Battery for Portable Oxygen Concentrator NT-03 & NT-05

Please note: 1. There is one battery that comes with the oxygen concentrator. If you need one or more extra batteries, please feel free to place an order on this product page.2. These batteries will be shipped separately from the oxygen concentrator, and they usually take 15-20 business days to deliver.2. The accessories/battery do not apply to the return and refund policy.This battery matches Portable Oxygen Concentrator NT-03 & NT-05. More details about the Oxygen Concentrator NT-03 machine.More details about the Oxygen Concentrator NT-05 machine. 2500 mAh Battery 1. Comes with the NT-03/NT-05 portable oxygen concentrator2. Battery Lasting: last for 2-3 hours3. Standard battery pack capacity: 2500mAH 14.8V, the highest voltage is 16.8V  Using time  2 hours for NT-05; 2.5 hours for NT-03  Charging time  1 hour  Weight  330g