Pyle PUCRC25 Robotic Vacuum Replacement Battery 14.4V 1800mAh

Pyle PUCRC25 Series — 14.4V Ni-MH Replacement Battery (PRTPUCRC25BAT)

This is a 14.4V, 1800mAh Ni-MH replacement battery for the Pyle PUCRC25, PUCRC25.5, PUCRC25.9, and PUCRC26B robotic vacuum cleaners. It restores power to the drive motors and suction system after the original cell degrades. Capacity is matched to the factory spec at 1800mAh (25.92Wh).

• PUCRC25 series compatibility: The PUCRC25, PUCRC25.5, PUCRC25.9, and PUCRC26B all run the same 14.4V battery rail and share the same connector and BMS handshake profile, which is why one cell covers the whole platform.
• Bench tested on actual hardware: We cycled this cell through full charge and discharge sequences on the PUCRC25 platform. The BMS accepted the cell without error flags, and the drive and suction motors reached normal operating speed from a standing start.
• Dock charging behaviour on Ni-MH cells: Do not leave the PUCRC25 on the charging dock permanently. Ni-MH cells are more vulnerable to trickle-charge heat damage than Li-ion. Charge to full, then remove the unit from the dock until the next cleaning cycle.

Suction dropping before the battery indicator reaches low

Ni-MH cells suffer voltage sag under sustained motor load before the pack voltage has actually reached the low-battery threshold. On the PUCRC25, a partially blocked filter forces the motor to draw above its rated current, which accelerates that voltage sag. The vacuum's indicator reads a charge level based on resting voltage, not load voltage, so the warning arrives late. Clean the filter first — if suction recovers, the battery is not the cause.

Motor cuts out mid-cycle then restarts on its own

This is a BMS overcurrent trip, not a dead battery. When suction is restricted — blocked brush roll, clogged filter, or hair wrap — the motor pulls sustained current above the BMS trip threshold and the pack shuts down briefly to protect the cells. The BMS resets after a few seconds once current drops, so the vacuum restarts. Clear the blockage, then check that pack voltage reads at least 15.5V fully charged before assuming the battery is at fault.