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Inogen One G4/ Rove 4 Extended Battery

Genuine extended (double) battery for the Inogen One G4 and Rove 4 — up to about 5 hours per charge.

US$618.00

In stock

Call (786) 755-8063

Genuine extended (double) battery for the Inogen One G4 and Inogen Rove 4
Up to about 5 hours per charge on setting 1 — roughly double the single battery
Snap-on design for easy attach and removal
Recharges from the standard AC supply, DC car charger, or external charger
Ships free in the USA

Genuine extended (double) battery for the Inogen One G4 and Inogen Rove 4
Up to about 5 hours per charge on setting 1 — roughly double the single battery
Snap-on design for easy attach and removal
Recharges from the standard AC supply, DC car charger, or external charger
Ships free in the USA

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

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Brand: Inogen
SKU: BA-408
Category: Batteries

In short

More hours on your G4 or Rove 4

The BA-408 is the genuine extended (double) battery for the Inogen One G4 and Inogen Rove 4 portable oxygen concentrators. It delivers up to about 5 hours per charge on setting 1 — roughly double the single BA-400 — for longer time between charges.

The extended battery that gives the Inogen One G4 and Rove 4 longer runtime for travel and full days out.

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

Shop the compatible concentrator: Inogen One G4 · Inogen Rove 4

Up to ~5 h

On setting 1, the extended pack runs up to about 5 hours — roughly double the single battery.

G4 & Rove 4

One genuine battery fits both the Inogen One G4 and the Rove 4 — the two share the same battery platform.

Snap-on swap

Attaches and releases quickly, so switching packs is fast and tool-free.

Details

What's included

One genuine Inogen extended battery (part BA-408) for the G4 / Rove 4. Recharges from the standard AC power supply, DC car charger, or the external battery charger; power supplies and chargers are sold separately.

Why genuine matters

A genuine Inogen pack matches the G4/Rove 4 charge management and latch for the full rated runtime and a secure fit. Off-brand batteries can under-deliver, charge poorly, or seat loosely.

Frequently asked questions

Does one battery really fit both the G4 and Rove 4?

Yes. The Inogen One G4 and Inogen Rove 4 use the same battery platform, so the BA-408 extended battery fits both.

Extended vs single — which should I get?

The extended (this one) runs up to about 5 hours on setting 1 for travel and long days. The single BA-400 is lighter and runs up to about 2.7 hours — better for short trips and minimal weight.

How do I recharge it?

Through the concentrator with the AC supply or DC car charger, or off-device with the external battery charger.

Is it genuine?

Yes, a genuine Inogen battery for the G4 / Rove 4. It ships free in the USA.

Can I fly with it?

It's lithium-ion, so airline rules for spare batteries in the cabin apply. Check your airline's policy before you travel.