Proscenic LDS M7 Pro 14.4V Replacement Battery 6700mAh

Proscenic LDS M7 Pro / M7 Max Series — 14.4V Li-ion Replacement Battery (NR18650 M26-4S2P)

This is a 14.4V, 6700mAh lithium-ion replacement battery for the Proscenic LDS M7 Pro, M6, M7 LDS, M7 Max, and compatible models. It powers both the cleaning motor and the onboard LDS navigation system. Capacity figures come from the product spec — 96.48Wh total stored energy.

• LDS M7 Pro / M6 / M7 Max platform fit: These models share the same 14.4V battery rail, connector pinout, and BMS communication protocol. One cell pack covers the full compatible range without modification.
• Bench tested on actual hardware: We cycled this pack on the M7 Pro through full discharge and recharge sequences. The BMS handshake completed correctly, and overcurrent protection triggered as expected under a simulated motor blockage load.
• Dock charging habit on robot vacuums: Do not leave the M7 Pro sitting on the dock permanently between uses. Continuous trickle charging causes lithium cell capacity to degrade faster than normal cycle use. Charge to full, then remove the unit from the dock until the next scheduled run.

Suction dropping before the battery indicator reaches low

The M7 Pro's motor draws significantly more current when the filter is partially blocked or the dustbin is full. That elevated draw causes voltage to sag at the cell level, and the BMS interprets it as a low-charge condition before the actual state of charge warrants it. The motor throttles back to protect the cells, and suction falls off noticeably. Clean the filter and empty the bin — if suction recovers immediately, the battery is not the cause.

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

This is a BMS overcurrent trip, not a dead battery. When the M7 Pro drives into heavy carpet or encounters a partial blockage, current draw spikes beyond the BMS threshold and the pack shuts output off momentarily. The BMS resets itself once current drops, which is why the motor restarts without you touching anything. Check the brush roll for hair wrap and confirm the filter is clean — sustained restriction is the trigger. If trips continue with a clear filter, measure pack voltage under load; a healthy pack at mid-charge should hold above 13.0V.