... loudspeaker, military battery,GPS Features:1. Higher Discharge platform: 10% higher discharge efficiency than the industrial level, longer discharge time ... with the same capacity2. Low self-discharge, less than 10% monthly.3. Wide scope working temperature: -20°C ... : Charge and discharge curve WorkshopUL standard Test centre QC SystemTest Items Certifications: Lithium polymer battery 4600mAh for 7 ...