Bazaki said:
http://earthxmotorsports.com/products-page/thunderbird-1600-rocket-iii-2300/etx36d/
12v x 36ah = 432 W/h for a 1.5 KG battery ??
for example :
A123 20AH Pouch cell with 3,3v x 20ah is 66 w/h at 0.45 kg so for 432 wh A123 you need 6.45 KG ( without casing )
Impossible !
Yes, it is impossible.
That is just some marketing bullshit (sorry, no other word for that) created by shorai named "PBeQ", so that people could compare SLA type batteries. a 36AH "PBeQ" LFP means it can do the same CCA as a 36AH SLA battery. Not that it has a 36AH capacity. The real capacity is something like a third or a quarter of that, meaning you will most likely overdischarge the battery if you need the equivalent of a 36AH SLA.
I checked ballistic evo, earth X and shorai, but they all use chinese cells.
See this page for earthX :
http://earthxmotorsports.com/our-batteries/
They would really like people to understand "made in USA", but they write "assembled", "engineered", and in the end they are just adding a BMS and a casing around a chinese battery.
That is the reason i am going to test a pack made by nancy, with 4S4P 26650 cells. Should be way enough for race cars. I was convinced i dont need a BMS for a starter battery that gets disconnected when not used, and get an alternator producing approx 14V when running. I am going to test in real conditions, check balance after each couple of starting, check voltage sag and report my findings. This will take some time though.
I thing a 4S2P is enough for a bike. Big harley engines or high compression engines may require a 4S3P though.