Replaced batteries and starter same problem. Bought 2 more new batteries same problem. Put in all new coach batteries as well. Coach plugged in to dedicated 50 amp circuit when not in use. Also has 2 amp trickle charger in coach for chassis batteries.
Put in 2 new batteries plus new starter and same problem. Took new batteries out put in 2 more new batteries and same problem.
When coach not in use plugged in to 50 amp dedicated circuit. Also, has 2 amp trickle charger on board coach.
Replaced batteries and starter still turns over very slow. At times have to put on charger to get started.
Volt meter reads 14.5 before starting and after drops to about 12V.