Anyone know about these guys: http://www.foxxpower.com ?
They claim a retail price of $0.95 per Wh - so a 48V30Ah pack is $1368. Not sure if that includes charger and BMS or not. I don't know what formulation they use.
They look like a pretty big company, meaning you probably get their low price when you buy in bulk. I did not see any application for bikes.
I am currently looking into buying a a 48 volt 40 AH (16 cell) Foxx battery pack from from Aten Energy. http://www.atenenergy.biz/ Contact is Zane Tatum.
They make packs of all sizes for e-bikes on up. Mine will be reconfigured to replace the lead acid pack in an e-max scooter.
The one person I am aware of with one of their packs is pretty happy with it. His largely qualitative description of his experience is here:
I don't much mind that they're small - probably makes them more responsive.
Unfortunately, Zane/Aten energy doesn't appear to be very responsive. The guy on the endless sphere forum reported taking four months to recieve his pack. I have spent 16 days trying to get him to send me a preliminary invoice so I can close the sale - so who knows how long he actual batteries will take.
Aten energy may be largely exist as a "front" company for the Chinese manufacturer for the purpose of meeting "domestic content" requirements for government/defense contracts/subcontracts. If Zane gets a big contract with an OEM or the lucrative MIC, our measly $1K to 2K worth of business won't be worth the trouble.
Time to look at just getting Thundersky's from electric motorsport...