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⚠️ Error 07 — High Voltage Cut-Off Protection

Error 07 means the battery is delivering too high a voltage and the controller cut power to protect itself — usually a wrong-voltage pack. Here's how to fix it.

July 12, 20261 min read

⚠️ Error 07 — High Voltage Cut-Off Protection

Bafang 52V Whale Shark ebike battery What it means: The battery is delivering too high a voltage for the system, and the controller has cut power to protect itself. How to fix it:
  • Check your battery voltage. The BBS02 and BBSHD are designed for 48V or 52V packs only. A 48V pack charges to 54.6V full; a 52V pack charges to 58.8V full — both are within range.
  • Make sure you are not using a higher-voltage battery (e.g., a 60V or 72V pack) — that will trigger Error 07 and can damage the controller. Swap to a compatible 48V or 52V pack.
  • If your battery is a correct 48V/52V pack and you still see Error 07 right off the charger, contact support — a faulty pack or BMS can occasionally over-report voltage.
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