BobSweep Bob Pro Replacement Battery 14.8V 2600mAh LI-025144-BYD

BobSweep Bob Pro — 14.8V Li-ion Replacement Battery (LI-025144-BYD)

This is a 14.8V, 2600mAh Li-ion replacement battery for the BobSweep Bob Pro robotic vacuum (model SJP110020). It replaces OEM part LI-025144-BYD directly. When the original cell degrades and the Bob Pro stops holding charge or fails to complete cleaning cycles, this is the unit to swap in.

• Bob Pro and SJP110020 platform: Both model references share the same 14.8V four-cell Li-ion pack architecture, the same dock-side charging connector, and the same BMS handshake protocol — which is why one battery covers both designations.
• Bench tested on actual hardware: We ran this battery through full charge and discharge cycles on the Bob Pro platform. The BMS communicated correctly with the dock charger, accepted a full charge without faults, and the protection circuit tripped at the expected low-voltage cutoff rather than allowing cell damage.
• Dock charging behaviour on the Bob Pro: Do not leave the Bob Pro sitting on its dock permanently. Continuous trickle charging through the dock degrades Li-ion cell capacity significantly faster than charging only when the battery is depleted. Charge to full, then remove the unit from the dock until the next cycle.

Suction dropping before the battery indicator reaches low

The Bob Pro's motor draws more current when the filter is partially blocked or the brush roll is restricted. That elevated draw causes voltage to sag across the battery cells before the indicator registers a low state. The BMS reads cell voltage, not remaining capacity — so the display still shows adequate charge while motor performance has already fallen. Clean the filter and clear the brush roll before concluding the battery is the cause.

Motor cutting out mid-cycle and then recovering after a pause

This is an overcurrent trip, not a dead battery. When sustained suction restriction — usually a clogged filter or a blocked intake — forces the motor to draw above the BMS overcurrent threshold, the protection circuit opens and cuts power. After a short pause, the BMS resets and the unit restarts. The fix is to clear the restriction, not replace the battery. If the trip keeps recurring on a clean filter, check cell voltage under load — a reading below 13.5V while running points to a worn cell pack rather than a blockage.