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GREAT must read for L/W batteries..

EDR said:
Zoran, you have voided the warranty thou by allowing it below 9v. That's why we (all agree) you need to keep it properly charged up/maintained.

According to Shorai’s warranty, if the battery goes under 9v, you have voided the warranty. You can read about it on the Shorai website where they list conditions that void the warranty: “Over-discharge (resting voltage below 9V/4.5V for 12V/6V types”.

You can find that information here: http://www.shoraipower.com/s.nl/it.I/id.2/.f
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You need to learn how to read. If you destroy battery by doing something stupid or incorrect than yes, warranty is void. But if that is manufacturer (check spelling on that :teeth) defect and battery goes bad it is covered.
 
The damn things last forever and weigh nothing. Plus they are about 1.5 times the cost of a good Yuasa and are a much better battery. I just bought another one. One more and all my bikes are Shorai.
 
EDR said:
Just wanted to get the true expert on this as i am certain he knows far more than Zoran and myself
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Don't know about you but fyi I am electrical engineer, just skipped few days of school here and there :teeth
 
TWF said:
Don't know about you but fyi I am electrical engineer, just skipped few days of school here and there :teeth
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thats great. as i said, not discounting your (or even my) knowledge on these, but the info i posted was from a guy that actually designs, develops, works with the manufacture of A123, top race teams and owns a battery company. IMO thats a bit more solid info, thats why i posted. Thats all. Not saying one more correct than other. :cool
 
EDR said:
This is not correct- at least not with the A123 Systems cells used by Full Spectrum Power. While the cells can be damaged by allowing them to remain discharged below a certain threshold, they are not going to catch fire during recharge- ever.

First, the FSP Pulse battery has a safety circuit which prevents this from happening, and second, the A123 Systems cells are one of the few types of lithium which is specifically designed to avoid this. Li Poly and other types of Lithium Ion may have this happen, but not LiFeP04 Nanophosphate, which is what the A123 Systems cells are.
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Good to know about the A123 system. I am using a differnt brand and when trying to recharge from over discharge the cells became extremely hot. would they catch fire...? actually I don't know. But it seemed to be heading that way. My only experience with LiPo type batteries are with RC car racing and i have seen them catch fire on a charger (and off). I realize the LiFe are more stable. I didn't mean to spread any misinformation, just wanted to pass on that these new Li batteries cannont be treated exactly like Lead-acid.

Would you happen to know if the case surrounding the cells for A123 can contain a runaway discharge?
 
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