ok - well since i'm no where near ready to drop $1700+ on a 60v LiFePO4 pack, i had another idea. but - some new insight on my current setup. the current SLA's total 80Ah, but only 48v. that must be how they 'over engineered' the system. the controller is 60v. so, i should be good if i get up to 60v, so long as i don't introduce more current.
i'm thinking a less expensive but lighter setup is hardcase lipos. i'm not crazy about using lipos as there are a few big bumps on my way to work and around town, but the scooter is full suspension, and if i enclose all the hardcase lipos in more foam, they should be fine.
problem is, i can't seem to wrap my mind around how many of
these i'd need. they are in 2s2p configurations, so i'd need 18 to get to 59.2 nominal volts. it's been so long since i've done this that i forgot how joining packs together works... the above example of 18 packs wired in serial would be 59.2v, but still 6000mAh, correct?