Kyvol Cybovac E20 Replacement Battery 14.4V 2600mAh

Kyvol Cybovac E20 / E30 / E31 — 14.4V Li-ion Replacement Battery (INR-32E-4S1P)

This is a 14.4V Li-ion replacement battery for the Kyvol Cybovac E20, E30, and E31 robotic vacuum cleaners. It uses OEM part number INR-32E-4S1P and delivers 2600mAh (37.44Wh). When the original pack degrades after repeated charge cycles, this swap restores the vacuum's motor and navigation systems to full operating capacity.

• E20 / E30 / E31 compatibility: All three models share the same 14.4V battery bay, connector pinout, and BMS handshake protocol. The cell configuration — four INR cells in series, one in parallel — matches the voltage rail each model's motor controller expects on startup.
• Bench tested on actual hardware: We ran this pack through charge and discharge cycles on the E20 platform. The BMS responded correctly to the charger handshake, held voltage within spec under motor load, and triggered protection cutoff cleanly at the low-cell threshold.
• Dock charging habit on the E20 series: Do not leave the Cybovac sitting on the dock continuously between cleans. These models do not cut dock power once full, and sustained trickle input accelerates cell degradation. Charge to full, then remove from the dock until the next clean cycle.

Suction dropping before the battery indicator reaches low

On the E20 and E30, suction loss well before the low-battery alert usually means the motor is drawing more current than the cell can deliver at that state of charge — a voltage sag under load, not a capacity failure. A partially blocked filter forces the motor to work harder, pulling current that pushes the BMS toward its overcurrent threshold. The pack then reduces output to protect the cells, and suction drops as a result. Clean or replace the filter first, then retest — if suction holds across a full cycle, the filter was the cause, not the battery.

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

This is a BMS overcurrent trip, not a fault with the battery cells themselves. When the vacuum encounters a blockage or runs on thick carpet with a restricted filter, the motor current spikes above the BMS protection threshold and the pack interrupts output briefly. The BMS resets automatically once current normalises, which is why the motor recovers within seconds. Clear any blockage at the brush roll and inlet, check the filter, and confirm the behaviour stops — if it continues on a clean machine, measure resting pack voltage, which should read above 16.0V when fully charged.