【3.7V 2000mAh Rechargeable LiPo Battery】:High-capacity 103450 lithium polymer battery pack, 3.7V / 2000mAh (11.1Wh), with stable output & extended runtime for portable electronics, wireless devices, and DIY power projects. Max charge voltage: 4.25V. Size: 10×34×50mm, weight: 35g.
【Micro JST 1.25mm 2-Pin Plug - Secure Connection】:Equipped with a Micro JST 1.25mm 2-pin connector for quick installation and secure fit. Compatible with devices using 1.25mm battery ports. Please confirm connector type and polarity before purchase.
【Built-in PCM Protection - Safety First】:Integrated PCM circuit provides over-charge, over-discharge, over-current, and short-circuit protection. Ensures safe charging cycles, extends battery life, and protects your device from damage.
【Wide Compatibility - for ESP32, Arduino, NodeMCU】:Ideal for 3.7V rechargeable devices: ESP32, Arduino, NodeMCU, Bluetooth speakers, GPS trackers, smart home systems, RC drones, DIY electronics, and portable projects.
【Easy to Install & Ready to Use】:Includes 5cm wire leads for flexible installation. Pre-assembled with connector, no soldering needed. Comes in 2 packs for multi-device setups or backups.