School me on batteries; Yaesu vs. Shorai with heated gear - Ducati.ms - The Ultimate Ducati Forum
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post #1 of 15 (permalink) Old Jan 12th, 2016, 2:22 pm Thread Starter
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School me on batteries; Yaesu vs. Shorai with heated gear

Hey all, I've tried finding info on this but to no avail...

I currently have a Shorai on my Multi but due to moving to a bit colder area, I'll have to use heated gear. At 2-3AM, due to the cold, my bike will barely kick over. I'm wondering if adding the additional load from the heated gear will tip it over the edge...am I better off replacing it with the stock Yaesu?

As you can tell, I don't know a lot about electricity...sorry.

Thank you!!!
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post #2 of 15 (permalink) Old Jan 12th, 2016, 2:32 pm
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Well, once it starts, you are running off the alternator. As for the warm up below 30 degrees F, Shorai recommends that you turn the key on to let the headlight shine for 30 seconds - "to warm up the battery", whatever that means, so I think you will be ok with the accessory heaters. Good ones have fuses,..

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post #3 of 15 (permalink) Old Jan 12th, 2016, 3:04 pm Thread Starter
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Sweet, thanks bud. I think I'll keep the Shorai.
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post #4 of 15 (permalink) Old Jan 14th, 2016, 1:58 am
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I saw an article about electric bikes that said something about the batteries not liking <20F.

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post #5 of 15 (permalink) Old Jan 14th, 2016, 6:13 am
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The Stock battery lasted for how long?
5 years is a good battery life and I change them out for peace of mind rather than letting them die an untimely death.

Hook heated gear up directly to the battery, with appropriate fuse, (with controller)
No problem!
I will shut down the heated gear a couple of miles before destination, again for peace of mind, and may even run the bike a bit before shutting down (3000 rpm will make lotsa juice to charge the battery ???)
Hey you can even get a battery (pocket size ) for walking about with the heated gear!
Gerbings has whatever you will need. They make heated gear for the military (so I have heard)
Battery technology has jumped leaps and bounds!
Stock is still very OK.

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post #6 of 15 (permalink) Old Jan 20th, 2016, 2:37 am
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This is what happened to the Shorai in my dirt bike. Had one in my wife's F650GS also, and replacing seems to have fixed some intermittent stalling issues. I'm not likely to buy another one
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post #7 of 15 (permalink) Old Jan 20th, 2016, 7:31 am
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Originally Posted by Pgalligan View Post
This is what happened to the Shorai in my dirt bike. Had one in my wife's F650GS also, and replacing seems to have fixed some intermittent stalling issues. I'm not likely to buy another one
Ouch. How old was it before it did this? Any luck having Shorai reimburse you? This makes me a bit wary of the one i have in my monster.

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post #8 of 15 (permalink) Old Jan 20th, 2016, 7:57 am
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I have been using Shorai batteries in my Tuono, Multi 1200 and TNT 1130 for the past 4 years without any issues, we get down to close to 0 deg C in Tokyo in winter, and they will crank a bit slow then but turn on the light for a bit or crank over then wait a minute before next try and they always work fine. No problems with heated gear so far
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post #9 of 15 (permalink) Old Jan 20th, 2016, 8:00 am
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Originally Posted by monocog007 View Post
Ouch. How old was it before it did this? Any luck having Shorai reimburse you? This makes me a bit wary of the one i have in my monster.

Probably 18mths old. They suggested it was caused by overcharging. Not sure how a 450 dirt bike could do that


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post #10 of 15 (permalink) Old Jan 20th, 2016, 2:42 pm
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Probably 18mths old. They suggested it was caused by overcharging. Not sure how a 450 dirt bike could do that
Bad voltage regulator. Japanese bikes seem to have a lot of problems with regulators, especially Honda.

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