Inogen Extended (16-cell) Battery - for the Inogen One G5/Inogen Rove 6 - Up to 12 hours, 45 minutes of battery life on setting 1-2.18 lbs.

Great Inogen Extended Battery!Have had it for 6 months and has never failed. No problems!Fit mi Inogen G 5 perfectly!Run time 6 hours on setting of 2.I am very pleased.I will purchase another one for back up on those real long days!!

This was a blessing to have on vacation. We bought it not only for the airline requirement of extra batteries for duration of the flight, but was great to have during our daughter's wedding and reception. Apria messed up and gave us a new Innogen (that obviously hadn't been tested for the ability to charge) the day before our trip and we didn't check it first just started off using the new unit, but found out in Wyoming they gave us one that would not charge at all. Thank God we purchased this battery or my husband would have had to use 0² tanks the whole 2 week trip. Definitely worth the price from just one trip away from home!

This worked so much longer than the single battery. So happy we grabbed this off Amazon instead of thru the company directly. Great price.

Works great. Lasts a long time at a great price!

This battery gives a huge capacity boost to the included battery pack. It charges just like the original one, by plugging the charger into the portable oxygen concentrator. To make life a bit easier, there is a separate charger which is a small unit that clips into the battery when it is out of the concentrator, and the charging cord plugs into that. That way, you can charge one battery while the other is in use.My only complaint is that they SEVERELY overcharge for this battery compared to similar capacity batteries for non medical devices it is 4-5x the cost.... (But what you gonna do, the battery connection is proprietary, so you have to buy from them)

Over priced

The battery came in Inogen box. It charged fully and I love having so much time on the battery. Great buy!

Arrived with in 24 hours. We use it after charging, my husband uses it on 4 and the single one would run out within a couple hours yesterday with the new one it lasted alot longer.