15V Car Adapter for Caire Freestyle Free Style Comfort Portable Oxygen O2 Concentrator AS200-1 AS200-101 AS200-201 REFAS200 CD041‐1 CD0411 CD04-1 DC Power Supply Battery Charger By UpBright

15V Car Adapter for Caire Freestyle Free Style Comfort Portable Oxygen O2 Concentrator AS200-1 AS200-101 AS200-201 REFAS200 CD041‐1 CD0411 CD04-1 DC Power Supply Battery Charger By UpBright

Low interference and noise Advanced technology and high quality High efficiency and reliability 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. This product is a compatible third-party accessory.UpBright 30 days money back guarantee. 1 full year service warranty. 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.