Evolveo Robotrex H5 14.4V Compatible Battery 2600mAh

Evolveo Robotrex H5 / RoboTrex H6 — 14.4V Li-ion Replacement Battery

This 14.4V 2600mAh lithium-ion battery fits the Evolveo Robotrex H5 and RoboTrex H6 robot vacuum cleaners. It replaces the original cell when capacity fade has reduced cleaning coverage per charge. Voltage and connector match the original spec — no modification needed.

• Robotrex H5 and RoboTrex H6 fit: Both models run the same 14.4V architecture and use an identical battery bay and connector layout. The BMS handshake requirements are consistent across the H5 and H6 variants, so one cell covers both.
• Bench tested on actual hardware: We ran charge and discharge cycles on this cell, monitoring BMS cutoff points and charge acceptance. The protection circuit responded correctly at both low-voltage cutoff and full-charge termination with no anomalies.
• Dock charging habit on the Robotrex H5: Do not leave this vacuum sitting on its charging contacts continuously between cleans. Robot vacuums on permanent dock charge trickle the cell constantly, which accelerates capacity fade in Li-ion cells. Charge to full, then remove from the dock until the next cleaning run.

Suction dropping before the battery indicator reaches low on the Robotrex H5

This happens when the motor draws more current than the cell can cleanly deliver under load — voltage sags even though the indicator still shows charge remaining. A partially blocked filter is the most common trigger: restricted airflow forces the motor to work harder, pulling higher current and collapsing cell voltage faster. Clean the filter first and check that the dustbin is empty before blaming the battery. If suction still drops early, check resting cell voltage after a full charge — it should read at least 16.4V off the charger.

Motor cuts out mid-clean then recovers after a short pause

This is a BMS overcurrent trip, not a dead battery. When suction is blocked — usually a jammed brush roll, compacted dustbin, or clogged filter — the motor sustains a high-draw stall that pushes current past the BMS protection threshold, and the circuit opens to protect the cell. The BMS resets after a brief cooldown, which is why the vacuum restarts on its own. Clear the blockage, check the brush roll for wrapped hair, and verify the filter is clean before running the vacuum again.