Ecovacs Deebot CR110 Replacement Battery 12V 800mAh

Ecovacs Deebot CR110 — 12V Ni-MH Replacement Battery (NR49AA800P12V)

This is a 12V 800mAh Ni-MH battery for the Ecovacs Deebot CR110 robotic vacuum cleaner. It also fits the Deebot CR112, CEN30, and TCR03A. The battery powers the drive motors and suction mechanism that keep the robot cleaning.

• CR110 / CR112 / CEN30 / TCR03A platform: These models share the same 12V power rail, connector orientation, and cell pack dimensions. One battery format covers all four units without modification.
• Bench tested on actual hardware: We cycled this cell pack through full charge and discharge on the CR110 platform. The BMS accepted charge without fault flags and held voltage within spec under sustained motor load.
• Dock charging habit on robotic vacuums: Ni-MH cells in always-docked robots receive a continuous trickle that accelerates capacity loss. Charge the unit fully, then lift it off the dock until the next scheduled clean cycle.

Suction dropping before the battery indicator reaches low

Ni-MH packs in robotic vacuums show voltage sag under motor load well before the charge indicator trips. When the suction motor is working harder — against a clogged filter or dense carpet — it draws more current, and cell voltage dips below the threshold the motor controller needs to maintain full fan speed. The result is audible suction loss while the robot still reports adequate charge. Clearing the filter and side brushes reduces motor draw and keeps voltage above the sag point long enough to complete a full run.

Motor cutting out mid-cycle and then recovering on its own

This is a BMS overcurrent trip, not a dead battery. When airflow is restricted — blocked intake port or saturated filter — the suction motor pulls sustained high current, and the BMS cuts the circuit to protect the cells. The robot pauses, the BMS resets after a few seconds, and the unit restarts. If the cycle repeats, the filter is the cause, not the battery. Clean or replace the filter, then confirm the intake path is clear before running again.