About this replacement
Xiaomi M365 / M365 Pro Series — 36V Li-ion Replacement Battery (NE1003-H)
This is a 36V 7800mAh (280.8Wh) Li-ion battery for the Xiaomi M365 electric scooter and its close variants. It fits the M365, 1S, M365 Pro, and M365 Pro Smart Foldable. The NE1003-H form factor slots into the scooter's deck compartment and connects to the stock BMS and motor controller.
- M365 and Pro series compatibility: The M365, 1S, and both Pro variants share the same 36V deck-mount battery rail and connector pinout. The BMS handshake protocol is identical across these models, so the controller accepts this pack without firmware or wiring changes.
- Bench tested on actual hardware: We ran this pack through charge and discharge cycles on an M365 deck. The BMS balanced cells correctly, held cutoff at the expected low-voltage threshold, and reported state of charge accurately through the Xiaomi app connection.
- Cold-weather charge handling: After winter storage, charge this battery slowly before the first ride. Cold Li-ion cells carry higher internal resistance, and fast charging below 10°C causes lithium plating on the anode that permanently reduces capacity. Let the scooter and battery warm to room temperature first.
BMS cutting out during hill starts on a new pack
Hill starts pull peak current from the battery in a fraction of a second. On the M365, that surge can exceed 15A — high enough to trip the BMS overcurrent protection, especially when the pack is below 30% state of charge. A new battery does not eliminate this if the cell voltage is already low from shipping storage. Charge the pack to full before the first hill ride and the BMS threshold will have more headroom to absorb the start surge.
Charger LED stays green immediately — pack not accepting charge after storage
If the charger shows green within seconds of plugging in, the pack voltage has likely dropped below the charger's acceptance threshold — typically under 30V on a 36V system. The charger reads this as a full pack rather than a dead one. Some M365 chargers include a recovery mode: unplug, wait 30 seconds, then reconnect and hold the charge port connected for 60 seconds before the charger negotiates voltage. If the pack accepts trickle current, it will begin a normal charge cycle once cells rise above 30V.