THenne1713
Senior Member
I expect will b interesting, if you understand that the RC of a deep-cycle is a Rating in MINUTES of how long BATTERY CAN HANDLE 25a. LOAD before dropping below 10.x-volts?... and (most Lead acid) RC ratings= LESS that 200
Prices are being forced down because of some healthy competition out there. www.redodopower.com sells them for ~$200 each and the quality of build is high per Will Prowse who routinely breaks these things down and does open/inspects for quality. The days of $1000 batteries are over.Yep... this is why I WON'T go the route of Lithium. I am not going to rebuild/purchase a whole new system for a 2021 unit where everything is new at this point.
I think I am going to add two more batteries, Renogy AGM gel. That would give me 4 batteries... 2 that are 80 ah and 2 that are 100 ah.
WSmith, I removed the dinette from behind the passengers seat. Built a single bed there. The 4 big batteries are under that bed. The other side has a matching bed over the fresh water tank.
The 12 volt system AGM I replaced with 2 12 volt Lion Safari lithium. Both batteries fit in the original spot. I bought a B2B to charge them off the alternator but never installed it. They charge great with the existing Gulf Stream system.
About charging in the cold, we have had temperatures in the single digits and the batteries under the floor (12 volt) in the cold have issues getting fully charged. The big batteries (24 volts) on the inside haven’t had any problems.
I did change the battery charge system under the fuse box. Got one for lithium off Amazon. It works fine.
Why did you upgrade the Converter to more A? Did you install it inside the power panel? What brand/model is the factory supplied Power Panel in the 5210? ThanksThe controller that I purchased. Working great. Now $120. Fan is a little loud.
Will Prowse on YouTube and on his site DIY Solar Power Forum goes into this and does a bunch of testing. Here's a helpful video on exactly this topic you've brought up:So recently reading that Cell Phone Lithium gets extended life if charge limited to 85% vs 100%? Does this apply to RV 12vdc lithium also? What is actual field experience of RVers?