Panasonic MC-B10P Cordless Vacuum Replacement Battery 9.6V 3000mAh

Panasonic MC-B10P / MC-B20JP Series — 9.6V Ni-MH Replacement Battery (AMV10V-8K)

This is a 9.6V 3000mAh Ni-MH replacement for the Panasonic AMV10V-8K battery pack. It fits the MC-B10P, MC-B20J, MC-B20JP, and related cordless stick vacuum models. Swap it in when the original cell no longer holds enough charge to complete a cleaning session.

• MC-B10P and MC-B20 series fit: These models share the same 9.6V battery bay, connector orientation, and BMS handshake requirements. A single cell design covers all variants in the series without modification.
• Bench tested on actual hardware: We ran this cell through full charge and discharge cycles on the MC-B20JP. The BMS accepted the cell without fault codes, and the motor drew consistent current across both hard floor and carpet test passes.
• Dock charging on this vacuum: The MC-B10P and MC-B20 series dock applies a continuous trickle charge once full. Remove the vacuum from the dock when charging is complete. Leaving it docked permanently accelerates Ni-MH capacity fade faster than regular charge-and-discharge cycling does.

Suction dropping before the battery indicator reaches low

On Ni-MH packs, voltage sag shows up at the motor before the indicator circuit registers a low-battery condition. The vacuum's suction noticeably weakens while the LED still reads mid-charge. This happens because the indicator samples resting voltage, not load voltage. If a partially blocked filter is also present, the motor draws above its rated current, which accelerates the sag further — clean the filter first before diagnosing the battery.

Motor cutting out briefly and then recovering mid-clean

This cut-and-recover pattern is a BMS overcurrent trip, not a dead battery. It triggers when sustained restricted airflow — usually a clogged filter or blocked nozzle — forces the motor to draw above the pack's continuous discharge threshold. The BMS cuts the circuit, the obstruction-related load drops, and the pack resets within seconds. Clear the filter, check the nozzle path, then verify the pack voltage sits above 9.0V at rest before assuming the cell is at fault.