Originally Posted by AKBradley
Looks like a great product.
Do you have a wiring diagram?
What voltage is it charging at or is it variable?
What current is it charging at is it automatically controlled?
When you pull your rig out of storage do you fully charge the house batteries disconnected? Or do you let the on board charger recharge before using?
I am using type 27 AGM, am considering purchasing a new charger, Ctek US 7200,
to charge and maintain while in storage.
I think you mean a 7002 vs a 7200.
Do you mean 4X group 27 AGM's or just one?
7002's max AH size is 150 and I think 4 group 27 are likely to exceed that.
In storage - I never use the on board charger, but rely on smaller smart chargers on both house and chassis bank.
I put a ctek 2500 on my 350AH house bank. it has a temp sensor built into the positive terminal, and Ive got an optimate 6 on the chassis bank.
I have a 7002 babysitting my toy haulers 2x group 27's.
Back to OP I think the diode is a likely culprit.