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My camper is set up by the factory for 50 amp service. The Factory used 6/3 AWG with (about) a 12 AWG bare copper ground wire between the shore power connector and the A/C distribution panel. I am installing a new Victron MultiPlus II 12/3000/120-50 2x120V inverter. Question: Did I make a...

I have built four 12VDC batteries built from 130 Ah CALB Lithium Iron Phosphate cells. Each battery has an Overkill Solar BMS. I will place the batteries in parallel to build a battery bank supplying power to my inverter. Question: Is it necessary to add a fuse to each battery to protect the...

In 2012 I bought 45 CALM 130Ah Lithium Iron Phosphate cells for a DIY EV. After 16,000 miles, the EV is long gone but the cells remain. I’ve been using them as 12 V batteries in my camper and they work well. But sometimes they get out of balance, one cell goes high and shuts off the charging...

I need some advice. For the past year, I've had 4 batteries in my camper. I built the batteries from 130 Ah CALB cells I pulled from an EV I built several years ago. I have a 100 Ah or 120 Ah Overkill BMS in each battery. The batteries are connected to the buss bars with Anderson plugs to make...

I am planning an upgrade to my RV solar power system. I presently have two NewPower 165 watt panels mounted on the roof of my camper. They are wired in series as a single sting with a rated PMax voltage of 35 volts and PMax amperage of 9.43 amps. These panels and MPPT charge controller feed a...

Hello. I'd like to post a question and ask for confirmation of my understanding of how a situation will behave. I am building a battery bank for my RV consisting of four 12 volt batteries. Each battery is made up of four CALB 130 Ah lithium iron phosphate cells from an EV that I built and have...

Hello, Like just about every camper sold commercially, my camper has an AC/DC converter to provide DC power and charge the FLA batteries, when plugged in to shore power, or the generator is running. In my situation, I'd like to power my RV with an onboard inverter, by simply plugging my RV 30...

Hi there! I've recently taken my home-built EV off of the road and now I have 45 CALB 130Ah cells to work with. Actually, let's call it more like 43 cells since one had died completely and another was sitting down around 2.9 VDC when I first checked it after beign in storage for 90 days. Since...