The critical battery threshold is not below the low one

The battery failsafe has two steps, low then critical, each with a voltage and a remaining-capacity threshold. When both of a pair are set (not 0), the low one must be the larger: BATT_LOW_VOLT above BATT_CRT_VOLT (“voltage failsafe critical >= low”) and BATT_LOW_MAH above BATT_CRT_MAH (“capacity failsafe critical >= low”). Otherwise the critical step would come first, or both at once.

What to do, most likely first

1. The two values were swapped, or one was changed for a new battery and the other left.

   CheckRead the pair the message names side by side.

   FixSet BATT_CRT_VOLT below BATT_LOW_VOLT and BATT_CRT_MAH below BATT_LOW_MAH. Equal values fail too.

2. The mAh thresholds were read as “mAh used”: they are the mAh that must be left.

   FixMake BATT_LOW_MAH the larger reserve (about a fifth of the capacity is a common choice) and BATT_CRT_MAH a smaller one.

Parameters to look at

Where to do it:Setup & Tuning GuideFailsafe Explainer