ROBOT RBC003 Cordless Vacuum Replacement Battery 14.4V 2000mAh

ROBOT RBC003 / RBC006 / RBC009 / RBC011 — 14.4V Ni-MH Replacement Battery

This is a 14.4V 2000mAh Ni-MH battery pack for ROBOT robotic vacuum cleaners. It fits the RBC003, RBC006, RBC009, and RBC011 models, plus one additional variant in the same series. The pack slots into the original battery bay and connects to the same charging and motor circuits as the factory unit.

• RBC series compatibility: The RBC003, RBC006, RBC009, and RBC011 all run the same 14.4V drive rail with an identical battery bay footprint — 91.91 × 67.35 × 44.58mm. The motor controller and charging circuit treat them identically, so one pack covers the full lineup without modification.
• Bench tested on actual hardware: We ran this pack through charge and discharge cycles on the RBC series motor circuit. The BMS held steady under the sustained current draw of carpet-cleaning passes and did not trip on normal suction loads.
• Dock charging habit: Do not leave the vacuum sitting on the charging dock between uses. Ni-MH cells in continuous trickle charge degrade faster than cells charged only when depleted. Charge to full, then remove the unit from the dock until the next use.

Suction dropping before the battery indicator shows low

Ni-MH packs deliver voltage that sags under load before the cell is actually depleted. When the RBC series motor draws hard against a blockage or a clogged filter, internal resistance rises and voltage at the motor drops — suction falls even though the indicator still reads mid-charge. The battery is not failing; the filter or suction path is forcing the motor to work harder than rated draw. Clear the filter and check the brush roller before assuming the pack is at fault.

Motor cuts out mid-run then recovers after a short pause

This is a BMS overcurrent trip, not a dead battery. When suction is restricted — blocked filter, tangled brush roller, or a rug jamming the intake — current draw spikes past the BMS threshold and the pack shuts the output to protect the cells. After a brief rest the BMS resets and the motor runs again. Fix the restriction first. If cutouts continue on a clear filter, check that pack voltage at rest reads above 12.0V after a full charge cycle.