EEMB Lithium Polymer Battery 3.7V 1100mAh 603449 Lipo Rechargeable Pack with wire JST connector for Radio and Bluetooth Speaker confirm device & polarity before purchase(4)

Attention: Confirm 3 Factors Before Purchase - This 3.7V 1100mAh LiPo is NOT universal. Verify: (1) Size: 34.5 x 51 x 6.3mm, (2) Connector: JST‑PHR‑02 2mm Pitch, (3) +/- polarity alignment. Wrong polarity = short circuit. Check red/black wires vs your device. 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 certified, and UN38.3 compliant for safe air/sea shipping. 400+ EEMB models UL listed – search "MH20555" on UL directory for full details. 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. Product Performance: No leaking, low internal resistance, 500+ cycle life. Rechargeable lithium‑polymer battery for compact portable electronics.