Recent content by Mark_B

I will have to give this some time to read and understand. Thank you for posting.

Below is the inverter I have, and Giandel has confirmed to GFCI with this one. Yes, the grounding issue preventing GFCI from working as expected. I have no expectation of connecting to grid, even to charge. So not sure how this might affect the circuitry. ? Thanks for the response!

Hey all. I'm looking for recommendations for an inverter running off a 100ah 24v Lifepo4 battery bank to power some odds and ends in my garage. But I want to run it through a sub-panel with a breaker or two and have GFCI protection either at the panel and/or the outlets. The basic cheap...

I do have a question. Is there much to be gained or lost in tinning the bars where they connect to the batteries? I'm thinking to prevent oxidation of the copper over time?

Thank you! The wires are long as they came this way from Overkill. A good problem I guess.

This is a little 4 cell 12v box I built for learning and for phone charging, camping and what-not.

I got the battery all built and all seems well. I'm topping off the charge with my new desktop variable power supply. Thanks everyone for all your help with this. It has been quite a learning experience. Next I'll be building out the power wall with inverter and MPPT charger (Victron)...

I appreciate hearing this. It helps me understand the battery mechanics better. But ultimately I just ordered new thinner bars that are wide enough to make the parallel and serious connections in one bar. My work time is worth more to me than the cost of the new bars. Cost me a bit, but I...

Quite a bit of extra work I have made for myself, but this should be pretty robust. Yes/No?

You gave me a much more accurate way to view the current flow. Thank you. I don't mind changing my plan here. I have plenty of copper pipe I could make bars out of to use on the 4p part of the battery. Does it make sense to do this and use the thicker bar for the 8S part? I can mill down...

Good grief, what a simple and great solution! Thanks!

Hi All. I'm building a 24 volt Lifepo4 battery and have a question or two. The pictures below illustrate my questions. I bought copper and made my own busbars. I didn't think it through well and ended up unable to stack busbars due to thickness. So I am thinking I can use 6 awg wire to jump...

Navitas are about 1.07 inches center to center stacked side by side, so shorter than headway. Those busbars should work, but you'd have to drill a hole.

Thanks for the heads up. I checked with my BMS maker and they say up to 24v series is ok. I am using the aluminum stock for now and will check the heat on it in use. I don't expect to be pulling many amps I don't think.

Well, initially I am using aluminum bus bars I am making myself. I may go to copper (crushed pipe) bars. If all else fails, then I will buy copper bars of some type. Batteryhookup is where I got mine.