42V AC/DC Adapter Compatible with Model: HY-A02 HYA02 37V 2.0Ah 37VDC 74Wh 2000mAh Lithium Ion Li-ion Battery Shenzhen Uni-Sun DC42V 0.4A 42VDC Switching Power Supply Cord Battery Charger - saschedross

• (Output 42V. NOT for 24V version. NOT for 29.4V version. w/ Barrel Round Plug. NOT 3-Prong Connector. 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. New 42V AC / DC Adapter Compatible with Model: HY-A02 HYA02 37V 2.0Ah 37 Volt 2Ah 37 Volts 37VDC 74Wh 2000mAh 37 V 37 VDC Lithium Ion Li-ion Battery Shenzhen Uni-sun Electronics Co., Ltd DC42V 0.4A +42V 1A 42.0V 1.0A 42 Volt 42 Volts 42VDC 400mA 1000mA 42 V 42 VDC Switching Power Supply Cord Cable PS Battery Charger Mains PSU (w/ Barrel Round Plug Tip single prong. NOT 3-Prong Connector. 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. 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.