I have an Orion tr smart.
It's wired via dual 6mm cable to an Anderson plug on my Isuzu. Then is connected along with an MPPT to a lithium battery bank.
When I connect the DCDC tr smart, it turns on, the Bluetooth light starts flashing and I can connect to the unit.
It will come on to charge for a few seconds and then drop out, the input voltage drops to around 6 volts.
it will then go back up to 13.8v at input input and charges the bank.. then after a few seconds will drop down to 6 volts again... the cycle repeats.
Any help would be appreciated
I have run a separate twin core cable directly connected to the battery in the car and straight into the Orion smart, therefore eliminating cable issues run in the van and car.. and still same problems.
Have bench tested the unit and seems to work ok.
I am wondering Would I need to add another earth from the car chassis to the negative bussbar in the van ? or is the twin core ok?