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I am building a 12V system for our 1969 22 ft. classic RV with solar. I have mounted 6 ea. Battle Born GC2 100 Ah batteries connected to an AIMS 3000 watt inverter/charger/transfer switch. I will be removing the vehicle 12 V flooded lead engine/house batteries and using just the LFP for all RV...

Since I am going 100 percent electric, I wanted more than 30 amps and CamoGreg showed me a 50 amps splitter cable with 30 amp male connector and a 20 amp male connector. I like this as an option if the 50 amp service is not available. I will likely normally use 50 amp service, but if that is...

Because I am going 100% electric appliances, I want to maximize the amps I can pull from shore power. I want to be able to use either 30 amp or 50 amp service. When using 50 amps, I am thinking that I might be able to use one of the 50 amp lines dedicated for the roof A/C and the other line...

I am serious about purchasing two of the Battle Born GC3 batteries (2 ea. 270 Ah 12 volts) for installation in our 1969 22 ft. Ultravan Class A RV. These are on sale for $2359 right now and possibly through January 2022. They are in stock with about a 2 day delivery into CA. These should...

I have been making some progress with my Ultravan RV solar and Lion battery system. I decided to purchase a dedicated engine starting battery now (and for engine starting reliability) and keep looking for the four 280a DIY cells when I can find a reliable (read as dependable) supplier who can...

Does anyone have recommendations Pro or Con for the Noco Genius Genpro 10X1? Since I have not even ordered my four 280 Ah LFP cells I am several months away from having my mondo RV battery. I then need/want to maximize the use of my two old and tired Optima AGM yellow tops. Also, I am...

I was looking at the fuse blocks that are recommended and thinking of upgrading my electrical wiring and the fuse panels that currently (no pun) use the old school glass fuses. For those modern fuse blocks it might be super simple to add indicator leds like I did for my old fuse panels. I...

I was just wondering if anyone has tried using a 280 Ah LFP to start an engine at 1.5C? I KNOW it is beyond the specs. My engine takes 2 to 10 seconds to start at up to 400 amps. I have seen other LFP batteries spec'd at more then 1C and I think one was at 2C or more. I DO know that this...

I have some questions about using DIY LiFePO4 batteries for both starting my big block Olds 455 engine as well as running my 1970 Ultravan 22 ft Class A RV. I have been using two old (3-4 years old) Optima 12V AGM batteries that are now weak. I need to test them to see exactly how weak. I...