External Battery Charger for EverGo Portable Oxygen Concentrator by Philips Respironics

The concentrator cannot keep up with charging batteries while the machine is in use. I juggled 6 batteries to keep my mother on oxygen 24/7 for 12 days of travel. I also used the charger to recalibrate the batteries original to the machine and they performed like new.

Have not had a chance to really work the charger hard. It keeps two extra batteries for the O2 concentrator fully charged. Can't attest to the recalibrate function, we have not used a lot of extra battery. Price is very good compared to many other medical equipment suppliers.

works as advertised

Good selection, good and quick delivery. I like the use of the charger and wish they made a double charger. Maybe some day.

This charger keeps my extra batteries for the Resperonics Evergo powered and ready to supply my O2 needs on the go. I am on 3 LPM with a high breath rate so I get about 4-5 hours out of two charged batteries. This charger keeps my extra batteries ready. It charges quietly and efficiently.

Charges Battery Out of concentrator, by charging one battery in the concentrator and one in this total charge time is reduced.

Had to buy charger because i bought 2 extra battery`s to meet the time demand i needed to be portable oxygen . I could not charger 4 battery`s with out it in time needed . charger works great works very well

I needed the extra chargers for my trips-------Thank You.