Dual battery set-up on my defender - starter battery connected to alternator and the Cyrix.
Auxilliary battery connected to Cyrix. Used to work fine and then from yesterday, continuously 0.25s blinking LED, even when I disconnect the AUX battery from the Cyrix which is weird.
Any suggestion or has the Cyrix developed a fault?
Main battery is at 14.41v and Aux is showing 12.76v