Ecovacs TCR360 Replacement Battery 10.8V 2600mAh ZJ1450

Ecovacs TCR360 / D36 Series — 10.8V Li-ion Replacement Battery (ZJ1450)

This 10.8V 2600mAh Li-ion battery replaces the ZJ1450 cell in the Ecovacs Deebot TCR360 robotic vacuum. It also fits the D36A, D36B, and D36C variants that share the same battery bay and connector. Capacity figure is taken from product data: 2600mAh / 28.08Wh.

• TCR360 and D36 series fit: These models share an identical 10.8V three-cell Li-ion architecture, the same physical bay dimensions, and the same BMS handshake protocol — one battery covers all of them without modification.
• Bench tested on actual hardware: We ran this cell through a full charge cycle on a TCR360 dock and monitored BMS communication. The protection circuit responded correctly to end-of-charge, over-discharge cutoff, and reconnect events without fault codes.
• Dock charging practice for the TCR360: Do not leave the TCR360 sitting on its dock continuously between cleaning sessions. Persistent trickle charge after a full state-of-charge accelerates capacity fade in these small-format Li-ion packs — charge to full, then remove the robot from the dock until the next use.

Suction dropping before the battery indicator reaches low

The TCR360's suction motor draws current in proportion to the restriction it works against. A partially blocked filter or tangled brush roll forces the motor to pull more amps than rated, dragging cell voltage down prematurely. The BMS reads this voltage sag and the robot's firmware interprets it as a low-battery state — even though capacity remains. Clean the filter and clear the brush roll before suspecting the battery. If suction stabilises after cleaning, the cell was fine; if sag continues on a clean path, the pack has degraded past its usable discharge curve.

Motor cuts out mid-clean then recovers after a pause

This is a BMS overcurrent trip, not a mechanical fault. When sustained suction restriction forces motor draw above the pack's continuous current rating, the protection circuit opens and cuts power — typically for 5 to 15 seconds — before resetting. The robot restarts because the BMS self-resets once current demand drops. Check the filter first: a clogged filter is the single most common trigger. If trips continue on a clean filter with a new battery, verify the charger output is within spec — an undercharged cell at low state-of-charge has a higher internal resistance and trips the overcurrent threshold sooner, typically below 9.5V under load.