I have a 2006 Attitude 25 AK (purchased used) 30 amp system I recently replaced the original converter charger with an Iota 45 amp and installed two 100 AH AGM batteries I also installed a battery monitor. All this thinking I would get higher amperage going to the batteries when they were low which did occur for a very short time 22 amps then nothing. After my solar brought the batteries up some the system showed 6-8 amp charging. I suffered thru the winter months then decided to upgrade. I purchased 2 100 ah lithium batteries (not Battle Born too expensive)and replaced the converter charger with Progressive Dynamics 30 amp lithium converter charger and wouldn't you know it had the same problem intermittent charging usually with lower amperage. All 12v and 110v systems work fine with shore power, generator , and 12v when others are unplugged or shut down. Anyone have any ideas as to the cause ??