Comm Error – Inogen One G3

Is your Inogen One G3 showing a “Comm Error” error message? If so, you should follow the troubleshooting steps found in the Inogen One G3 User Manual or on our Customer Care Center Self-Service Portal. You may find that it is time to replace your battery with a new one.

An Inogen One G3 battery will power your Inogen One G3 concentrator to give you freedom of mobility and allow you to travel from place to place. It’s very important that you have a battery that is in good condition, and even better if you have backup batteries ready as well.

The good news is, it’s very easy to order new batteries for your Inogen One G3.

Click below to order your new Inogen One batteries. You can order either the Single Battery, Double Battery, or order both:

Inogen One Single Battery

G3 8-Cell Battery


Inogen One Double Battery



Medicare and private insurance patients can go to our Customer Care Center Self-Service Portal at  to request a replacement of this accessory.