Sichler Reinigungs-Roboter PCR-1350 L 14.4V Ni-MH Replacement Battery

Sichler Reinigungs-Roboter PCR-1350 L / PCR-2350 LX — 14.4V Ni-MH Replacement Battery

This is a 14.4V, 3000mAh Ni-MH replacement battery for the Sichler Reinigungs-Roboter PCR-1350 L, PCR-2350 LX, NC-3337, and NC-3338 cleaning robots. It slots into the original battery bay and connects to the existing BMS contacts. Capacity is rated at 43.2Wh, matching the original specification.

• PCR-1350 L and PCR-2350 LX platform: These models share a common 14.4V battery rail, identical physical housing dimensions (179 × 51 × 52mm), and the same BMS contact layout. A single cell fits all four listed units without modification.
• Bench tested on actual hardware: We cycled this cell through charge and discharge on the PCR-series platform. The BMS accepted the handshake without fault codes, and current draw stayed within rated limits across hard floor and low-pile carpet modes.
• Dock charging discipline: Do not leave this robot sitting on the charging dock permanently. Continuous trickle charge is the fastest way to kill a Ni-MH cell. Charge to full and remove the robot from the dock until the next cleaning session.

Suction dropping before the battery indicator reaches low

On the PCR series, the motor pulls additional current whenever the filter is partially blocked or suction paths are restricted. A degraded Ni-MH cell cannot sustain voltage under that elevated draw, so the motor slows and suction drops — even though the indicator still reads mid-charge. The BMS is not tripping; the cell voltage is simply sagging under load. Clean the filter first, then retest. If suction recovers, the issue was restriction, not the battery.

Motor cutting out mid-clean and then recovering after a few seconds

This is a BMS overcurrent trip, not a power fault. When the PCR robot hits a carpet edge or a blocked intake, suction resistance spikes and the motor draws beyond the rated threshold. The BMS cuts the circuit to protect the cell, then resets once current normalises. If this happens repeatedly, remove and clean the intake path and filter. A cell that was stored fully discharged for an extended period may also trip the BMS on high-draw start — charge fully to 14.4V before the first use after storage.