Liectroux DH860 Replacement Battery 14.8V 2600mAh

Liectroux DH860 / Q7000 / Q8000 / ZK808 — 14.8V Li-ion Replacement Battery

This is a 14.8V 2600mAh (38.48Wh) lithium-ion battery for Liectroux robotic vacuum cleaners including the DH860, Q7000, Q8000, and ZK808. It powers the suction motor and navigation systems. Fit the same physical footprint and connector as the original cell.

• DH860 / Q7000 / Q8000 / ZK808 compatibility: These Liectroux models share the same 14.8V four-cell Li-ion architecture, connector pinout, and BMS communication protocol. One battery fits all of them because the charging circuit and voltage thresholds are identical across the range.
• Bench tested on actual hardware: We ran this battery through full charge and discharge cycles on a Liectroux unit. The BMS responded correctly to charge termination, cell balancing, and overcurrent cutoff events at the motor start surge. No false trips during normal cleaning operation.
• Dock charging habit for robotic vacuums: Do not leave the vacuum sitting on the dock continuously between cleans. Liectroux robotic vacuums on permanent dock contact receive a low-level trickle that accelerates cell degradation. Charge to full, then remove from the dock until the next clean.

Suction dropping before the battery indicator reaches low

This happens when the motor draws more current than the battery can sustain at its current state of health — or when the filter is partially blocked. A restricted filter forces the motor to work harder, pulling current above the BMS's rated threshold. The BMS throttles power to protect the cells, which the vacuum interprets as a low-battery condition. Clean or replace the filter first, then retest under the same floor conditions.

Motor cuts out briefly then recovers mid-clean

This is a BMS overcurrent trip, not a dead battery. It happens when sustained suction restriction — usually a clogged filter or brush roll jam — pushes motor current past the cutoff point. The BMS disconnects, the motor stops, and then reconnects once current normalises. Clear the brush roll and filter, and check that the suction path has no hard blockage. If the trips continue on an unblocked vacuum, the original battery's BMS is degraded — this replacement cell resets that behaviour.