Hi, about 3 weeks ago I purchased a used 2022 LE2 with the Lithium Pro package. I've searched for the answer to this question here and in other places, and have a suspicion, but I thought I'd ask the experts here before I start making expirimental changes just in case someone can tell me for sure what is wrong.
The issue I'm having is that the three lithium batteries, which appear to be in good condition, do not charge and discharge together simultaneously. So, if I'm using a load, one battery might report that it is dispensing 20 amps, and the other 5A and the third might be 1A. Eventually they will all become discharged. The same is true in reverse, when they are charging, one will receive more amps than the others and reach full charge first.
My suspicion is that the wiring of the batteries is not correct, from what I've learned from watching YouTube videos about RV lithium battery set ups. My understanding is that the batteries are supposed to be wiried in parallel, with diagonal take offs. There appear to be four different take offs in my setup (I haven't figured out what each one is yet, but I'm guessing one is for connection to the Xantrex Inverter/Charger and one is for the battery pad heater, but I'm haven't figured out what the third and fourth are). It looks like the pad heater is the one that is not connected properly. However, I find it odd that the problem exists whether the heater is on or off.
Note that I don't believe the previous owner changed anything (the marks on the cables and terminals would indicate that also), so it was almost certainly set up this way at the factory. I've attached a photo of the cable connections to the batteries, and I would be happy to make another post with photos of the Xantrex settings or the Lithionics battery app information if anyone would like to see that.
Thanks in advance for any help you can provide!
Paul