EEMB Lithium Polymer Battery 3.7V 550mAh 602835 Lipo Rechargeable Pack with wire JST connector confirm device & polarity before purchase

Before buying, 4 factors MUST be confirmed - This 3.7V 550mAh LiPo battery is not universal. Verify: (1) Battery Size; (2) Connector Model; (3) Connector Size; (4) Connector Polarity (+/-): Check the wire colors (Red/Black) compared to your device, reverse polarity causes short circuit. Basic Information - Voltage: 3.7V; Typical Capacity: 550mAh, Minimum Capacity: 495mAh; Weight: about 11g; Size: 2.8 x 37 x 0.8 cm (W x L x H); Connector Model: JST-PHR-02 (pitch 2mm). PCM Protection & Certifications - Built-in PCM protection against overvoltage, deep discharge, over current and short circuit. UL certified, UN38.3 compliant for safe air/sea transportation. Over 400 EEMB models are UL listed - search "MH20555" in the UL directory for full details. Storage Instructions - In case of prolonged storage, keep the battery with a charge of 40%-60%; recharge every 3 months to maintain the voltage between 3.7 and 4.0V. Store in a cool and dry place (below 77°F) to maximize the service life. Wide Compatibility - Bluetooth speakers, dashcams, keyboard and mouse, Wi-Fi home automation systems, PDA and digital cameras, GPS, surveillance devices, e-books, sleep management devices and oximeters.