Nominal Voltage:3.7V Capacity:150mAh Weight:2.8g Size:17.5*31*4.3mm Maximum Charge Current: 150 mA Limited Voltage: 4.200±0.040 V End-of Current: 3mA Maximum Discharge Current: 300 mA Cut-off Voltage: 2.750±0.005 V Charge Temperature: 0 ~ 45 ℃ Discharge Temperature: -20 ~ +60 ℃ Fit for:bluetooth speaker, dash cam, keyboard and mouse, Wi-Fi enabled smart home systems, PDA and digital cameras, GPS, monitoring units, notebook computers, …