fagnaml Report post Posted October 4, 2018 Earlier this week there was a question on the Damon owners forum on IRV2.com about whether or not the converter provides a trickle charge to the engine (chassis) batteries. No one on that forum, including me, could provide an answer. The attached electrical diagram from my owner's manual shows the converter, coach batteries, "automotive" (i.e. chassis) battery, gen-set, etc. I'll confess that my chemical engineering education did not include making me knowledgeable about wiring diagrams! So, I turn to the experts for an answer to the question "does the converter provide a trickle charge to the chassis batteries?" both for my own education and to provide an answer to the Damon owners on IRV2.com. Thanks for the help! Share this post Link to post Share on other sites
wolfe10 Report post Posted October 4, 2018 Very easy to verify: Even overnight, battery voltage in the absence of a charger will dissipate the surface charge and drop below 13 VDC-- even headlights for 5 minutes is enough to accomplish this. With a converter or charger on, battery voltage will be around14 VDC, particularly right after turning off shore power breaker and back on (so the smart charger goes into bulk mode). So, do this and then measure voltage at each battery bank. If chassis battery is the same as house, the chassis battery IS being charged. If chassis battery voltage is lower, it is NOT. Share this post Link to post Share on other sites
fagnaml Report post Posted October 5, 2018 Thanks for the advice Brett. I'll check the voltages this weekend. Share this post Link to post Share on other sites
richard5933 Report post Posted October 5, 2018 If your system is not setup to provide a trickle charge to the start batteries, it's pretty simple to fix. We use a Xantrex Echo Charger which can send up to 15 amps to the start batteries from the house battery charger. There are others out there that do the same, some with less output. Share this post Link to post Share on other sites
