Scorpio with Shorai battery - Honda RC51 Forum : RC51 Motorcycle Forums
 
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post #1 of 10 (permalink) Old 04-24-2015, 08:02 AM Thread Starter
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Scorpio with Shorai battery

I have a 2001 RC51 and to get full insurance coverage I have to have an alarm system installed in the bike. Last night I installed a Scorpio i800. The bike has a standard battery and i am thinking of replacing it for a Shorai battery I have as a spare for my CB550 cafe. From my past experience with Scorpio alarms is that they will drain a battery if the bike sits for more than 2 weeks. The Shorai batteries cannot be connected to a trickle charge.

Aside from a comment like "Don't let the bike site, ride it," what are you guys doing to keep your battery from draining while the bike sits idle? I personally think a security system is a waste of money. If someone really wants the bike they will steal it. While the bike is in the garage I could unplug the Scorpio....
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post #2 of 10 (permalink) Old 04-24-2015, 08:54 AM
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My charger (Japanese market) works fine with Gel batteries. Surely there is a charger that will work with a Shorai battery.

Personally, I hate alarms & don't have one on any of my bikes or cars. I use a HUGE top quality chain & lock on the SP & have a dog that will warn me if anybody gets near our home, yet alone tries to cut the chain (Took me 10 minutes and a lot of noise with a grinder when I lost my keys - no way I'd sleep through that much noise!), but then we live in a country where vehicle theft is very rare so insurance companies here don't require an alarm.

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Last edited by The Stig; 04-24-2015 at 08:56 AM.
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post #3 of 10 (permalink) Old 04-24-2015, 09:09 AM Thread Starter
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My charger (Japanese market) works fine with Gel batteries. Surely there is a charger that will work with a Shorai battery.

Personally, I hate alarms & don't have one on any of my bikes or cars. I use a HUGE top quality chain & lock on the SP & have a dog that will warn me if anybody gets near our home, yet alone tries to cut the chain (Took me 10 minutes and a lot of noise with a grinder when I lost my keys - no way I'd sleep through that much noise!), but then we live in a country where vehicle theft is very rare so insurance companies here don't require an alarm.
I fully agree. An alarm is a waste of time and money but I have no choice. I have the Shorai charger but I have not had much luck with it. My best bet may be to unplug the alarm if the bike sits for more than a week.
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post #4 of 10 (permalink) Old 04-24-2015, 02:17 PM
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I have a regular ol' lead acid battery and a Battery Tender, Jr. My alarm killed my battery once when it sat for a month. I decided that was the last time I was gonna let that happen.

Is this the Shorai charger you have? It says "Shorai Charge/Store Dedicated Battery Management System" and its 2A max charge rate is a trickle charge. What problem have you had with it? Does your alarm draw more than 2 amps? (2 amps x 12 volts =~24 watts)
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post #5 of 10 (permalink) Old 04-24-2015, 03:32 PM
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The Shorai batteries cannot be connected to a trickle charter.
This statement is incorrect. A trickle charger can be used to charge a shorai no problem. But it shouldn't be used after the battery is charged. There is a difference, for the benefit of the forum.
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post #6 of 10 (permalink) Old 04-24-2015, 04:05 PM Thread Starter
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I have a regular ol' lead acid battery and a Battery Tender, Jr. My alarm killed my battery once when it sat for a month. I decided that was the last time I was gonna let that happen.

Is this the Shorai charger you have? It says "Shorai Charge/Store Dedicated Battery Management System" and its 2A max charge rate is a trickle charge. What problem have you had with it? Does your alarm draw more than 2 amps? (2 amps x 12 volts =~24 watts)
Whenever I used the Shorai charger I could never get the battery charged where the green light came on. I have two batteries and they both never reach a "full" charge with the green light so I have no idea if the charger is faulty.
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post #7 of 10 (permalink) Old 04-24-2015, 04:17 PM Thread Starter
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This statement is incorrect. A trickle charger can be used to charge a shorai no problem. But it shouldn't be used after the battery is charged. There is a difference, for the benefit of the forum.
I agree you can use a trickle charger for a short period of time to charge a Shorai battery but my reference was for long term charging. I have used a regular 12v car charger to charge my Shorai but like you said I only leave the charge on until the battery is charged.
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post #8 of 10 (permalink) Old 04-24-2015, 04:42 PM
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I agree you can use a trickle charger for a short period of time to charge a Shorai battery but my reference was for long term charging.
I knew that, hence the characterization of my last sentence.


Fwiw you should be able to leave the shorai charger on all the time regardless if it fully charges or not to account for the alarm.
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post #9 of 10 (permalink) Old 04-24-2015, 04:49 PM Thread Starter
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I guess there is only one way to find out. The only down side is the lack of a harness but taking the seat off should not be a big deal.
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post #10 of 10 (permalink) Old 04-24-2015, 10:24 PM
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I have i900 on mine with a shoria. I've left the bike sit 4 to 6 weeks over the winter and did have a problem.
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