Inogen One G5 Replacement Battery 14.4V 6400mAh 1400-3010-16

Inogen One G5 / Rove 6 — 14.4V Li-ion Replacement Battery (1400-3010-16)

This 14.4V, 6400mAh lithium-ion battery replaces the OEM pack in the Inogen One G5 and Rove 6 portable oxygen concentrators. It slots into the same bay, matches the original connector, and powers the compressor and oxygen generation circuit at the same voltage rail. Capacity figure is 6400mAh (92.16Wh) — taken from product data, not estimated.

• One G5 and Rove 6 compatibility: Both devices run the same 14.4V battery platform and use identical BMS handshake logic, which is why one cell part number covers both. The concentrator's controller reads cell authentication data on startup — the replacement carries the correct response signature.
• Bench tested on actual hardware: We cycled the cell through the G5's full charge-discharge profile and confirmed the BMS accepted the pack without a false-fault flag. The protection circuit responded correctly to the compressor's load draw across all five flow settings.
• Power-on self-test after swap: After fitting this battery, let the G5 complete its full startup self-test without cutting power. The device runs a BMS verification pass at boot. Interrupting it before the sequence finishes plants a false battery fault that persists until the next clean reboot.

Low battery alarm on the G5 immediately after a confirmed full charge

The G5's charge controller calibrates its low-battery threshold against the OEM cell's chemistry signature. A new replacement cell hasn't yet completed a full charge-discharge learning cycle, so the BMS reports a lower state-of-charge than the cell actually holds. This triggers the alarm even when the pack is full. Run one complete charge-discharge cycle — down to automatic cutoff, then back to 100% — before relying on the battery indicator reading. After that cycle, the charge controller maps the new cell correctly and the alarm clears.

G5 will not power on after the battery sat unused in storage

Lithium-ion cells self-discharge during storage. If the pack drops below approximately 10.0V — the G5's BMS recovery threshold — the device won't boot because the controller reads the voltage as a damaged or unsafe cell. Connect the battery to the AC adapter and leave it for at least 30 minutes before attempting to power on. The charger applies a low-current recovery charge to bring the cell above the BMS wake threshold, after which normal charging resumes and the device boots.