I have not yet done this, but I have deduced from writings of the smartest members here that it should work.
Assume for now, you want separate 1P (or some low P-count) sub-pack modules, spot-weld serial'd, say at 6S for example
Multiple such packs to be joined in parallel at the 22V level for intra-pack power, with 2-pin connectors like XT90 or whatever in order to increase the pack's Ah capacity or decrease the weight
as needed for today's riding.
Note this thread should for clarity stick to **only** this above example, just discussing electrical design principles here
start your own thread for something else
The serial joining of these 6S packs into higher voltage units will be discussed in another thread TBA and linked, later on.
Really the above is not a technical challenge, very straightforward.
The more complex (for this noob) issue, is the desire to add cell-level* devices like
BMS
voltage monitor
cell-checker
balancer
hobby charger
*in reality could be a 6P 3P group of cells in parallel at the bottom level, but here for simplicity the example sub-packs are 1P6S, so we'll use "cell level" to mean "at 1S voltage"
Assume for now, you want separate 1P (or some low P-count) sub-pack modules, spot-weld serial'd, say at 6S for example
Multiple such packs to be joined in parallel at the 22V level for intra-pack power, with 2-pin connectors like XT90 or whatever in order to increase the pack's Ah capacity or decrease the weight
as needed for today's riding.
Note this thread should for clarity stick to **only** this above example, just discussing electrical design principles here
start your own thread for something else
The serial joining of these 6S packs into higher voltage units will be discussed in another thread TBA and linked, later on.
Really the above is not a technical challenge, very straightforward.
The more complex (for this noob) issue, is the desire to add cell-level* devices like
BMS
voltage monitor
cell-checker
balancer
hobby charger
*in reality could be a 6P 3P group of cells in parallel at the bottom level, but here for simplicity the example sub-packs are 1P6S, so we'll use "cell level" to mean "at 1S voltage"