Introduction
If you’re into RC cars, trucks, or drones,you already know that the battery is one of the most important components. A RC lipo battery can make the difference between a sluggish ride and a high-speed performance machine.
At A&S Power, we manufacture custom lithium polymer batteries for OEM buyers worldwide. This guide covers everything you need to know about RC lipo batteries – from voltage and C-rating to capacity and charging.
For a complete overview of our custom battery capabilities, check out our full guide: [Custom Lithium Polymer Battery – OEM/ODM Solutions for IoT, Wearables & Medical Devices] .
If you’re new to lipo batteries, start with our [Lipo Battery 101] guide for the basics.
What is an RC Lipo Battery?
A RC lipo battery is a lithium polymer battery designed specifically for radio-controlled vehicles and devices. These batteries deliver high power output in a lightweight, compact package – perfect for RC applications.
Key specifications for RC lipo batteries:
| Specification | Typical Range |
|---|---|
| Voltage | 3.7V (1S) to 22.2V (6S) |
| Capacity | 500mAh – 6,000mAh |
| Discharge Rate (C-rating) | 20C – 100C+ |
| Connector Types | XT60, Deans, EC3, JST, TRX |
| Weight | 50g – 600g depending on capacity |
For more information on different cell counts, check out our guides on [2S Lipo Battery] , [3S Lipo Battery] , [4S Lipo Battery] , and [6S Lipo Battery] .
RC Lipo Battery Voltage Guide
| Battery Type | Voltage | Best For |
|---|---|---|
| 1S (3.7V) | 3.7V | Small RC cars, micro drones |
| 2S (7.4V) | 7.4V | Entry-level RC cars, small drones |
| 3S (11.1V) | 11.1V | Mid-sized RC cars, racing drones |
| 4S (14.8V) | 14.8V | Large RC cars, racing drones |
| 6S (22.2V) | 22.2V | Professional racing, large RC vehicles |
Quick tip: Higher voltage = more speed and power, but also more weight and shorter runtime.
RC Lipo Battery C-Rating Explained
The C-rating (discharge rate) tells you how much current the battery can safely deliver. Higher C-rating = more power, but also higher cost and weight.
| C-Rating | Power Level | Best For |
|---|---|---|
| 20C-30C | Low-Moderate | Casual RC cars, entry-level |
| 30C-50C | Moderate | Mid-range RC cars and trucks |
| 50C-70C | High | Racing drones, performance RC cars |
| 70C-100C+ | Very High | Professional racing, high-performance drones |
How to calculate continuous current:
Capacity (mAh) × C-rating = Max Continuous Current (A)
Example: A 2,200mAh 50C battery can deliver 110A continuously (2.2 × 50).
How to Choose the Right RC Lipo Battery
1. Check your device requirements
Your RC car or drone will specify voltage, capacity, and C-rating requirements. Follow these recommendations.
2. Choose the right voltage
Higher voltage = more speed, but also heavier and more expensive. Match your device’s specifications.
3. Select the right capacity
Higher mAh = longer runtime, but also heavier. Balance runtime with handling requirements.
4. Pick the right C-rating
Higher C-rating = more power, but also higher cost. Choose based on your performance needs.
5. Check connector compatibility
Ensure the battery connector matches your device. Common RC connectors: XT60, Deans, EC3, JST, TRX.
How to Charge Your RC Lipo Battery Safely
What you need:
-
Lipo balance charger (supports your battery’s cell count)
-
Correct balance lead connection
-
Fire-safe charging bag
-
Correct connectors
Step-by-step:
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Connect the main power leads to the charger
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Connect the balance lead to the charger’s balance port
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Set charger to the correct cell count (2S, 3S, 4S, etc.)
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Set charging current to 1C (e.g., 2.2A for a 2,200mAh battery)
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Start charging and monitor the process
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Disconnect when the charger shows “Complete”
⚠️ Never charge an RC lipo battery without balance charging – uneven cell charging creates fire hazards. Always use a fire-safe bag and never leave batteries unattended.
For detailed charging instructions, see our [How to Charge Lipo Batteries] guide.
Frequently Asked Questions
1. How long does an RC lipo battery last?
Under normal use, an RC lipo battery lasts 300-500 cycles (2-3 years of regular RC use).
2. What voltage should I store my RC lipo battery at?
Store at 3.8V per cell (storage mode) in a cool, dry place.
3. Can I use a lipo battery in any RC car?
Only if the voltage matches. Check your ESC (Electronic Speed Controller) specifications before using a different battery.
4. Why is my RC lipo battery swollen?
Swelling indicates internal damage, overcharging, overheating, or over-discharging. Stop using it immediately and dispose of it properly.
5. How do I dispose of an old RC lipo battery?
Dispose of lipo batteries at designated battery recycling centers. Do not throw them in regular trash.
6. Do I need a special charger for RC lipo batteries?
Yes. Only use chargers specifically designed for lipo batteries. Regular chargers can damage the battery or create fire risks.
Custom RC Lipo Battery Solutions from A&S Power
At A&S Power, we manufacture custom lithium polymer batteries for OEM buyers across multiple industries. From RC cars and drones to medical devices and wearables, we deliver tailored solutions with safety and performance in mind.
✅ Custom dimensions and capacities
✅ OEM labeling and packaging
✅ UL, CE, RoHS, and UN38.3 certification
✅ Engineering support from concept to production
📄 Request a Technical Datasheet – Contact Us
📞 Speak with Our Engineering Team – Get In Touch
🔗 Browse Our Custom Battery Solutions – View Products
Dongguan A&S Power Technology Co., Limited.
Building 1, No. 2, Keji 9th Road, Songshan Lake, Dongguan, Guangdong, China
📞 +86 137 1383 1631 | ✉ info@enerbe.net