By Anderson 
Lithium Polymer (LiPo) batteries are widely used in RC vehicles, drones, and other high-performance applications due to their high energy density and lightweight design. Among the various configurations, 2S LiPo batteries are popular for their balance of power and size. If you’re looking to buy 2S LiPo batteries online, this guide will help you understand their features, benefits, and key considerations before purchasing.
A 2S LiPo battery consists of two cells connected in series, providing a nominal voltage of 7.4V (with a full charge voltage of 8.4V). These batteries are commonly used in:
- RC cars, trucks, and buggies
- Drones and quadcopters
- FPV racing
- Robotics and DIY electronics
✔ High Discharge Rate (C Rating): Supports high-current applications.
✔ Lightweight & Compact: Ideal for portable devices.
✔ Fast Charging: Can be charged quickly with a LiPo-compatible charger.
✔ Variety of Capacities: Available from 500mAh to 10,000mAh+ depending on usage.
When shopping for 2S LiPo batteries online, consider the following:
- Capacity (mAh): Determines runtime—higher mAh means longer usage.
- Discharge Rate (C Rating): Higher C ratings (e.g., 50C, 100C) deliver more power for high-performance needs.
- Connector Type: Ensure compatibility with your device (e.g., XT60, Deans, JST).
- Brand Reputation: Stick to trusted brands like Turnigy, Gens Ace, Tattu, or Venom.
- Safety Features: Look for built-in protection against overcharge, over-discharge, and short circuits.
You can purchase 2S LiPo batteries from reputable online stores such as:
- Amazon
- HobbyKing
- GetFPV
- Banggood
- AliExpress
Always check customer reviews and seller ratings before buying.
- “2S” means two cells connected in series, providing 7.4V (nominal).
- A fully charged 2S LiPo reaches 8.4V (4.2V per cell).
- Runtime depends on capacity (mAh) and usage. A 2000mAh battery may last 10-20 minutes in an RC car under heavy load.
- Only if your device supports lower voltage. A 3S (11.1V) provides more power, so switching to 2S (7.4V) may reduce performance.
- Store at 3.7V–3.8V per cell in a fireproof bag and at room temperature.
- No, you need a LiPo balance charger to safely charge and balance the cells.
- Over-discharging (<3.0V per cell) can permanently damage the battery. Use a LiPo alarm to monitor voltage.
- Yes, if handled properly. Avoid puncturing, overcharging, or short-circuiting to prevent fires.
- 2S = Series (higher voltage, 7.4V)
- 2P = Parallel (higher capacity, same voltage)
- Yes, if your drone supports 7.4V. Check your drone’s specifications before purchasing.
Buying 2S LiPo batteries online is convenient, but always prioritize safety, compatibility, and brand reliability. Whether you’re powering an RC car, drone, or custom project, choosing the right battery ensures optimal performance and longevity.
Micheal