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I currently have a DIY transfer switch between my 120v Inverter and 120v generator using one of these. It has worked good for my application. I am changing to a new generator that produces 240v along with a new breaker box that can accommodate the 240v. I need help figuring out how to make a...

I am considering using a Victron Energy BMV-712 as my Generators Auto Start control for when my batteries get low in the winter months. My generator has a simple 2 wire N.O. connection to initiate its self start sequence. I was going to use this Voltage Protection Module but I'm concerned with...

I want to monitor my off grid system via wifi from anywhere. I have (4) JBD 4S BMS with RS485 connections + UART/Bluetooth (2) Epever Tracer -BN Series Solar Controller with USB Communication Cables (1) Raspberry Pi Zero W (1) Raspberry Pi 3B+ What Do I need to do to get these to turn into a...

I have tried several Atkinson Electronics Voltage Sensitive Relays but can not get them to work consistently. I need a voltage sensing relay with normally open contacts, that will close at 12.0 volts and open at 13.60 volts. Anyone have a line on something that is reliable?

I have been using a Constant Current /Constant Voltage Charger (10A) to do my top balancing. I connected my BMS and did a bottom balance discharge test. Got the cells balanced at the bottom 3.0v. I was going to test my new Powermax PM3-120LK charger, set at a fixed 13.40v. I power up the...

After doing the parallel balance charging on the first 4 cells I decided to put a load test on the cells. Here are the results. All 8 cells arrived at 3.29v each. I broke them up into 2 x 4 cell groups. I Top balance charged the first battery to 3.40v then finished it off at 3.65v I then...

Is it normal to have a voltage drop going thru the BMS" I have 13.78 volts at battery terminal where BMS is connected and 13.32 volts coming out of BMS. I'm getting similar voltage drops on both batteries.

Working through the logistics of converting my L16 Flooded Battery system to LiFePO4 batteries. Just discovered that my Flexguard NC25A-12 Wind charge controller will not work with LiFePO4 batteries. I have it connected to 4 huge dump load resistors. Need recommendations on a charge controller...

Off Grid Cabin I’m looking at converting my existing 12v 740ah 4x L16 Flooded Battery System (11 Years Old) to a 12v 1120ah 16 x 280ah LiFePO4 Battery System. Current System has the following equipment. 2000w Sine Wave Inverter Transfer switch for generator / inverter 60 Watt Iota 12v Charger...

Does anyone make a single BMS that will handle a 400-800 ah 12 volt system?