EEMB 4PACK Lithium Polymer Battery 3.7V 320mAh 402535 Lipo Rechargeable Battery Pack with Wire Molex Connector for Speaker and Wireless Device- Confirm Device & Connector Polarity Before Purchase

Make Sure Device Polarity Matches with Battery Pack Connector Before Purchase!!! -1. Battery Size; 2. Connector Model; 3. Connector Size; 4. Connector Polarity - This is not universal!!! (It will cause a shortage if the polarity of the battery connector does not match your device. )
Basic InfoVoltage: 3.7V;
Typical capacity: 320mAh, Min
capacity: 300mAh;
Weight: approximate 6g;
Size: 25.5 x 37 x 4.3 mm/1" x 1.46 " x 0.17 " (WxLxH).
Reliable PerformanceNo leaking, excellent cost performance and long cycle life.
PCM protection function: over charge, over discharge, over current, short circuit protection.
CertificationsUN 38.3 compliant. More than 400 EEMB batteries are UL certified. Search " MH20555" on UL for all EEMB UL certification information. Quality Service Please contact us if you have any questions or concerns with the product via message.
Storage & ApplicationKeep the cells in 40%-60% charged state during long period storage. We recommend to charge the battery every 3 months after receipt of the battery and maintain the voltage 3.7 - 4.0V. Store battery in cool and dry place. Suitable for Bluetooth speaker, dash cam, keyboard and mouse, Wi-Fi smart home systems, PDA and digital cameras, GPS, e-books, tracking devices, blood oxygen tracking equipment, pulse monitors, wireless, IoT.