AGM or Li-iron? - Wrist Twisters
 
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post #1 of 4 Old 02-25-2012, 09:27 AM Thread Starter
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AGM or Li-iron?

So I am about ready to pull the trigger on a new battery. Down to 2 choices.
The Shorai - Shorai LFX14A4-BS12 Lithium-Iron Phosphate (LiFePO4) Powersports Battery

The Shorai looks really nice on paper and appears to be the best choice, BUT it's 2 times as expensive as a good quality AGM lead/acid.
AGM 12V 10AH

After a bunch of reading, the westco batteries look to be very good quality AGM batteries, but if the Shorai truly gets 2 times the lifespan, especially with no maintenance (which is what I plan on) then it's the batter value.

Any of you AGM guys who don't maintenance, I would like to know lifespan.
You Shorai owners, I would like to know lifespan on yours also.

Thanks!

oh, the weight savings isn't a big deal to me. 5lb doesn't matter to me since I'm not putting the thing around a track. I need to lose more weight myself before I worry about 5lb on my bike.

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post #2 of 4 Old 02-25-2012, 10:31 AM Thread Starter
Need money for parts.
 
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another question I guess. Anyone have any experience with the super el cheapo agm's on ebay?
NEW BATTERY YTZ10S HONDA 919 CBR929 CBR954 CBR1000RR | eBay

$27 is pretty cheap and leaves me with a good chunk of cash on the way to chain/sprockets

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post #3 of 4 Old 02-25-2012, 12:06 PM
rmb
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I've never heard anything good about the cheap ebay batteries. I thins a good battery is a better investment unles your chain & sprockets are shot. My .02.

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post #4 of 4 Old 02-25-2012, 02:44 PM
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I have a Shorai LiFe. Been nothing but happy with it, had the bike sitting for 2 months through winter (outside) and bike fired right up with one thumb of the starter. You do however have to take her out for a ride to recharge... I made the mistake of checking several nights before I planned on going on a ride by starting it up to see if it still had juice. Fired right up no problem; didn't let it idle for more than a minute... come ride day, swapped oil and tried again. Battery was dead

So while a tender on a stock battery will be your best choice for a FOR SURE start and restart, the Shorai will fire right up as well but you do have to take it out for a ride to charge.

Shorai has weight savings (2lbs) and is much smaller than the stock. You'll have enough room for the factory tool kit in there.

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- '96 Race-retired GSXR 750 (Sold)
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