【Update for Gotrax】Approved replacement for GOTRAX GXL V2, G2, G3, G4, Apex, Glider, XR Elite, XR Ultra.【Faster and Easy to use】: Output 42V 2A 84W. Connect and forget, the charger will run automatically. LED turns Green from Red means full charge..【Universal compatible 2 plugs 】5.5mm 1-prong & 8mm 3-prong. Can't be used for all brands' 36 Volt Lithium Battery..【Extend Battery Life】: CC-CV working mode maximize the life span of battery. Just plug in and it will charge and maintain your batteries automatically..【Reliable with High quality】: Eco-friendly, High efficiency, light weight, Heavy duty. 7*24h service from SafPow.