About this replacement
BobSweep APP220022 / Bob PetHair Appetite — 14.4V Li-ion Replacement Battery (H18650CH-2600-4S1P)
This is a 14.4V, 2600mAh lithium-ion battery pack for the BobSweep APP220022 and Bob PetHair Appetite robotic vacuum. It slots into the same bay as the original pack and uses a 4S1P cell configuration. The OEM part number is H18650CH-2600-4S1P.
- APP220022 and Bob PetHair Appetite compatibility: Both models share the same 14.4V power rail, battery bay dimensions, and BMS handshake protocol. The connector pinout and cell voltage range are identical across this platform, so one pack covers both units.
- Bench tested on actual hardware: We ran this pack through full charge and discharge cycles on a BobSweep platform. The BMS held the 4S cell balance within spec, and the overcurrent protection tripped correctly when we simulated a blocked brush roll — then reset cleanly once the load cleared.
- Dock charging habit for this robot: Do not leave the BobSweep sitting on its charging dock between every run. Robotic vacuums on permanent dock contact trickle-charge continuously, which accelerates capacity fade in Li-ion cells. Charge to full, then remove the dock connection until the next scheduled clean.
Suction dropping before the battery indicator reaches low
The BobSweep motor draws significantly more current when the filter is partially blocked or the brush roll is tangled with pet hair. At 14.4V nominal, even moderate restriction pushes draw past the BMS overcurrent threshold, causing the motor to throttle back while the battery gauge still reads mid-range. The indicator measures cell voltage, not motor load — so the gauge looks fine while suction has already fallen. Clean the filter and clear the brush roll first; if suction recovers immediately, the battery was not the fault.
Robot cuts out mid-cycle and then restarts on its own
This is a BMS overcurrent trip, not a dead battery. When the brush roll jams against debris or carpet fibres, current spikes sharply and the protection circuit opens the output to prevent cell damage. The BMS resets automatically once the load drops — typically within a few seconds — which is why the unit appears to recover on its own. Check the brush roll for wrapped hair and confirm the side brushes spin freely; sustained trips on a clear brush roll at 14.4V indicate a degraded cell that can no longer deliver peak current without sagging below the cutoff threshold.