2oldman wrote:
N8GS wrote:
If you want to understand the balancing issues better, there is a lot of info relating to prismatic cells and Top vs Bottom balancing.
Ain't this fun!
I have cylindrical cells, not prismatic. Balancing is all internal to the pack, which is why I didn't choose 4 12v in series.
Yes, it is fun!! I like pioneering!
I understand that but the principals still apply. Like you I gave up on trying to design/program my own BMS. Time will tell if parallel 12 v bats work like we think they should.
I spent a lot of time emailing and on the phone with Sean at Battle Born. Actually that is not the company name but is the brand name they are using.
I have a 100 A converter/charger for if the sun doesn't shine but have never needed it. 470 watts of tilted panels in Quartzsite has been plenty. TV on, morning and evening + computer and printer and microwave, we get by on 95 Ah very nicely. Looking forward to getting back there for New years eve. If you are there maybe our paths will cross.
BTW microwave draws 132 amps, voltage drop under load is 0.12 volts on my 12 V system.