Enphase › battery management system (BMS)
Battery charges from grid despite charging disabled
reported more than once
Symptoms
- A battery charges from the grid overnight despite grid charging being disabled
- Stops auto-recharging once it reaches its 5% reserve floor, exporting the surplus solar instead
- A 'AI Optimization' profile update stops full nightly discharge, leaving more charge unused than before the update
- A small amount of export appears before the battery reaches full charge, a change from prior behaviour
- A stuck, never-completed gateway software update silently blocks a charge-from-grid-before-peak schedule that had worked for years
- A CT polarity-reversal correction silently reverts itself overnight
The cause and the fix
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