Originally Posted by
turbo1889
Are you limiting yourself only to pre-made packs or are you willing to build your own pack up from smaller packs ~ say for example reasonably priced decent quality 12.8V four cell packs that you would have to wire together in series to get the voltage you want (4 to 5 for the voltage range you are looking at)? Is that a viable option for you or are you only interested in plug and play packs made specifically for e-bikes?
Reason I ask is that you can get some pretty decent LiFePO4 packs built for the solar power industry and the motorcycle (starter) battery industry in that voltage (12.8V four cell series packs) for reasonable prices and wire them up together. That's what I've done with most of my builds.
Can you reference a site where you buy these packs? Also, when you string them together in series, do you bulk charge? or charge each pack individually? Also is a BMS needed? I might try something like this for my next pack.