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Old 12-14-2012, 10:21 AM   #1
EDR
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Thumbs up GREAT must read for L/W batteries..

Really informative, no matter what battery you use, if it is lithium based give this a read.

http://www.fullspectrumpower.com/bat...thium-battery/


I am biased as we only stock/sell/use the Full Spectrum ones. Tried ALL the others and theirs are most reliable and strongest cranking for size. My personal R6 battery is the older G1 now 3 years old and never had an issue and its about the size of a deck of cards, simply tiny.
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Old 12-14-2012, 11:26 AM   #2
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Wow those batteries are freaken small and light. Thx m8
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Old 12-14-2012, 02:31 PM   #3
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And here I was putting my lithium battery on the batterytender every chance I got. It held up perfectly like that for 2 years and the tender seemed to be able to read the charge accurately, maybe I F'd it up or maybe they just want you to buy the charger. I'm not a gearhead or a chemist so can't speculate which one it was.

Going to have to save up for the P2 in the new bike.
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Old 12-14-2012, 02:37 PM   #4
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Shorai say it is ok to use battery tender. Apparently they are full of shit

http://www.shoraipower.com/s.nl/it.I/id.5/.f
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Old 12-14-2012, 02:39 PM   #5
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btw. from my experience battery tender is not to charge battery fully but just to bring it back if it falls down. Than you can start the bike and it will charge while running.
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Old 12-14-2012, 04:37 PM   #6
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My 2 cents about this battery after reading about lithium based motorcycle batteries in general.

Positives:
A123 based cells. Gives the most amount of power and reliability.
BMS charging port. A BMS is required to properly balance the cells and maximize battery life.

Negatives:
Doesn't say it's water proof
BMS balancer is not built in to the battery, therefore requires a BMS charger to balance the cells.

But yah, I would definitely invest in a BMS charger if your battery has a BMS charging port. Balancing the cells is important to maximize life of the cells.
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Old 12-14-2012, 04:38 PM   #7
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Thanks for posting this important info on lithium batteries. I will now go home and unplug my bikes from their respective battery tenders and disconnect the ground.

Another important point about these cells is that if they get discharged below a certain voltage they are destroyed. They CANNOT be put back on a charger without risk of combusting. Youtube lithium ion battery runaway discharge
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Old 12-14-2012, 04:39 PM   #8
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A123 based cells.
Shorai is not A123 cells.
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Old 12-14-2012, 04:42 PM   #9
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Another important point about these cells is that if they get discharged below a certain voltage they are destroyed.
Not true, we got some back from almost 0. Lead batteries are not much better either in that regard.
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Old 12-14-2012, 06:18 PM   #10
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i like my shorai!
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Old 12-14-2012, 06:47 PM   #11
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i like my shorai!
X2! its all I buy anymore.
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Old 12-15-2012, 12:58 AM   #12
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i balanced my shor batt for my bike with my rc car battery charger. all my cells are even. just got to make sure u have the right charger for the battry and balancer. dont nuke it, seen it with rc batterys, swell up like a ballon
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Old 12-15-2012, 12:49 PM   #13
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I got some responses to post up for you guys

I actually spoke with the manufacture of Full Spectrum batteries himself, the guy actually builds them, so i think even over just guys that use and sell them like Zoran (zoran you sell Shorai correct?) and I, his input is VERY valid and why the top teams like WSS Champs, KTM Factory teams etc use him and his products. So here are some responses, hope this helps everyone no matter what l/w battery they use. 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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Last edited by EDR; 12-15-2012 at 12:51 PM..
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Old 12-15-2012, 12:49 PM   #14
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Quote:
Originally Posted by Mjollnir View Post
And here I was putting my lithium battery on the batterytender every chance I got. It held up perfectly like that for 2 years and the tender seemed to be able to read the charge accurately, maybe I F'd it up or maybe they just want you to buy the charger. I'm not a gearhead or a chemist so can't speculate which one it was.

Going to have to save up for the P2 in the new bike.
Putting a lithium battery on a tender constantly will eventually lead to reduced capacity, as the Battery Tender is not “able to read the charge accurately”, but is only looking at voltage. With lithium, you can have surface voltage of 13.2 with capacity at 40%...and Battery Tender cannot read State of Charge.
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Old 12-15-2012, 12:50 PM   #15
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Originally Posted by TWF View Post
Shorai say it is ok to use battery tender. Apparently they are full of shit

http://www.shoraipower.com/s.nl/it.I/id.5/.f
Actually Zoran, Shorai does not say that at all. In fact, if you read the page you linked, you would see this about Battery Tender:
Q. Should I use a battery tender?
A.The short answer is "only if you really need to".

So, as pointed out, you really should not use a Battery Tender because it cannot measure state of charge, and therefore isn't good at actually "Tending" to the batteries...State of Charge.
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