Quote:
Originally Posted by snellemin
Those prismatic packs are just like the round ones, which is 3.3v nominal. So you would need like 20 of those bad boys. But if you do so, you could probably do 40 miles at full speed. More if you can control yourself. I calculated about 3Ah for 5.5 miles, give and take headwind, and some hills based on my datalogs. This morning I was still averaging 25mph on my 14s Lipo. Tire pressure set at 60psi for both front and rear.
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This setup sounds like it would have some great specs and more like what I would like to do on my bike. But man that would be over a $1000 just for those batteries plus all of the work putting the right pack together, but what a great battery pack that would be, right? Seems to me this would be the best way to go for a really good e-bike.
I build up a ghetto battery pack consisting recycled laptop 18650 size batteries. Total of 13s4p setup. Startup is sucks, as there is not enough Amps. So more pedaling is required. But once you start to roll, it will go all the way to 25mph on a flat road. It just takes longer to get there compared to the lipo pack. Battery pack was at 109F at the end of the trip to work. A 6p pack would do better. I'm running at the max continuous ampdraw of the pack. But now I'm averaging 500W, like the system is rated for.
Just seems like a whimpy way to go for what you are trying to do. No take off power and going up hill would be terrible, right? The A123 pack is a much better option if you ask me. All of that work putting together that pack and then having to peddle like a mad man just to get up to speed is not a good option if you ask me.