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-516
Inogen One G5 - Replacement Battery | 16-Cell | BA
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Inogen One G5 Replacement Battery (8-Cell & 16-Cell)
Reliable portable power for your oxygen concentrator
Not in retail box
If you rely on the Inogen One G5 portable oxygen concentrator, having the right battery is essential for staying mobile and confident throughout the day. These Inogen One G5 replacement batteries are designed to provide dependable, rechargeable power whether you are at home, running errands, or traveling.
You can choose between the 8-cell battery for lighter everyday use or the 16-cell battery for extended runtime. Both options are built specifically for the Inogen One G5 and help ensure uninterrupted oxygen therapy when you need it most.
Why choose an Inogen One G5 replacement battery
Dependable backup power
A spare battery reduces the risk of interruptions and gives you more flexibility for longer days away from home.
Designed for mobility
Compact and lightweight batteries make it easier to move freely without being tied to a wall outlet.
Easy to swap and recharge
The battery design allows for quick replacement, so you can change batteries and keep going without hassle.
Built for travel planning
Portable batteries are essential for appointments, car rides, and trips where consistent power access is limited.
Choose the right battery for your routine
8-Cell Battery
Best for everyday portability
A lighter option that works well for daily errands, short outings, and as a convenient backup battery.
16-Cell Battery
Best for extended time away from home
Provides longer runtime, making it ideal for travel days, long appointments, and users who want fewer recharges.
Battery runtime varies based on your flow setting, breathing rate, battery age, and environmental conditions.
Key Features
• Two capacity options – Choose 8-cell for portability or 16-cell for longer runtime
• G5-specific design – Made to fit and perform with the Inogen One G5
• Rechargeable lithium-ion power – Reliable, repeatable charging for daily use
• Flexible charging options – Charge using AC power at home or DC power in a vehicle
• Quick battery changes – Designed for simple, user-friendly swapping
Battery Performance Overview
(Manufacturer listed maximums on lower settings)
Runtime
• 8-cell battery: up to 6.5 hours
• 16-cell battery: up to 13 hours
Charging time (when connected to power)
• 8-cell battery: up to 3 hours
• 16-cell battery: up to 6 hours
Tip: If you rotate batteries and avoid extreme temperatures, you can help maintain better long-term battery performance.
Who this battery is best for
• Inogen One G5 users who want a reliable backup battery
• Travelers planning longer days away from charging outlets
• Caregivers supporting daily oxygen therapy routines
• Anyone looking for an affordable Inogen battery replacement
Need help choosing between 8-cell and 16-cell
If you are not sure which battery fits your lifestyle, open a chat with us. Tell us your typical flow setting and how long you are away from home on a normal day, and we will help you choose the right option.
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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
How do I choose between the 8-cell and 16-cell battery?
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.
How long does each battery last?
The 8-cell battery provides up to 6.5 hours of use, while the 16-cell battery lasts up to 13 hours, depending on the oxygen flow setting.
Are the batteries FAA-approved for air travel?
Yes, both the 8-cell and 16-cell batteries are FAA-approved, making them safe for carry-on travel.