Quote:
Originally Posted by spoil9
Although I'm still in school for EE, just doing a little math here.
to get the 72V from rechargable AA (which only put out about 1.4v) comes out to needing 51.4 batteries wired in series. So we'll say 52 batteries since you buy them in packs of 4.
Then to get the 100A from 2.7A, you would need 37 strings of batteries.
37 strings of 52 batteries would equal 1,924 batteries, (or about 481 packs of 4).
481 packs at £5 would be £2,405 (US$3496-ish).
|
Ah, interesting, I thought you could set it up so you had a string of 52.4 in series which then leads to the 37 in parallel, rather than making a giant square of batteries as you are suggesting. My knowledge is somewhat lacking on the subject, but this would mean that you would only need 90odd batteries, rather than nearly 2000.
Here's a quick paint job of that I mean, sorry about the quality, my brain doesnt work at these times (7am here in the UK). In this case you're looking at spending only about 23 packs*£5 which is £115.