Rechargeable batteries have a limited lifespan, typically lasting 1 to 3 years. A battery that is no longer functional will not charge, although this may not be due to a problem with the charger. If unsure about the cause of the issue, a volt meter can determine if the charger is functioning properly or if the battery is the problem.
(Note: ⚠️!!! 48V is battery's voltage. ⚠️!!! NOT charger's voltage. Please Check For Compatibility With Your Unit. Thanks.)
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. eeTao 30 days Refund. 24 Months Exchange.