Lithium Confusion

StirCrazy wrote:

Itinerant1 wrote:

StirCrazy wrote:

Itinerant1 wrote:



Just a little update with no recorded data of the microair on the AC unit and the LFP batteries. Did a short move and dumped the tanks yesterday. Trailer was closed up for 3 hours and the inside temp was feeling warm at 82f (1600 hours). It was nice not having to hookup the generator for the air conditioner for a short cool down cycle. Ran the 15k AC unit for over an hour while setting up and winding down after the move till the inside colled down to 72f off the batteries. The sun was low in the sky so not alot of help from solar, when first turning it on it was drawing 60a, just before turning it off it was drawing 75a and used 11% of the batteries. No issues at running it from just the batteries with little assist from solar and will like it for brief cooldowns, maybe lunch breaks during a move that some cool air can be produced. The microair upgrade on the AC unit well worth it.

how big was your battery bank and solar again? would be nice to have the option of doing this in the 5th wheeh and since it needs more batteries anyways.....


Steve

500ah, 1,280w solar

hmm.. ok I am looking at going between 560 and 840AH in the 5th wheel, depending on if a buddy of mine wants to go in on some cells or not. I found a deal on 16 280Ah cells so 4 are going in the camper and 12 in the fith unless buddy wants 4 of them. but I only have 480 watts of solar up there... maybe its time for an upgrade. 4, 325w 24V pannels and a 60amp controler... would probabou need a larger wire from the combiner to the controler also.. now you have me thinking haha.

Steve

Living fulltime off the system now for almost 5 years if I were to do it over with what I know now and have experienced from it in daily conditions I would add 100ah more. The 1,280w of solar has been plenty during spring , summer, fall. In winter if I could tilt the panels that would make up any short comings in production and possibly eliminate the generator but I don't have a problem still living with full use of whatever I want in the trailer in a PSOC and if needed throw a little hold over charge with the Honda 2200.

My system is actually wired for 2 more panels but I figured to try 1,280w first and see how that worked I never added 2 more panels (360W) because it's been working perfectly with no complaints. Now if I was more in "hot" areas with no way of moving and needed to run the air conditioner from solar than I would add the 360w. 1,640w solar would carry the daily loads nicely. ;)