Beefy 3.7V 4000mAh LiPo Battery With USB Charger Cable 1S Protection Board Insulated Rubber Tape Micro JST 1.25 Plug For Arduino ESP32 Drones RC Cars Modules

High-Cap 3.7V 4000mAh LiPo Battery with USB Charger
✔️ Single unit, 4000mAh, USB charger included, 1S protection board.

This 3.7V LiPo battery delivers solid energy for hobby drones, RC cars, and development boards like Arduino and ESP32. It comes with a USB charging cable and a 1S protection board to help keep your projects safe while you power up your builds.

✅ 4000mAh capacity at 3.7V for extended runtimes in drones, RC cars, and microcontroller projects.
✅ USB charging cable (3.7V-300mA) with intelligent IC and reverse polarity protection.
✅ Micro JST 1.25 plug/connector for easy integration with Arduino, ESP32, and other hobby gear.
✅ 1S protection board included for safer charging and operation.
✅ Lightweight, compact design ideal for portable electronics and custom setups.

💡 What is a high-capacity 1S LiPo battery used for in hobby projects and how do you charge it safely?

Here's a practical answer to help maximize uptime and keep things safe.

- Safe charging with the included USB charger featuring intelligent IC and reverse polarity protection.
- Use devices that match 3.7V and 4000mAh for optimal runtime.
- Connect the Micro JST 1.25 plug with correct polarity to avoid damage.
- Monitor temperature during charging and use in ventilated areas.
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