Amibot PURE H20 Replacement Battery 14.4V 2000mAh

Amibot PURE H20 / Pure / Pulse / Prime — 14.4V Ni-MH Replacement Battery

This is a 14.4V, 2000mAh Ni-MH replacement battery for the Amibot PURE H20, Pure, Pulse, and Prime robotic vacuum cleaners. It replaces the original cell when the vacuum can no longer complete a full cleaning cycle on a single charge. Capacity is 2000mAh (28.8Wh), matching the factory specification.

• PURE H20, Pure, Pulse, and Prime compatibility: These four models share the same 14.4V battery platform, connector pinout, and BMS handshake requirements. Swapping between them uses the same cell — voltage rail and physical dimensions are consistent across the range.
• Bench tested on actual hardware: We ran charge and discharge cycles through the BMS on the PURE H20 dock. The protection circuit responded correctly to full-charge cutoff and low-voltage stop events. No false trips under normal suction load.
• Dock charging discipline: Do not leave the Amibot on the dock permanently between uses. Ni-MH cells in robotic vacuums develop capacity fade faster under continuous trickle charge than under regular full-charge-then-remove cycles. Charge to full, then lift the unit off the dock.

Suction dropping before the battery indicator reaches low

This is a voltage sag issue, not a capacity issue. When the motor draws sustained current against a restriction — a partially blocked filter or brush roll tangle — the cell voltage dips below the threshold the BMS uses to maintain full motor speed. The vacuum reduces suction to protect the cell before the indicator registers low. Clean the filter and check the brush roll first. If sag persists on a clean vacuum, the cell has lost internal capacity and needs replacing.

Motor cutting out mid-cycle then recovering after a pause

This is a BMS overcurrent trip, not a motor fault. The protection circuit cuts power when sustained current draw exceeds the safe threshold — most often triggered by a blocked filter forcing the motor to work harder than rated. The recovery after a pause happens because the BMS resets once current demand drops. Clear the filter and check for brush roll obstructions before assuming the battery is faulty. If the trip occurs on a clean, unobstructed vacuum, confirm cell voltage under load sits above 12.0V.