24S1P A123 20ah prismatic cells -Is there anywhere to get genuine cells at a good price?
A123 themselves actually sell the cells, thru their Stortronics site; it's the only place guaranteed to have the genuine stuff.
Or even have a pack built for me with genuine cells? There's quite a few vendors out there that say they have A123 cells and packs, but I don't know who's legit.
I don' know if they still do the pouch cell packs but EM3EV did have the real deal (I have one of them here).
4T MXUS 3000W V3 Motor - Where can I buy this?
I've seen some in the for sale section now and then, usually in the Used category. (is how I got mine).
Use this search
https://endless-sphere.com/forums/searc ... mit=Search
to list all the stuff with MXUS in the title in both new and used section, and just keep checking it until you find one you want.
Charger - What's a good charger that balances while charging?
If you have a pack built, and use a BMS, you won't need a balancing charger and could just use something like the weatherproof Meanwell HLG LED PSUs as a charger, or if you want more versatility (but at a higher cost) there's the Cycle Satiator from Grin Tech (which is also weatherproof, or as close as you'll probably get in a good versatile charger).
I'd love to still be using this bike 15 years from now!
Aging of cells will probably negate using the same battery for that long, unless you start with a pack that is at least several times the size/capacity that you actually need, so that A) it's shallowly discharged, and B) will still have the C-rate you need even that far down it's lifespan. Cuz for example with my first EIG NMC pack, it's aging (maybe 6 years while I've had it? was used when I got it) has caused it to sag a fair bit more than it used to under load, but it still provides the same total capacity it did originally (or so close it doesnt' matter).
But you can still use everythign else, and just keep adding to or replacing the battery once it no longer does what you want.