the guide's highest rating with exceptional capacity and a model-specific JST-SYP connection. The HOOVO 450mAh two-pack is a practical budget-oriented choice for small 2S aircraft, while the Gens ace 800mAh 3S set stands out for compatible 200- and 250-class helicopters and higher-capacity 3S use.
For other needs, prioritize exact fit before comparing discharge ratings or capacity. The Crazepony 400mAh pack fits the micro FPV category, the TATTU and URGENEX 450mAh and 500mAh sets target smaller 3S aircraft, and the VICMILE and Blomiky 1,200mAh packs serve small RC trucks. The ESP32 four-pack is deliberately different, offering a protected single-cell option for compact electronics rather than RC models.
Always verify the current cell count, voltage, connector family, polarity, dimensions, charger compatibility, and seller terms before purchasing. Prices and promotions change, so compare current offers and prioritize a complete, correctly equipped pack over headline specifications alone.