MrM1
I'm Here, But I'm Not All There
Just finished building up two 8s 230ah packs (here starting at #28) each with its own 100amp Overkill Solar BMS. The packs are joined in parallel at big busbars. I went to great pains to make sure all connection cables were the same length.
Everything is Flowing pretty close charging and discharging. When charging using a steady-state charge of 90 amps (45amps to each 8s pack) , but there is about a 0.5 to 1 amp charge difference between the two 8s packs.
My question is, should I tinker with cable length to try and get less resistance on the pack that is taking less amps?
Or does less than 1 amp charge difference matter that much for parallel charging?
If I were to tinker with the cable length, how much shorter should I make the cable that is not charging as well as the other pack?
Is 1 inch too much with #4 welding cable. Or would 1" pretty much not do much?
Everything is Flowing pretty close charging and discharging. When charging using a steady-state charge of 90 amps (45amps to each 8s pack) , but there is about a 0.5 to 1 amp charge difference between the two 8s packs.
My question is, should I tinker with cable length to try and get less resistance on the pack that is taking less amps?
Or does less than 1 amp charge difference matter that much for parallel charging?
If I were to tinker with the cable length, how much shorter should I make the cable that is not charging as well as the other pack?
Is 1 inch too much with #4 welding cable. Or would 1" pretty much not do much?
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