I have another question. I assume you can use two BMS-enabled packs in series, as each LVC function in each BMS will work independently to protect each pack. What about if these series connected BMS-enabled DeWalt pairs are paralleled, in 2p, and/or 4p configurations? Would it matter? If it is a problem, would using the Schottky diode isolators help?
Normally, when you parallel two packs, the voltage ends up being the average of the two. I always assumed this would be roughly analogous to having the level of water in two containers equalizing, if they are connected. To make that happen, some water has to flow from the higher level container to the lower level one. I would think the same sort of thing happens with two paralleled batteries. Is this the case, what happens if you parallel two BMS-enabled DeWalt packs? I guess another way of asking the question, can you recharge the cells through the switched connections? I would think not, but what happens if you try?
Interesting.
-- Gary