Inogen One G5 Replacement Battery (8 cell and 16 cell)

Reliable portable power for your Inogen portable oxygen concentrator

Not in retail box

If you rely on the Inogen One G5 portable oxygen concentrator, the right battery helps you stay mobile and confident all day. These Inogen One G5 replacement batteries are made for dependable, rechargeable power at home, on errands, and during travel.

Choose the 8 cell battery for lighter everyday carry, or the 16 cell battery for extended runtime when you need more hours away from an outlet.

Why this battery is a must have

Dependable backup power
A spare battery helps reduce interruptions and gives you flexibility for longer days.

Built for real life routines
Great for appointments, shopping, family visits, and travel days where charging is not always convenient.

Easy to swap and recharge
Quick battery changes help you stay focused on your day, not on your power level.

More affordable long day setup
Instead of rushing home to recharge, adding the right battery can be the more affordable way to extend your time on the go.

Choose the right option

8 cell battery

Best for everyday portability
A lighter option that works well for daily errands and as a convenient backup.

Typical maximums when fully charged
• Runtime: up to 6.5 hours
• Charge time: up to 3 hours

16 cell battery

Best for extended time away from home
Ideal for long outings, travel days, and users who want fewer recharges.

Typical maximums when fully charged
• Runtime: up to 13 hours
• Charge time: up to 6 hours

Battery runtime varies based on your G5 setting, breathing pattern, temperature, battery age, and overall device use.

Key features

• Two capacities so you can match your routine with an 8 cell or 16 cell option
• Rechargeable lithium ion design for repeatable daily charging
• Charges on AC or DC power when installed in the G5 and connected to the correct power supply
• Quick swap design so you can replace batteries and keep moving
• Great for travel planning when you need extra hours away from outlets

Compatibility notes

These replacement batteries are designed for the Inogen One G5 platform and are also compatible with the Inogen Rove 6.

Many customers also use this same battery platform with the OxyGo Next, since OxyGo sometimes packages the identical Inogen branded battery and it works the same in OxyGo units.

Not compatible with other Inogen models like the Inogen One G3 or Inogen One G4, since each model uses its own battery type.

Travel tip for buyers comparing batteries

People often search comparisons like:
• Inogen One G5 8 cell vs 16 cell battery
• Inogen One G5 battery vs OxyGo Next battery
• Inogen One G5 battery vs aftermarket replacement

The simple way to choose is this:
If you want the lightest daily setup, go 8 cell.
If you want longer coverage between charges, go 16 cell.

For flights, always check airline battery rules. Most airlines use watt hour thresholds for spare lithium batteries, so review the watt hour label on your battery and confirm your airline policy before travel.

Who this battery is best for

• Inogen One G5 users who want a reliable backup battery
• Travelers planning long days away from charging outlets
• Caregivers building a dependable oxygen routine
• Anyone looking for an affordable Inogen G5 replacement battery option

Need help choosing

Not sure whether the 8 cell or 16 cell fits your routine? Open a chat and tell us your typical G5 setting and how long you are away from home on a normal day. We will help you pick the best option.