BobSweep bObi Classic Replacement Battery 14.4V 3000mAh

BobSweep bObi Classic / bObi Pet — 14.4V Ni-MH Replacement Battery

This is a 14.4V, 3000mAh Ni-MH replacement battery for the BobSweep bObi Classic and bObi Pet robotic vacuum cleaners. It fits models including 017144-TN and BQBS1000. Swap it in when the original cell no longer holds a charge or the robot shuts down mid-cycle.

• bObi Classic and bObi Pet compatibility: Both models run on the same 14.4V power rail, share the same battery bay dimensions, and use the same connector pinout — one cell covers both platforms without modification.
• Bench tested on actual hardware: We cycled this cell on a bObi platform and confirmed the BMS accepted the handshake on first connection, held voltage through a full cleaning cycle, and tripped cleanly on overcurrent without requiring a manual reset.
• Dock charging discipline on robotic vacuums: Do not leave the bObi sitting on the charging dock permanently. Continuous trickle charging on Ni-MH cells accelerates capacity fade faster than normal cycling. Charge the robot to full, then remove it from the dock until the next scheduled clean.

Suction dropping before the battery indicator reaches low

On the bObi, suction loss often happens well before the battery LED signals low charge. The motor draws harder when the filter is partially blocked, pulling more current than the cell is rated to deliver at that state of charge. Voltage sags under that elevated load, and the motor loses speed — but the indicator reads voltage at rest, not under load, so it still shows green. Clean or replace the filter first, then retest. If suction holds after that, the cell was not the root cause.

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

This is a BMS overcurrent trip, not a dead battery. When the bObi transitions from hard floor to carpet, suction restriction spikes current draw sharply. If the filter is clogged, that spike exceeds the BMS threshold and the pack shuts output off momentarily. The robot pauses, current drops, and the BMS resets automatically — which looks like the unit "recovered." Check the filter and the brush roll for hair wrap. Clear both, then run the robot again; if the cutout stops, the restriction was the cause, not the cell.