Hey guys,
i've been reading (and studying) for 2 years now on the topic but I have one question I can't get my head around...
the parallel cells should even themselves out within the pack, the series packs individually might drift off a little,...
Why not simply put a few relay switches (ok they might be a bit expensive and cabling would need to support the low voltagebut more "simple" compared to BMS's)between the packs and make em switch between series and parallel. Parallel mode they form one big pack (in my mind) and when balanced out you can switch it back to series mode.
I know there is probably more to it, but that is my question, what is the difference?
I know the basics of the bms, but what is wrong in the above mentionned system?
i'll probably facepalm myself after your comments, but i couldn't really find the answer.
thanks and good luck in your DIY projects.
i've been reading (and studying) for 2 years now on the topic but I have one question I can't get my head around...
the parallel cells should even themselves out within the pack, the series packs individually might drift off a little,...
Why not simply put a few relay switches (ok they might be a bit expensive and cabling would need to support the low voltagebut more "simple" compared to BMS's)between the packs and make em switch between series and parallel. Parallel mode they form one big pack (in my mind) and when balanced out you can switch it back to series mode.
I know there is probably more to it, but that is my question, what is the difference?
I know the basics of the bms, but what is wrong in the above mentionned system?
i'll probably facepalm myself after your comments, but i couldn't really find the answer.
thanks and good luck in your DIY projects.