BMS for Xiaomi 7.8Ah Battery

BMS for Xiaomi Electric Scooter Batteries

This BMS is designed for Xiaomi 36 V batteries with 7.8 Ah capacity.

Why Is My Electric Scooter Battery Not Working?

Does your scooter no longer turn on or have a much shorter range than when it was new?

Common causes of battery malfunctions include:

• Prolonged non-use or improper storage of the battery
• Overloading the scooter or battery
• Short circuit or water damage
• Faulty BMS (Battery Management System)
• Use of an incorrect charger
• Physical damage from a fall
• Cold weather

If your scooter doesn’t turn on, the battery might not be the only issue—other components could be affected, and the battery may have only a partial fault. We offer professional fault diagnosis and battery health testing to identify the actual issue and recommend the most cost-effective solution. Certain batteries can also be refurbished through our authorized partner.

Note: In cold weather, battery range can drop by up to 40 %, resulting in shorter ride times. This is normal, and range will improve as temperatures rise.

How to Store an Electric Scooter Battery in Winter

For a long battery life, keep it active. If you won’t use your scooter for an extended period, charge the battery for at least 15 minutes once a month—discharging isn’t necessary. Li-ion batteries are least stable while charging or when fully charged. For storage, maintain a charge level between 40 % and 60 % capacity. At this level, batteries remain safe and undamaged. If they drop below 20 % charge, long-term capacity loss can occur.

Service Information

For proper replacement of the BMS or any battery inspection, please contact your nearest service center in our network. A regular service check is recommended at least once a year, or immediately if any irregularities appear. This ensures safe riding and a long lifespan for your scooter.

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