How do I fix BMS Master/Slave Unmatch on a SolaX?

Check module DIP switch addressing (each module needs a unique address). Then: Upgrade the battery BMS firmware.

SolaX

BE 21

BMS Master/Slave Unmatch

Master/slave control mismatch in stacked battery system.

Common causes

Module DIP addressing wrongOutdated BMS firmware

What to check

STEP 1

Check module DIP switch addressing (each module needs a unique address).

STEP 2

Upgrade the battery BMS firmware.

Escalate if

Persistent after checks

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