About this replacement
Aeonmed Respirator VG70 / VG60 — 14.4V Li-ion Replacement Battery (RRC2024)
This 14.4V 6800mAh Li-ion battery replaces the RRC2024 and JW-Y4S3P-6.6 cells used in the Aeonmed VG70 and VG60 ventilators. It supports portable patient transport and maintains device function during mains power interruptions. Capacity is 97.92Wh, matching the original specification.
- VG70 and VG60 shared platform: Both ventilators run the same 14.4V battery rail, BMS handshake protocol, and connector format. One cell format covers both units — no adapters, no rewiring.
- Bench tested on actual hardware: We cycled this cell through the VG70 power-on sequence and monitored BMS communication. The battery passed the device's internal self-test and accepted a full charge without triggering a fault state.
- Post-swap self-test protocol: After installing this battery, let the VG70 complete its full power-on self-test without interruption. The device runs a BMS verification step at startup — cutting power during this sequence can register a false battery fault that persists until the next clean reboot.
VG70 alarming low battery immediately after a confirmed full charge
The VG70's battery management system applies a chemistry verification threshold at startup. A new cell that hasn't completed one full charge-discharge cycle may report a state-of-charge value the device interprets as below threshold — even when the cell is fully charged. This is a BMS calibration issue, not a faulty battery. Run one complete charge-discharge cycle before clinical use to allow the BMS to map the cell's actual capacity curve.
Device will not power on after battery sat in storage
Li-ion cells self-discharge during storage. If the replacement battery has been sitting long enough, its resting voltage may have dropped below the VG70's minimum BMS recovery threshold — typically around 10.5V for a 14.4V nominal pack. The device won't attempt to boot below that voltage, which looks identical to a dead battery. Place the cell on charge for a minimum of two hours before attempting to power on the device; most BMS circuits will recover the cell once voltage climbs above the recovery floor.