eeTao 54.6V Replacement Charger Compatible with Wooken TotGuard T-276 T276 48V/10Ah 480Wh 48VDC 48.0V + 48 V Lithium-ion Battery Pack 500W 27.5'' Fat Tire Folding Electric Bicycle Mountain Bike Power Supply Cable Cord PS Mains PSU Compatible with 48V Battery 54.6V Charger World Wide Input Voltage 100-240VAC 50/60Hz. OVP, OCP, SCP Protection (OVP: Over Voltage output Protection. OCP: Over Current output Protection. SCP: Short Circuit output Protection). Tested Units. In Great Working Condition 30-day return policy !!!Tips: Rechargeable batteries don't last forever, the average battery last 1 to 3 years. If the battery is old/dead, it will not accept a charge. But not charger's problem. If you're not sure whether battery or charger is dead or not. You must have a volt meter in order to tell whether or not a charger is working. (Note: !!! 48V is battery's voltage. !!! NOT charger's voltage. Please Check For Compatibility With Your Unit. Thanks.) eeTao 54.6V Replacement Charger Compatible with Wooken TotGuard T-276 T276 48V/10Ah 480Wh 48VDC 48.0V + 48 V Lithium-ion Battery Pack 500W 27.5'' Fat Tire Folding Electric Bicycle Mountain Bike Power Supply Cable Cord PS Mains PSU CECCCROHS 100-240