Hello!
I’m working on a design for a submerged electrical device which requires an 8S6P battery pack. For space / weight balance reasons I’d like to split the pack into two separate 8S3P columns, each sealed into a PVC tube.
I’m very new to battery pack design, but my understanding is that it’s “safer” to construct an 8S6P pack than to parallelize two 8S3P packs, so here’s what I’m thinking:
If I get a piece of 16/12 SO cord and run it between those two packs, I could connect the packs at each of the series junction points so that even though they’re not in the same physical space, they’re electrically connected the way they would be if they were tabbed together.
Novice questions:
1. In concept, does what I described above make sense? Are there weird electrical consequences to having a wire bridge connecting two banks of tabbed cells? Is 16GA wire sufficient for a <30” bridge length?
2. Can I seal these things in tubes and never remove them during discharge and charging? Or is that going to create heat buildup problems?
3. If I do this, I’m assuming I can put the BMS on one side and the bridge between the two stacks of batteries allows it to do its work for the whole pack, yes?
Thanks,
-Ben
I’m working on a design for a submerged electrical device which requires an 8S6P battery pack. For space / weight balance reasons I’d like to split the pack into two separate 8S3P columns, each sealed into a PVC tube.
I’m very new to battery pack design, but my understanding is that it’s “safer” to construct an 8S6P pack than to parallelize two 8S3P packs, so here’s what I’m thinking:
If I get a piece of 16/12 SO cord and run it between those two packs, I could connect the packs at each of the series junction points so that even though they’re not in the same physical space, they’re electrically connected the way they would be if they were tabbed together.
Novice questions:
1. In concept, does what I described above make sense? Are there weird electrical consequences to having a wire bridge connecting two banks of tabbed cells? Is 16GA wire sufficient for a <30” bridge length?
2. Can I seal these things in tubes and never remove them during discharge and charging? Or is that going to create heat buildup problems?
3. If I do this, I’m assuming I can put the BMS on one side and the bridge between the two stacks of batteries allows it to do its work for the whole pack, yes?
Thanks,
-Ben