A: If you prefer a lighter, more portable option, the 8-cell battery is ideal. If you need longer battery life for extended outings, the 16-cell battery is the better choice.
SKU: BA-500
Inogen One G5 Replacement Battery – 8‑Cell or 16‑Cell | 8-Cell | BA
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Keep your Inogen One G5 portable oxygen concentrator running longer with these genuine Inogen G5 replacement batteries, available in 8‑cell (standard) and 16‑cell (extended) capacities. These are working batteries not in retail packaging; they are tested to charge and hold power for reliable daily use.
The 8‑cell standard battery is ideal for lighter everyday carry, giving up to about 6.5 hours of runtime on lower pulse settings when new, with a typical charge time of around 3 hours. The 16‑cell extended battery is built for long days and travel, providing up to about 13 hours of runtime on lower settings and usually recharging in about 6 hours when depleted. Actual runtime depends on your flow setting, breathing pattern, temperature, battery age, and overall use.
Both batteries use rechargeable lithium‑ion technology and can be charged while attached to the G5 via AC or DC power, or with an external charger (sold separately). They are FAA‑approved for use with FAA‑approved portable oxygen concentrators, making them suitable for air travel when airline lithium‑battery rules are followed.
These packs are designed for the Inogen One G5 and Inogen Rove 6 platforms and share the same battery form factor used on many OxyGo NEXT units, which are built on the G5/Rove 6 platform. They are not compatible with older Inogen models such as the G3 or G4, which use different batteries.
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| Manufacturer | Inogen |
| Warranty | 1-Year Warranty |
| HCPCS Code | E1356 |
| Material | Lithium |
| Replacement | Yes |
| Compatibility | Inogen One G5 |
| Model | 8-Cell & 16-Cell |
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FAQs
Which devices are these batteries compatible with?
These batteries are designed for the Inogen One G5 and Inogen Rove 6 portable oxygen concentrators. Because OxyGo NEXT is built on the same Inogen G5/Rove 6 platform, many users successfully use these batteries with OxyGo NEXT units as well. They are not compatible with Inogen G3 or G4 models.
How long will the 8‑cell and 16‑cell batteries last on a charge?
When new and used at lower pulse settings, published runtimes are up to about 6.5 hours for the 8‑cell battery and up to about 13 hours for the 16‑cell battery. At higher flow settings, runtime is shorter; for example, manufacturer/runtime tables show decreasing hours as settings increase from 1 to 6.
How long do the batteries take to recharge?
Inogen lists typical recharge times of up to ~3 hours for a fully depleted 8‑cell battery and up to ~6 hours for a 16‑cell battery when charging via AC or DC power. Charge times can be longer if the battery is being used while charging or if conditions are not ideal.
Are these batteries FAA‑approved for flying?
Yes. Inogen G5/Rove 6 batteries are FAA‑approved for use with FAA‑approved portable oxygen concentrators on commercial flights. Airlines have their own rules for spare lithium batteries (including watt‑hour limits and quantity), so always check your airline’s policy and bring enough charged batteries to cover your full travel day.
What’s the simple way to choose between 8‑cell and 16‑cell?
Choose 8‑cell if you want the lightest setup for shorter outings and everyday errands.
Choose 16‑cell if you often have long days away from power, travel frequently, or prefer fewer battery swaps.
Many users keep one of each: a standard battery for quick trips and an extended battery for long appointments or flights.
How long will these batteries last before they need replacement?
Like most lithium‑ion batteries, G5/Rove 6 batteries are typically rated for around 500 charge/discharge cycles, after which capacity gradually declines. Heavy daily use, higher flow settings, and extreme temperatures can shorten usable life, so many users replace batteries after a few years when they notice significantly reduced runtime.
Can I charge these batteries outside the concentrator?
Yes. In addition to charging while attached to the G5/Rove 6 and plugged into AC or DC power, you can use a G5/Rove 6 external battery charger (sold separately) to charge batteries off the machine for faster turnarounds.
Is this product covered by Medicare or my insurance?
Most of our products are sold as cash‑pay purchases. However, you can request an insurance‑ready receipt from us after your purchase. This detailed receipt includes the information many insurers ask for (such as item description, cost, and HCPCS code), so you can submit a claim yourself and ask your plan about partial or full reimbursement if out‑of‑network or self‑purchase benefits are available.