caspy7 t1_j233bp0 wrote
Reply to comment by Shape__Shifter in ELI5 why do electric vehicles have one big battery that's hard to replace once it's expired, rather than lots of smaller ones that could be swapped out based on need (to trade off range/power/weight)? by ginonofalg
The big batteries are already made up of smaller batteries internally.
arglarg t1_j2376fo wrote
Ok but you wouldn't connect 25000 AA batteries in series (ok, I would), that limits the failure points a bit.
givemeyours0ul t1_j23zjvo wrote
Go watch a how it's made on Tesla or Rivian batteries. Connecting them in series/parallel is exactly what they do.
arglarg t1_j240ram wrote
Yes but not all in series. For 25000 AA batteries that would give you about 37kV, you probably don't want/need so much.
givemeyours0ul t1_j241kfu wrote
Yes, obviously. That's why I said series/ parallel.
purduephotog t1_j24coth wrote
>Yes but not all in series. For 25000 AA batteries that would give you about 37kV, you probably don't want/need so much.
Tesla packs are 100Kw.
arglarg t1_j24d2gz wrote
At 35kV?
frustrated_staff t1_j2380x6 wrote
So is a 9volt dry-cell
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