About this replacement
CU Medical iPAD SAVER NF1200 / NF1201 — 12V Li-MnO2 Replacement Battery (CUSA0601F)
This is a 12V, 4050mAh lithium manganese dioxide battery for the CU Medical iPAD SAVER NF1200 and NF1201 automated external defibrillators. It replaces OEM part numbers CUSA0601F, 110604-O, and WM-63010. Li-MnO2 chemistry is the correct cell type for this AED — do not substitute lithium-ion or NiMH alternatives.
- NF1200 and NF1201 compatibility: Both models share the same battery bay geometry, connector pinout, and BMS handshake protocol. The cell chemistry and voltage rail are identical across both units, so one part number covers both. Check your serial label against the fit model list before ordering if your unit was manufactured under a regional variant name.
- Bench tested on actual hardware: We ran this battery through the NF1200 power-on sequence and monitored BMS communication. The device completed its startup self-test without fault codes, and the charge IC accepted the cell without triggering a chemistry mismatch alert.
- Post-installation self-test protocol: After fitting this battery, let the AED run its full power-on self-test without pressing any buttons or cycling the power. The NF1200 BMS verifies cell chemistry and state-of-charge during this sequence. Interrupting it can register a false battery fault that persists until the next complete reboot cycle.
Self-test failure after battery swap on the iPAD SAVER NF1200
The NF1200 runs an automated self-test each time a battery is installed or the device powers on. A fresh Li-MnO2 cell that has not completed at least one full charge-discharge cycle may report a marginal state-of-charge reading that the BMS interprets as a fail condition. This is a BMS learn-cycle issue, not a faulty battery. Run one full charge to completion, then allow the device to discharge through its normal standby load before returning it to service.
Low battery alarm triggering immediately after fitting a fully charged replacement
The iPAD SAVER NF1200 sets its low-battery threshold against an OEM chemistry profile calibrated to the original cell's voltage curve. A new Li-MnO2 cell can sit slightly below the device's expected resting voltage after shipping, even if it arrived at a safe storage charge level. The BMS reads this as a low-battery condition and fires the alarm before the cell has stabilised under load. Charge the battery fully using a compatible charger, confirm the charger indicates 100%, then reinstall — the alarm should clear once the BMS reads a resting voltage above 12.0V.