Basic Info—Voltage: 3.7V; Typical capacity:150mAh ,Min capacity:140mAh; Weight: approx 2.8g; Size: 17.5x31x4.3mm (WxLxH). Connector: 51021-0200, the distance between positive and negative poles is 1.25mm and the width of the whole plug is 4.25 mm.
Must Confirm before Purchase: 1.Battery size; 2. Connector model; 3.Connector size; 4. Polarity of the connector - This is not universal(This will cause a short circuit if the polarity of the battery connector does not match your device.)
Storage & Application – Store at 40%-60% charge; recharge every 3 months to maintain 3.7-4.0V. Keep cool & dry. Ideal for Bluetooth speakers, dash cams, keyboards, mice, smart home, PDAs, GPS, monitors, e-books, trackers, health monitors, and IoT.
Reliable Performance - No leakage, excellent economic performance and long service life. PCM protection function: overcharging, over-discharge, over current, short circuit protection.
Certifications – UL certified, IEC 62133-2 certified, UN38.3 compliant for safe air/sea shipping. 400+ EEMB models UL listed – search "MH20555" on UL directory for details.