EEMB Lithium Polymer Battery 3.7V 2000mAh 103454 Lipo Rechargeable Pack with wire JST connector for Bluetooth Speaker and Dashcam confirm device & polarity before purchase(4)

Attention: Confirm 3 Factors Before Purchase - This 3.7 V 2000 mAh LiPo is NOT universal; Verify: (1) Size: 34.5 x 56 x 10.6 mm, (2) Connector: JST-PHR-02 2 mm Pitch, (3) +/- polarity alignment; Wrong polarity = short circuit Wide Compatibility: Compatible with Bluetooth speakers, dash cams, keyboards/mice, Wi-Fi smart home, PDA, GPS, digital cameras, e-books, trackers, telematics, sleep monitors, blood oxygen/pulse oximeters, and IoT devices PCM Safety and Certifications: Built-in PCM protection against overcharge, over-discharge, over-current, short circuit. UL, IEC62133-2 certified, and UN38.3 compliant for safe air/sea shipping. 400+ EEMB models UL listed Storage Guide: Keep at 40%-60% charge during long-term storage; recharge every 3 months to maintain 3.7-4.0V. Store in cool & dry place (below 25°C) to maximize lifespan Stable Performance: Designed with low internal resistance and 500+ cycle life; Reliable rechargeable lithium polymer battery for compact portable electronics