(Note: 36V is battery's voltage. NOT charger's voltage. Please Check For Compatibility With Your Unit. Thanks.)
Note: 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. This power cable is a lead. If it does not charge the Jumpstarter. it's usually the Jumpstarter's fault, but not the power cable.