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Inogen One G4/ Rove 4 Standard Battery

Genuine single (standard) battery for the Inogen One G4 and Rove 4 — light at just 0.6 lb.

US$407.00

Out of stock

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Genuine single (standard) battery for the Inogen One G4 and Inogen Rove 4
Up to about 2.7 hours per charge on setting 1 (setting-dependent)
Ultra-light at just 0.6 lb — keeps the concentrator easy to carry
Recharges fully in about 3 hours
Ships free in the USA

Genuine single (standard) battery for the Inogen One G4 and Inogen Rove 4
Up to about 2.7 hours per charge on setting 1 (setting-dependent)
Ultra-light at just 0.6 lb — keeps the concentrator easy to carry
Recharges fully in about 3 hours
Ships free in the USA

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

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VISAAMEXDISC●VERaffirm

Brand: Inogen
SKU: BA-400
Category: Batteries

In short

The lightweight everyday battery for G4 & Rove 4

The BA-400 is the genuine single (standard) battery for the Inogen One G4 and Inogen Rove 4 portable oxygen concentrators. It weighs just 0.6 lb, runs up to about 2.7 hours per charge on setting 1, and recharges in about 3 hours.

A genuine single battery that keeps the Inogen One G4 or Rove 4 at its lightest for errands and daily use.

✅ 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

Just 0.6 lb

The single battery keeps the G4 / Rove 4 at its lightest — ideal for errands, appointments, and daily carry.

G4 & Rove 4

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

Quick recharge

Back to full in about 3 hours, so it's ready for your next outing fast.

Details

What's included

One genuine Inogen single (standard) battery (part BA-400) for the G4 / Rove 4. Recharges through the concentrator with its AC or DC power; power supplies and chargers are sold separately.

Why genuine matters

A genuine single battery matches the G4/Rove 4 charge management and bay for full rated runtime and a secure, snug fit. Generic packs can under-perform or seat loosely.

Frequently asked questions

Single or extended — which do I need?

The single (this one) is lightest and runs up to about 2.7 hours on setting 1 — best for short outings. The extended BA-408 roughly doubles that (up to about 5 hours) for travel and long days, with a bit more weight.

Does it fit both the G4 and Rove 4?

Yes. The Inogen One G4 and Rove 4 share the same battery platform, so the BA-400 works with both.

How long to recharge?

About 3 hours to full, depending on the flow setting and whether the device runs while charging.

Is it genuine?

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

Can I fly with it?

It's lithium-ion, so airline rules apply to spare batteries carried in the cabin. Confirm your airline's policy before traveling.