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Informational· MBB / BMS log file

Regen Limited

Regenerative braking reduced or disabled

Battery/BMSSource: BMSLog file condition
Last updated: July 30, 2026

What it means

Regenerative braking reduced or disabled

InformationalNormal operation events, no action required.

Likely causes

  • Battery near 100% SOC
  • Battery temperature outside optimal range
  • Cell voltage near maximum

What to do

  1. 1Normal behavior when pack is full
  2. 2Use friction brakes as needed
  3. 3Will restore as SOC decreases

Which bikes use this table

Recorded in the binary log rather than shown on the dash — every generation writes them.

Questions

What does "Regen Limited" mean in a Zero log?

Regenerative braking reduced or disabled. It is written by the BMS. It is classed as informational: normal operation events, no action required.

What should I do about it?

Normal behavior when pack is full. Use friction brakes as needed. Will restore as SOC decreases.

See when this actually happened on your bike

A dash code tells you the fault; the log tells you the pack temperature, the state of charge and the ten minutes leading up to it.

Upload a log

Community reference: ZeroManual wiki entry

The code and its name are transcribed from Zero's own owner manuals; the severity, category and troubleshooting notes are ours. For official diagnostics, consult an authorized Zero Motorcycles dealer.