(Note: !!!!! 20V is Vacuum's battery 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. Kircuit New Global 2-Prong AC / DC Adapter Compatible with Lanchez Model PCT403T-L PCT403TL 20V 2.0Ah DC20V 2000mAh 20 Volt 2000 mAh 20 Volts 2.0 Ah 20VDC 2Ah Lithium ion Li-ion Rechargeable Battery Pack 40W Cordless Handheld Pool Swimming Vacuum Cleaner Class 2 Switching Power Supply Cord Cable PS Wall Home Charger Mains PSU (w/ 2-pin Connector) !!!!!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. Compatible with listing item ASIN: B0CSFZYM76 -- Cordless Pool Vacuum with Strong Suction, Handheld Rechargeable Swimming Pool Cleaner with Powerful Suction up to 17.5 GPM for Inground and Above Ground Pools, Hot Tubs 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.