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Inogen One G3 Extended Battery

Genuine 16-cell extended battery for the Inogen One G3 — roughly double the standard runtime.

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Genuine 16-cell extended (double) battery for the Inogen One G3
Up to about 10 hours per charge on setting 1 — roughly double the 8-cell standard
Ideal for long days out, travel, and fewer charging stops
Recharges in up to about 8 hours
Ships free in the USA

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Genuine 16-cell extended (double) battery for the Inogen One G3
Up to about 10 hours per charge on setting 1 — roughly double the 8-cell standard
Ideal for long days out, travel, and fewer charging stops
Recharges in up to about 8 hours
Ships free in the USA

Genuine productFree shipping on orders $99+Ships from Miami, FLExpert help · (786) 755-8063

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Brand: Inogen
SKU: BA-316
Category: Batteries

Description
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In short

Go farther between charges on your G3

The BA-316 is the genuine 16-cell extended (double) battery for the Inogen One G3 portable oxygen concentrator. It delivers up to about 10 hours per charge on setting 1 — roughly double the 8-cell standard battery — and recharges in up to about 8 hours.

The extended 16-cell G3 battery for long days, travel, and outings where a standard battery would run short.

✅ Inogen One G3 ❌ Inogen One G4 ❌ Inogen One G5 ❌ Inogen Rove 4 ❌ Inogen Rove 6

Shop the compatible concentrator: Inogen One G3

Up to ~10 h

On setting 1, the 16-cell pack runs up to about 10 hours — roughly twice the standard 8-cell battery.

Made for the G3

A genuine Inogen One G3 battery; it does not fit the G4, G5, or Rove models.

Fewer stops

More capacity means fewer charging breaks on long days, road trips, and travel.

Details

What's included

One genuine Inogen One G3 extended 16-cell battery (part BA-316). Recharges through your G3 with its AC or DC power supply; chargers are sold separately.

Why genuine matters

The genuine 16-cell pack matches the G3's charge management and bay latch, so you get the full rated runtime and a secure fit. Off-spec batteries can under-deliver, charge inconsistently, or seat poorly.

Frequently asked questions

What's the difference between this and the standard G3 battery?

This is the extended 16-cell (double) battery — up to about 10 hours on setting 1, roughly double the standard 8-cell BA-300 (up to about 4.7 hours). Choose this for long days and travel; choose the standard for lighter weight and short outings.

How long does it take to recharge?

Up to about 8 hours through the G3, depending on flow setting and whether the device is running while charging.

Does it fit any other Inogen model?

No — it's for the Inogen One G3 only. The G4, G5, Rove 4, and Rove 6 use different batteries.

Is it genuine?

Yes, a genuine Inogen One G3 extended battery. It ships free in the USA.

Can I take it on a flight?

It's a lithium-ion pack, so airline rules apply to spare batteries in the cabin. Confirm your airline's lithium-battery policy before you travel.