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Old 06-10-2021, 09:30 AM   #1
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Converter not charging chassis battery

Hi folks. I have an onging issue with my house and chassis batteries. At time they charged correctly and recently it is chronic. House batteries do not charge while driving and chassis battery does not charge when hooked to shore power. I am pretty sure the solenoid in the BCC is not working correctly. My battery boost does not seem to work either. Looking at other posts it seems the solenoid is the problem. I am not sure I really want to dig into the BCC and replace the solenoid. I was looking at another solution with a way to use a 12 volt to 12 volt charger to accomplish the same thing. I found this online Xantrex 82-0123-01 https://www.amazon.com/Xantrex-82-01...0016G8RT8?th=1 or this https://www.rvupgradestore.com/Ultra...ik-l-start.htm Could this be installed in the battery bay (both chassis and house battery posts on on my BCC) to maintain both batteries regardless of whether I am on shore power or driving? Any suggestions other solutions are welcome too....

Was wondering if someone with more knowledge than me could chime in and offer their opinion.
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Old 06-10-2021, 09:48 AM   #2
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The device you linked to is one way. You describe a two way connection. If you are still on lead-acid, probably best to repair your current setup. If you go Lithium you'll likely need a different BIM which can often be installed in the same enclosure with some effort.




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Old 06-10-2021, 10:27 AM   #3
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I had a similar problem in my 2019 34H5. I opted to replace the whole SDC -107A Battery Control Center rather than just replace the solenoid. For what it's worth, John Mock at RV Custom Products was extremely helpful and the cost to replace it was 206.72 plus local shipping. Here's the thread on the subject.

https://www.forestriverforums.com/fo...es-230148.html
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Old 06-10-2021, 11:04 AM   #4
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Quote:
Originally Posted by TominVegas View Post
I had a similar problem in my 2019 34H5. I opted to replace the whole SDC -107A Battery Control Center rather than just replace the solenoid. For what it's worth, John Mock at RV Custom Products was extremely helpful and the cost to replace it was 206.72 plus local shipping. Here's the thread on the subject.

https://www.forestriverforums.com/fo...es-230148.html
Thanks for this info! I thought I had a perm workaround - leave shore power on until I start the RV when leaving the house and start the engine before disconnecting shore power when leaving the camp ground. It worked fine until the last trip when I lost power at the campground during the night.....since then the problem popped back up for good. I have a small trickle charger on the chassis battery so it does not drain if I camp for more than a few days. When I drive move the fridge over to gas as to not run off the batteries (inverter) and it maintains 12.4 while driving. Was hoping for a 12 volt to 12 volt charge solution.
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