Are batteries for the portable concentrator rechargeable?

Batteries for portable oxygen concentrators can be recharged with the AC power cord, or in the car with the DC power cord. They can be recharged within the concentrator, or if they are external batteries, they can be charged with their cord, or in an external battery charger, depending on the model and the type of batteries it takes. Battery recharging time varies from concentrator unit, battery age and remaining battery life but average time ranges from 2 to 5 hours.

View available portable oxygen concentrator batteries.