Choosing the right RC LiPo battery is less about finding the highest C rating and more about matching voltage, size, connector, and fit. A battery that suits your model can improve runtime, responsiveness, and charging convenience.
These 10 options cover compact 1S, 2S, and 3S packs for micro drones, crawlers, aircraft, boats, and other small RC vehicles. Use the guide below to narrow the list by compatibility and intended use.
Best 10 Rc Lipo Batteries Under 300 Picks for 2026
Micro FPV Pick
- Four-pack of 7.4V 2S batteries
- 45C discharge rating and XT30 plug
- Compact 20g design for micro models
Best For: Compatible micro FPV quads and lightweight aircraft
High-Output FPV Pick
- 11.4V HV 3S configuration
- 80C discharge and 160C burst ratings
- XT30 connector with 18AWG wire
Best For: Compatible FPV racing drones
Compact Replacement Pick
HAWK'S WORK 300mAh 3.7V LiPo Batteries
- Two-pack of rechargeable 3.7V batteries
- XH2.54 connector and compact dimensions
- Protection IC and USB charging cable included
Best For: Compatible small 3.7V RC models and toys
Multi-Battery Value Pick
Blomiky 4-Pack 300mAh MX2.0 LiPo Batteries
- Four 3.7V 300mAh batteries included
- Four-port charging board included
- 25C discharge rate with MX2.0 plugs
Best For: Compatible small RC models needing several spare batteries
UMX 2S Power Pick
URGENEX 7.4V 320mAh LiPo Battery Set
- Two 7.4V 2S1P batteries included
- 35C discharge rate and PH2.0-3PIN plug
- Designed for compatible UMX 2S airplanes
Best For: UMX 2S aircraft requiring a 7.4V replacement pack
Compact 2S FPV Pick
- 7.6V, 300mAh, 75C 2S pack
- Compact 15.5g design
- JST-PHR connector
Best For: Small-size FPV models with matching connector and battery space
Multi-Pack 1S Value
- Five 1S batteries included
- 3.8V, 300mAh, 80C specification
- BT2.0 connector and compact size
Best For: Small compatible models needing multiple 1S flight batteries
High-Rate 2S Twin Pack
- Two compact 2S batteries
- 7.6V, 300mAh, 80C specification
- JST plug for compatible models
Best For: Small 2S RC or FPV models requiring a JST-connected battery
Micro FPV Pick – TATTU 2S 300mAh XT30 LiPo
For shoppers comparing rc lipo batteries under 300, this four-pack pairs a compact 7.4V 2S configuration with a 45C discharge rate and an XT30 connector. Its listed 46 × 16 × 14 mm size is intended for compatible micro FPV models and lightweight aircraft.
Best For: Emax Babyhawk-size micro FPV quads and compatible UMX or lightweight F5J aircraft.
Pros:
- Four rechargeable 300mAh packs included.
- 45C discharge rating for responsive model power.
- Compact 20g design with an XT30 plug.
- Includes a 60-day money-back guarantee and 18-month warranty.
Cons:
- Only suitable for models matching the 7.4V voltage, XT30 plug, and dimensions.
- The 300mAh capacity is aimed at small models rather than extended runtime.
This is a practical multi-pack for pilots who need lightweight replacement batteries for compatible micro FPV equipment. Confirm the connector and battery bay dimensions before ordering.
Versatile Mini RC Pick – URGENEX 2S 300mAh Dual-Plug
This URGENEX pack is a flexible option among rc lipo batteries under 300, offering 7.4V 2S power, a 60C discharge rating, and both JST and PH2.0 plugs. The 48.8 × 18.4 × 9.7 mm size is designed for compatible small RC vehicles and other models.
Best For: SCX24 and compatible WLtoys or other small RC cars, trucks, airplanes, and drones.
Pros:
- 60C discharge rating with a stated 120C burst rating.
- JST and PH2.0 dual discharge plugs improve compatibility.
- Two rechargeable batteries, manual, and storage box included.
- Backed by a one-year warranty.
Cons:
- Fit depends on matching voltage, plug type, and battery dimensions.
- The two-pack has a smaller quantity than some four-pack alternatives.
Its dual-connector setup makes this a useful replacement choice when a compatible mini RC model uses either listed plug. Verify polarity, clearance, and charging requirements before use.
High-Output FPV Pick – GAONENG 3S 300mAh HV LiPo
For FPV users searching rc lipo batteries under 300, this 11.4V high-voltage 3S pack emphasizes output with an 80C discharge rating and 160C burst rating. It uses an XT30 connector and measures approximately 53 × 17 × 15.5 mm.
Best For: Compatible FPV racing drones, including models using the Betafpv 75x battery specification.
Pros:
- 80C continuous and 160C burst discharge ratings.
- 11.4V HV 3S configuration for compatible FPV racing drones.
- XT30 connector with 18AWG silicone wire.
- Lightweight 28.93g construction for its listed capacity.
Cons:
- 3S 11.4V output is not interchangeable with 2S or standard 3.7V models.
- Compatibility requires matching the XT30 connector and dimensions.
- The supplied notes list a two-battery count, so verify the package contents.
This battery is suited to demanding, compatible FPV setups where a high discharge specification matters. Carefully follow the manufacturer’s usage guidance and confirm that the model supports HV 3S charging.
Replacement Pack Pick – Blomiky 3.7V 300mAh MX2.0
This three-pack is a straightforward choice for rc lipo batteries under 300 when a small model requires a single-cell 3.7V battery with an MX2.0 2P plug. Each pack weighs about 9g and measures approximately 33.4 × 20.5 × 8.1 mm.
Best For: Compatible 1/18-scale RC Shark trucks, small RC cars, quadcopters, helicopters, and aircraft.
Pros:
- Three rechargeable 3.7V 300mAh batteries included.
- Lightweight 9g packs suit small RC models.
- MX2.0 2P connector supports listed replacement applications.
- Listed compatibility includes several UDI, Coodoo, and other small RC models.
Cons:
- Single-cell 3.7V output is unsuitable for models requiring 7.4V or higher.
- Fit depends on matching the MX2.0 plug and compact dimensions.
For owners of small RC vehicles or aircraft using the specified MX2.0 connection, this three-pack provides convenient replacement capacity. Match the original battery’s voltage, connector, polarity, and physical size before buying.
Compact Replacement Pick – HAWK'S WORK 300mAh 3.7V LiPo Batteries
For shoppers seeking RC lipo batteries under 300, this two-pack is a compact 3.7V option for compatible small RC models and toys. Its 300mAh capacity, lightweight design, and XH2.54 connector make compatibility checks especially important before ordering.
Best For: Small 3.7V RC planes, helicopters, drones, boats, trucks, and toys that use an XH2.54 connector.
Pros:
- Two rechargeable 300mAh batteries are included.
- Compact 33 × 20 × 6 mm size and approximately 9g weight.
- Built-in protection IC and included USB charging cable.
Cons:
- Limited to 3.7V systems and a specific XH2.54 connector.
- 300mAh capacity may provide less runtime than larger packs.
- Buyers must verify size, weight, plug, and voltage before purchase.
This is a practical replacement set for compatible lightweight RC equipment. Confirm the connector and battery compartment dimensions first, since those specifications determine whether it will fit.
Multi-Battery Value Pick – Blomiky 4-Pack 300mAh MX2.0 LiPo Batteries
Among RC lipo batteries under 300, this Blomiky set stands out for its four-battery bundle and included four-port charging board. Each 3.7V, 300mAh pack uses an MX2.0 plug and is intended for select small RC aircraft, boats, drones, trucks, and cars.
Best For: Owners of compatible RC models using 3.7V 300mAh MX2.0 batteries who want multiple replacements and simultaneous charging.
Pros:
- Four rechargeable batteries are included in the package.
- Four-channel board can charge all four batteries at the same time.
- 25C discharge rate and approximately 7.8g weight per battery.
Cons:
- Compatibility is limited to devices using the MX2.0 plug.
- These are 3.7V batteries, so they are not replacements for 7.4V systems.
- Model fit varies, so the listed dimensions and connector should be checked.
The four-pack is convenient for extended flying or driving sessions because spare batteries are ready when one runs down. Its strongest advantage is the included multi-port charger, provided your equipment matches the MX2.0 specification.
UMX 2S Power Pick – URGENEX 7.4V 320mAh LiPo Battery Set
If your search for RC lipo batteries under 300 includes compact 2S aircraft packs, this URGENEX set offers 7.4V output and 320mAh capacity. It is designed for compatible UMX 2S airplanes and uses a PH2.0-3PIN plug, so voltage, dimensions, and connector must all match.
Best For: Compatible UMX 2S airplanes and other RC models requiring a 7.4V 320mAh pack with a PH2.0-3PIN connector.
Pros:
- Two 7.4V 2S1P batteries are included.
- 35C discharge rate is specified for responsive RC operation.
- Compact 1.65 × 0.75 × 0.47-inch design with a stated one-year warranty.
Cons:
- Not suitable for 3.7V single-cell systems.
- Fit depends on matching the PH2.0-3PIN plug and battery dimensions.
- At 320mAh, it is slightly above the stated under-300 keyword target.
This set is the appropriate choice when a compatible model calls for a 2S 7.4V battery rather than a single-cell pack. Check the aircraft specification carefully before buying, especially the three-pin connector and available space.
Compact 2S FPV Pick – TATTU 300mAh 2S JST-PHR
TATTU 2S Lipo Battery 300mAh 7.6V 75C 2S1P Lipo Battery Pack with JST-PHR Plug
Check Price On AmazonFor shoppers comparing rc lipo batteries under 300, this TATTU pack offers a compact 2S setup with a 7.6V rating, 300mAh capacity, and 75C discharge rating. Its JST-PHR connector and small dimensions make connector compatibility and available space key checks before buying.
Best For: Small-size FPV models such as the EMAX Tinyhawk S (PH2) and Sailfly X (XT30), provided the connector and battery bay match.
Pros:
- 2S 7.6V configuration with a 75C discharge rating.
- Compact 44.31 × 15.37 × 11.7mm size and approximately 15.5g weight.
- Rechargeable pack supplied with a JST-PHR connector.
Cons:
- Only suitable for models that accept its JST-PHR connection or an appropriate compatible setup.
- Its 300mAh capacity is intended for small models rather than larger RC vehicles.
This is a focused choice for lightweight FPV builds needing a compact 2S battery. Verify the connector, dimensions, and voltage requirements before ordering.
Multi-Pack 1S Value – OVONIC 300mAh 1S BT2.0 5-Pack
Among rc lipo batteries under 300, this OVONIC option stands out as a five-battery 1S bundle. Each 300mAh pack uses a BT2.0 plug, 3.8V nominal voltage, and 80C discharge rating, making connector fit and charger compatibility important considerations.
Best For: RC users who need several compact 1S batteries for compatible small aircraft or other models using a BT2.0 connection.
Pros:
- Five batteries are included in the package.
- 80C discharge rating is specified for demanding loads and quick flying scenarios.
- Compact 64 × 10.4 × 6.5mm dimensions and approximately 8g per battery.
Cons:
- Designed for 1S systems, so it is not a direct replacement for 2S batteries.
- Requires a model compatible with the BT2.0 plug.
- Charging must stop when the cell reaches 4.2V; a compatible charger is recommended.
This five-pack is practical for pilots who prefer spare batteries ready for repeated sessions. Confirm your model uses BT2.0 and follow the stated 3.8–4.2V cell range when charging.
High-Rate 2S Twin Pack – OVONIC 300mAh 2S JST 2-Pack
OVONIC 7.6V 80C 300mAh 2S Lipo Battery with JST Plug[1 Package Including 2 Batteries]
Check Price On AmazonThis OVONIC twin pack is a useful option for shoppers comparing rc lipo batteries under 300 who need a 2S battery with a higher 80C discharge rating. It includes two 300mAh packs with a JST plug, 7.6V listing, and compact dimensions for compatible small RC models.
Best For: Small RC aircraft and FPV setups that require a 2S battery, JST connection, and compact 47.28 × 15.72 × 11.53mm format.
Pros:
- Two batteries are included in the package.
- 2S configuration with 300mAh capacity and an 80C discharge rating.
- Approximately 15g per battery with a compact form factor.
Cons:
- Compatibility depends on the model accepting its JST plug and dimensions.
- Not suitable as a direct replacement for 1S systems.
- Charging requires attention to the stated 3.7–4.2V per-cell range.
Choose this pack when you want two compact 2S batteries and the stronger stated discharge rating of 80C. Check the connector, battery compartment, and voltage requirements before purchase.
How We Picked the Best Rc Lipo Batteries Under 300
We focused on 300mAh-class packs and closely related compact options, comparing cell count, nominal voltage, discharge rating, connector type, pack quantity, and stated vehicle compatibility. Because RC battery fit is highly model-specific, connector and voltage matching received more weight than headline C ratings alone.
We also considered practical value. Multipacks can reduce replacement costs for frequent flyers and drivers, while single or small two-pack bundles may be preferable when you need a precise replacement. Always confirm the manufacturer’s specifications before ordering.
Quick Comparison
| Battery type | Typical use | What to check |
|---|---|---|
| 1S, 3.7–3.8V | Micro drones, toys, compact aircraft | Plug, dimensions, polarity, and high-voltage charging support |
| 2S, 7.4–7.6V | Micro FPV drones, crawlers, planes | Balance connector, discharge lead, tray clearance, and charger mode |
| 3S, about 11.1–11.4V | Higher-performance micro FPV models | Exact model compatibility, current capability, and HV support |
Key Buying Factors for Rc Lipo Batteries Under 300
Voltage and Cell Count
Match the battery’s cell count to the vehicle and electronic speed controller. A 1S pack is not interchangeable with a 2S pack, and a 3S battery can damage equipment designed for lower voltage. Packs labeled 7.6V or 11.4V are generally high-voltage LiPos and require a compatible charger setting.
Connector and Polarity
XT30, JST, PH2.0, BT2.0, MX2.0, XH2.54, and JST-PHR plugs are not automatically interchangeable. Check both the main discharge plug and any balance connector, then verify polarity before connecting. Adapters may add resistance, bulk, or a weak connection.
Dimensions, C Rating, and Runtime
Confirm length, width, height, and lead placement against the battery compartment. A higher C rating may support stronger current delivery, but it does not guarantee longer runtime. Capacity, vehicle load, throttle use, and battery condition have greater impact on flight or driving time.
Charging and Safety
Use a LiPo charger with the correct cell count and balance function. Never charge a swollen, punctured, hot, or damaged pack. Charge on a nonflammable surface, remain present while charging, and store batteries at the charger’s recommended storage voltage.
Who Should Buy Which Rc Lipo Batteries Under 300?
- Micro FPV pilots: Look first at the correct 1S, 2S, or 3S voltage and connector; packs made for Babyhawk, Betafpv, or similar models are the most convenient starting points.
- SCX24 and small crawler owners: Prioritize the specified dual-plug arrangement, physical fit, and discharge capability over maximum advertised C ratings.
- RC aircraft and helicopter users: Verify the model’s plug, battery bay dimensions, and whether the aircraft accepts standard or high-voltage LiPos.
- Frequent users: Multipacks from TATTU, Blomiky, or OVONIC can provide practical rotation and backup value when every pack has the correct specifications.
Before buying, compare the exact connector, polarity, dimensions, and charger requirements with your vehicle manual. Those details matter more than brand or price alone.