Yo I have Mppt and DC-DC charger on my campervan when the van is running the dc charger kicks in and gose up to 14v but the batter read out on the MPPT does not change can I ask why this is?
2 things to check.
- The fuse on the bottom of the unit by the terminals, has this blown.
- Have you got a poor connection, get a multimeter and measure the voltage at the terminals, check for loose connections, wire breaks and if you have a resettable breaker check that, the ones shown below have a reputation for poor connection.
Amazing will have look at what you have said I’ve got the use onice the done fuese but alway keep spar on me.
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