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) Kircuit New Global 29.4-50V AC/DC Adapter Compatible with CASAINC CP-PSP1000 PYS-PEK-U01000 CA-PSP1000 CPPSP1000 PYSPEKU01000 CAPSP1000 1000W Portable Power Station 1075Wh LiFePO4 Battery Solar Generator 29.4VDC - 50VDC 29.4V 6A Supply Cord Cable Charger Note: Rechargeable batteries don't last forever, the average battery last 1 to 3 years. If the battery is old/bad, it will not accept a charge. But not charger's problem Tested Units. In Great Working Condition. Kircuit AC adapters are tested and designed to meet the power needs of your device. This adapter converts AC power into the DC power required by your device. This supply allows you to operate your device or charge its battery from electrical power outlets. Kircuit Adapters are a portable power source for when your on the go, at home or office. This adapter has been validated and tested to ensure it will work with your device.