Hi all
I'm currently making 2 x 24v 60ah battery packs from SLA cells I had spare. Each pack has 4 x 12v 30ah cells wired in series and parallel. The reason I am making 2 packs and not one is due to weight as these packs need to be transported.
I would like the packs to be duel purpose, as in, sometimes they will be used separately from one another, but other times I would like to make a link cable to join the 2 packs together producing 24v 120ah.
My question is in relation to DC flow. I've always understood DC current to be like the analogy of a water pipe, flowing in one direction, + -. That I understand. But how is flow affected if I was to have a load connected to both battery packs even though they were linked? Will this cause an imbalance on the cells? For example, let's say I have an 8 amp load connected to pack 1 and a 2 amp load connected to pack 2 but the 2 packs are linked. Can the electrons in the negative side flow in either direction to discharge the cells as a whole? Or, is it the case that I have to have all loads connected to one pack rather than both sides of the packs?
Thanks in advance
I'm currently making 2 x 24v 60ah battery packs from SLA cells I had spare. Each pack has 4 x 12v 30ah cells wired in series and parallel. The reason I am making 2 packs and not one is due to weight as these packs need to be transported.
I would like the packs to be duel purpose, as in, sometimes they will be used separately from one another, but other times I would like to make a link cable to join the 2 packs together producing 24v 120ah.
My question is in relation to DC flow. I've always understood DC current to be like the analogy of a water pipe, flowing in one direction, + -. That I understand. But how is flow affected if I was to have a load connected to both battery packs even though they were linked? Will this cause an imbalance on the cells? For example, let's say I have an 8 amp load connected to pack 1 and a 2 amp load connected to pack 2 but the 2 packs are linked. Can the electrons in the negative side flow in either direction to discharge the cells as a whole? Or, is it the case that I have to have all loads connected to one pack rather than both sides of the packs?
Thanks in advance