Puppy R30 Stick Vacuum Replacement Battery 14.8V 2600mAh

Puppy R30 / R30 Pro / R35 — 14.8V Li-ion Replacement Battery

This 14.8V 2600mAh Li-ion battery replaces the original power cell in the Puppy R30, R30 Pro, and R35 cordless stick vacuums. When the original battery no longer holds charge or suction drops off quickly, this unit restores full motor voltage. Capacity is 2600mAh (38.48Wh), matching the stock specification.

• R30, R30 Pro, and R35 fitment: These three models share the same 14.8V battery bay, connector pinout, and BMS communication protocol — one battery cell pack covers all three without modification.
• Bench tested on actual hardware: We ran this cell through full charge and discharge cycles on the R30 platform. The BMS handshake completed correctly, the motor spun up without triggering an overcurrent trip, and cell balancing held within spec across multiple cycles.
• Dock charging behaviour on the R30 series: Do not leave the vacuum sitting on the charging dock continuously. The R30 series does not interrupt trickle current once full, so permanently docked units develop capacity fade significantly faster. Charge to full and remove the vacuum from the dock.

Suction dropping before the battery indicator reaches low

This is a voltage sag issue, not a capacity issue. When the motor pulls hard — especially on carpet or during a blockage — cell voltage dips below the BMS threshold before the indicator registers low charge. The BMS reads that sag as a protection event and throttles motor power. Check the filter first: a partially blocked filter forces the motor to draw above rated current, which accelerates the sag. Clean or replace the filter, then check whether suction holds at consistent power through a full run.

Motor cuts out mid-clean and then recovers after a few seconds

This is a BMS overcurrent trip, not a dead battery. Sustained restricted airflow — blocked filter, clogged brush roll, or a sealed nozzle — pushes motor draw past the BMS overcurrent limit. The BMS cuts power to protect the cells, then resets once current demand drops. The fix is clearing the restriction, not replacing the battery again. After clearing, verify the battery rests at 16.4V or above on a multimeter before the next run — a cell resting below 14.8V after a full charge indicates a cell that needs replacement.