Quote Originally Posted by the evil twin View Post
however the BCDC can't charge at 40 amps on Solar
Ummmm, yes it can

Quote Originally Posted by the evil twin View Post
A lot of deep cycle batteries also cannot handle high charge current so again check the manuf spec


I don’t really understand this. I know that there are recommendations of charging amps, generally around 10% of the battery’s capacity in amp hours, but if the battery is being ‘well looked after’ it will generally be getting charged before it is ‘over discharged’ & consequently the battery will only accept a lower charge rate regardless of the capability of the charger. The BCDC won’t force 40 amps into a battery any more than straight alternator charging would.