360 S5 Cordless Vacuum Replacement Battery 14.4V 2600mAh

360 S5 / S7 Pro / T90 — 14.4V Li-ion Replacement Battery

This is a 14.4V 2600mAh Li-ion replacement battery for the 360 S5, S7 Pro, and T90 cordless stick vacuums. It slots into the same battery bay as the original pack and restores power to the motor and suction head. Capacity figures are taken directly from the product specification — 37.44Wh total energy.

• S5, S7 Pro, and T90 platform fit: These three models share the same 14.4V battery rail, connector pinout, and BMS communication protocol, which is why one pack covers all three. Swapping between models does not require any adapter or firmware change.
• Bench tested on actual hardware: We ran this pack through charge and discharge cycles on a 360 S5 unit. The BMS responded correctly to motor-start current draw, held voltage under sustained suction load, and tripped overcurrent protection at the expected threshold without false cutoffs.
• Dock charging habit for S-series vacuums: Do not leave the vacuum sitting on the charging dock continuously between uses. Cordless vacs on permanent dock charge accumulate trickle-charge stress on each cell. Charge to full, then remove from the dock until the next use.

Suction dropping before the battery indicator reaches low

This happens when the motor draws more current than rated because the filter is partially blocked. The battery pack sees a sustained overcurrent condition and the BMS throttles output voltage to protect the cells — suction drops even though the indicator still shows charge remaining. The indicator reads state-of-charge, not available current. Clean or replace the filter first, then retest suction at full charge.

Motor cuts out mid-run then recovers after a few seconds

This is a BMS overcurrent trip, not a dead battery. When the vacuum runs over thick carpet or hits a blockage, motor resistance spikes and current draw surges past the BMS cutoff threshold. The BMS disconnects the pack, waits for the fault to clear, then reconnects — which is what the brief recovery feels like. Check the brush roll for hair wrap and clear the filter. If the problem persists after cleaning, verify pack voltage under load sits above 12.0V with a multimeter.