I am using 8 Battle Born lithium batts. and a Magnum 2812 inverter with auto Gen start adaptor and battery management kit and new control hard wired in house. and Li Bim talked about below to save alternator. 8 batts. can draw 110 or so amps on shore power but seems to be ok for the last year or so. For my 2002 system conversion I was finally lead to M&M RV Electronics. They are really good at this older stuff. Chris is the man! www.mmrvelectronics.com
The problem on the system can be over taxing the battery charging alternator on the engine while long distance driving. In my case, the Lithium battery bank for solar panels is so large, it can pull way more energy/amps than the alternator can supply on a single steady charge so, something has to be installed to keep from cooking the alternator and that is an isolator of some sort. I installed a Li-bim (Lithium battery isolator manager) in place of the old isolator system components. Basically what it does is allow charging of house Lithiums, chassis lead acid batteries and then gives the alternator a rest (Cooling) these generally operate on a timing system rotating among all 3 stages while you drive. To be clear, I removed 3 major original pieces, charging 3 wire brick (trickle charge chassis batt. maintainer). (Isolator delay relay delay Diesel) And battery isolator relay. LiBim replaced battery isolator relay. My point is: All of these orignal components work well for lead acid or agm batts. Also including shore power charging. (All components are needed obviously). One more thing, I have found that many of the small black relays on the coach system are the same and available at places like Amazon. You have to look for small print.
Hope this helps