When installing a new SUN-BATT battery if you are combining a newer model with an older model the newer model MUST be installed as the master battery for communications to work.
The newer model SUN-BATT series can be identified by:
An additional red ON/OFF slider switch.
A port for a datalogger connection.
Connecting these with old-style SUN-BATT batteries as the master and new-style SUN-BATT batteries as the slave can cause communication and performance issues.
The red slider switch on the batteries acts as a BM reset – please ensure this is in the ON position for operation.
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