【Perfect Replace】High capacity circulatory function, perfect replace your original batteries.
【Compatible models】High quality replacement battery for Charge 4,Charge 4J,JBLCHARGE4BLUAM,Charge 4BLK.
【Battery Parameters】Volts:3.7V,Capacity:10200mAh/37.74Wh,Type:Li-ion,Net Weight:150.2g / 5.30oz,Size:66.30 x 38.50 x 36.30mm,Color:Blue.
Quality Certification: ROSH, CE and UL triple certification. No memory effect, over-charge, over-discharge, over-heat, over-current and short-circuit protection
If your wireless device's cruising time is significantly reduced, you should replace the battery.