What type of battery does an RC plane use?

By Ufine, Updated on July 11, 2025

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If you’re getting into the RC (radio-controlled) plane hobby, you’re probably wondering: what battery does an RC plane use? This is a key question. The type of battery you use has a direct impact on flight time, power, speed, and safety. So, let’s break it down and explore everything about RC plane batteries in a simple and practical way.

Part 1. How does the battery affect the performance of the RC plane?

The battery is like the fuel tank for your RC plane. But unlike fuel, it also affects how much power your plane can deliver.

Here’s how it affects performance:

Flight Time: A higher capacity battery means longer flying.
Power Output: More voltage means more thrust and faster speed.
Weight: Bigger batteries weigh more. If it’s too heavy, your plane might struggle to fly.
Balance: Batteries also help balance the aircraft. A wrong-sized battery can mess up your plane’s center of gravity.

In short, the RC plane battery needs to match your aircraft’s size and power system to get the best performance.

Part 2. RC plane battery main parameters

When buying a battery for your RC plane, you’ll see a bunch of numbers. Here’s what they mean:

Voltage (V)

Measured in volts. Most RC planes use 1S, 2S, 3S, or 4S LiPo batteries:

1S = 3.7V
2S = 7.4V
3S = 11.1V
4S = 14.8V

More cells (S) = more power.

Capacity (mAh)

This is how much energy the battery stores. More mAh means longer flights.

C Rating (Discharge Rate)

This tells you how fast the battery can deliver power. A higher C rating gives more punch but drains faster.

Size & Weight

It must fit your plane’s battery compartment and not be too heavy.

Connector Type

The plug on the battery must match your plane and charger. (More on this later.)

Understanding these specs is key when picking the right RC plane battery.

Part 3. What battery does RC plane use?

Most RC planes use LiPo batteries (Lithium Polymer). They offer a great balance between weight and power. Here’s a quick comparison of common types:

Battery Type	Weight	Power Output	Flight Time	Usage in RC Planes
NiMH	Heavy	Low	Short	Rare
Li-ion	Light	Medium	Long	Used in gliders
LiPo	Light	High	Medium	Most common

So yes, LiPo battery for RC planes is the most popular. But there are exceptions.

Smaller toy planes might use Li-ion or even NiMH. Large-scale or custom planes might mix battery types for specific needs.

Ufine Battery specializes in all types of lithium batteries, including LiPo, Li-ion, 18650, and custom cylindrical batteries. Whether you need lightweight cells for a micro RC plane or high-capacity packs for powerful models, Ufine can provide a tailored battery solution to meet your exact needs. Contact us now to learn more.

Part 4. Is LiPo battery RC plane the best?

Yes—for most pilots, LiPo batteries are the best for RC planes. Why?

High Power-to-Weight Ratio: More energy without much weight.
High Discharge Rate: Good for powerful maneuvers.
Quick Charging: Can charge fast with the right charger.

But there are a few things to watch out for:

Can be dangerous if misused: Overcharging or damaging them can cause fire.
Need special care: You can’t charge them like your phone.
Sensitive to temperature: Don’t leave them in a hot car or out in the cold.

Still, with proper care, a LiPo RC plane battery gives the best performance.

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Part 5. RC plane battery connector types

RC batteries come with different connectors. This part matters more than most beginners realize. If the plug doesn’t match, you can’t power your plane—or worse, damage it.

Here are some common RC battery connectors:

Connector Type	Common Use
XT60	Most popular for LiPo batteries
EC3/EC5	Used in bigger models
Deans (T-Plug)	Lightweight planes
JST	Small toy planes and drones
Tamiya	Older RC models

Before buying, always check your plane’s ESC (Electronic Speed Controller) and battery plug type.

Ufine Battery provides batteries with a wide range of connector options and can customize connectors based on your specific application.

Part 6. How to choose an RC plane battery charger?

You can’t use just any charger. RC plane batteries, especially LiPo ones, need special chargers.

Look for these features:

Balance Charging: Essential for LiPo batteries. It keeps all cells charged equally.
Cell Support: Make sure it supports 2S, 3S, 4S, etc.
Amperage Control: You should be able to set how fast it charges (e.g., 1A, 2A).
Safety Features: Overcharge protection, temperature monitoring, etc.
AC/DC Options: Some work with wall outlets, others need a separate power supply.

Popular brands include ISDT, SkyRC, Hitec, and ToolkitRC.

Part 7. How to charge RC plane battery?

Charging the right way keeps your battery safe and lasts longer.

Here’s a step-by-step for charging LiPo RC plane batteries:

Use a LiPo charger (never a regular one).
Connect the balance lead and main plug to the charger.
Set voltage and cell count correctly (e.g., 3S = 11.1V).
Set charge rate to 1C (e.g., for a 2200mAh battery, charge at 2.2A).
Start charging in a fireproof bag or on a fire-safe surface.
Monitor it—never leave charging batteries unattended.

Important tips:

Don’t overcharge. Stop at 4.2V per cell.
Don’t charge hot batteries. Let them cool down first.
Store them half-charged if not using for weeks (around 3.8V per cell).

Part 8. How to maintain RC plane battery?

Want your RC plane battery to last longer? Take care of it like this:

Store at 3.7–3.85V per cell if not flying for a while.
Avoid full discharges—stop flying around 3.5V per cell.
Keep them cool and dry. Don’t leave them in the sun or in the car.
Inspect for damage. Puffy or damaged batteries? Dispose of them safely.
Use a fireproof LiPo bag during storage and charging.
Label your batteries. Helps track usage and cycles.

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Part 9. Final thoughts

So, what battery does an RC plane use? In most cases, it’s a LiPo battery, thanks to its high power, low weight, and flexibility. But knowing how to choose, charge, and care for your RC plane battery is just as important as flying itself.

Take the time to understand your battery specs. Use the right charger. Never skip safety. With proper care, you’ll fly longer and safer.

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