CareFusion Alaris Asena 7.2V 2700mAh Ni-MH Replacement Battery

CareFusion Alaris Asena Syringe Pump CC/GH/PK — 7.2V Ni-MH Replacement Battery (100SP01122)

This is a 7.2V, 2700mAh Ni-MH replacement battery for the CareFusion Alaris Asena Syringe Pump range. It fits the CC, GH, and PK variants — all three platforms use the same battery bay and BMS handshake. Capacity is rated at 19.44Wh and matches the OEM specification for portable infusion operation.

• CC, GH, and PK compatibility: All three Asena variants share the same 7.2V cell configuration, connector pinout, and BMS communication protocol. One battery number — 100SP01122 — covers all three because the charge management IC does not distinguish between pump variants at the hardware level.
• Bench tested on actual hardware: We cycled this cell through the Asena pump's charge and discharge sequence. The BMS accepted the cell without fault codes, and the charge IC completed a full termination cycle without delta-V errors.
• Post-installation self-test protocol: After fitting this battery, allow the pump to complete its full power-on self-test without interruption. The Asena BMS runs a verification sequence at startup — cutting power mid-cycle logs a false battery fault that will persist until the next complete reboot.

Charge indicator not reaching 100% on the first charge cycle

Ni-MH cells arrive partially discharged from storage. The Asena charge IC applies a conservative current limit on the first cycle to probe the cell's internal resistance before committing to full charge termination. This is normal behaviour — the charge IC is not faulting, it is characterising the new cell. Run one full charge from flat to trigger the delta-V cutoff correctly. After that first cycle, the charge indicator will reach 100% and hold.

Pump shuts down unexpectedly during the first week of use

New Ni-MH cells have higher internal resistance for the first 8–10 discharge cycles. The Asena pump's load profile during active infusion draws hard enough to cause a brief voltage sag on a fresh cell. If the sag crosses the low-voltage cutoff threshold, the pump halts as a safety measure. This is not a fault with the battery — it resolves as the cell conditions through normal use. Before clinical deployment, run at least one full charge-discharge cycle on the bench to reduce initial internal resistance.