3.7V 400mAh Rechargeable LiPo Battery (121525) with PCM Protection Board

3.7V 400mAh Rechargeable LiPo Battery (121525) with PCM Protection Board Product Description: Power your compact electronic devices with our high-performance 3.7V 400mAh 121525 Lithium Polymer (LiPo) Battery. Built-in with a smart Power Circuit Module (PCM), this ultra-thin rechargeable battery guarantees maximum safety against overcharging, over-discharging, and short circuits. Ideal for DIY electronics, wearable devices, Bluetooth headsets, IoT sensors, and small remote-controlled gadgets. Key Features： Reliable Capacity: True 400mAh capacity provides stable and long-lasting runtime for your low-to-medium power applications. Integrated Safety Protection: Equipped with a built-in PCM/BMS protection board to prevent over-charge, over-discharge, over-current, and short circuiting. Compact & Ultra-Thin Form Factor: Standard 121525 dimensions (Thickness: 12mm, Width: 15mm, Length: 25mm) engineered to fit tight spaces without sacrificing power output. Plug-and-Play Ready: Pre-wired with standard leads/connector for seamless integration into your custom projects or battery replacement setups. Technical Specifications: Battery Type: Lithium Polymer (LiPo) Model: 121525 / 121525P Nominal Voltage: 3.7V (Fully charged at 4.2V) Rated Capacity: 400mAh Dimensions: 12mm x 15mm x 25mm (±0.5mm) Protection Board (PCM): Yes (Overcharge threshold: 4.25V±0.05V; Over-discharge threshold: 2.75V±0.1V) Lead Wire: Red (+), Black (-) / Silicone insulated Package included: 1 x 3.7V 400mah 121525 Lipo Battery