hey there.
i got a 1512 2d/s
planned on running on a123...
pitty because ive realised that lipo have clear advantages (apart from being as strong/fast charge times! (20A FTW
))
anyway, i had planned on running 4s2p and that was slow... and the voltage dropped alot when i drew 104A + (wattmeter on measures up to 100A) went to 10.02v.
so the next plan was to run 2 more cells in parallel to make 5s2p. i have realised that fitting this in a small buggy is near impossible not to mention the weight (700g + tabs, wires, bullets and taps, 750g?)
anyway, im looking to buy a zippy (or equivilant $100 pack)
2 options. 4s 4800 25-35
or
5s 4800 25-35
the specs are the same as the PQ packs (coinsidence?) in terms of weight and dimensions as the 5K packs!
only question is will either of these packs fit? the a123 were approx 55mm tall and they had no chance of fitting
i would use one of mikes trays.
as far as weight goes the 5s will be substatially heavier but will give me more runtime and wattage...
also, i need to last 20 mins. will the 4s even do that?
anyway i have 2 voltage options, and a few gearing options (gear up with 4s or gear down on 5s)
i need to know which would be best. its a large track:
anyway,
please help.
i cant afford to buy 2 packs at this stage... im just worried that the 4s will be too slow, and not last long enough!
thanks guys.
ryan