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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.

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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

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Inogen’s US dealer policy does not allow authorized dealers to publish prices for new equipment or to complete the purchase online. That is why you see “Check price” instead of a number — it is not a site error.

To get your price, call (786) 755-8063, message us on WhatsApp, or use the chat. We’ll send you a formal quote or an invoice by email, and we ship nationwide from Miami.

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

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Brand: Inogen
SKU: BA-408
Category: Batteries

Description
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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.