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2014-09-06 13:00:00 GMT+00:00
Rotax Battery

 
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Daniel White



Joined: 05 Jun 2007
Posts: 500
Score: 6196
Location: Atlanta

PostPosted: Sun Dec 21, 2008 5:28 pm    Post subject: Rotax Battery Reply with quote

So I was reading a thread on the ekarting site and a fellow said that once a Rotax battery loses much or all of its charge (over a long period of no use) that the battery can just die. Because of this he charges his every couple of days.

What do you guys do?
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Tonykart EVRR / Adkins Yamaha
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Jeff Sikes
Junior 2 Cycle Director


Joined: 14 Apr 2006
Posts: 620
Score: 8403
Location: Athens, GA

PostPosted: Sun Dec 21, 2008 6:33 pm    Post subject: Reply with quote

Daniel,

If you will disconnect it from the kart after each race it should be fine. When you put it to bed at the end of the season, charge the battery and put it inside and you will be fine. When you charge it only use a 2 amp charge or less, anything more and you will shorten the life.

Jeff
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Ihor Bilyy
Site Admin


Joined: 10 Apr 2006
Posts: 1872
Score: 29147
Location: Canton, GA

PostPosted: Sun Dec 21, 2008 6:59 pm    Post subject: Reply with quote

Some people keep charging battery between session and disconnect battery when it is not used. I had 1 battery and charged it once before the race weekend and it was on a kart until Thursday before the next race. Now, because I have 2. I always charge two on Thursday before the race weekend, but replace battery if Sunday is also a race day. I do not touch them until next charging time. There was never more than 2 months between racing for us and it was never a problem of discharging.
Our last race was in Ocala on 11/22. I started Michael's engine last Saturday with battery still on from that race. Both are Yuasa and at least 2.5 y.o.
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clarence



Joined: 22 Jun 2008
Posts: 628
Score: 8229
Location: marietta

PostPosted: Sun Dec 21, 2008 8:07 pm    Post subject: Reply with quote

use a Battery Tender. They are fantastic.
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Mr. Sideways
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Darrin Tebbe
Out to pasture


Joined: 02 Jun 2007
Posts: 1212
Score: 28297
Location: Brooks, GA

PostPosted: Sun Dec 21, 2008 9:10 pm    Post subject: Reply with quote

clarence wrote:
use a Battery Tender. They are fantastic.


I 2nd this. Have them on by boat, atvs, drag car, and kart starter. A battery tender brand has electronic circuitry that keeps the battery topped off perfectly without overcharging it. Before I started using one on my boat I'd need a new battery about every other year. Since I put the tender on there I'm 5 years into my current battery. Well worth the $30 price. Summit Racing stocks them, and I'm sure they are available on ebay.

DT
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Darrin Tebbe
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Daniel White



Joined: 05 Jun 2007
Posts: 500
Score: 6196
Location: Atlanta

PostPosted: Mon Dec 22, 2008 9:03 am    Post subject: Reply with quote

Thanks fellas. At the beginning of last season, I bought a $20 trickle charger from Wal Mart, and haven't had any issues whatsoever. Have I just been lucky? Is my battery living on borrowed time?

What is a battery tender?
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Tonykart EVRR / Adkins Yamaha
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Ihor Bilyy
Site Admin


Joined: 10 Apr 2006
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Location: Canton, GA

PostPosted: Mon Dec 22, 2008 9:20 am    Post subject: Reply with quote



I bought mine in AutoZone
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Michael Jackson



Joined: 11 Apr 2006
Posts: 516
Score: 5336
Location: Lithia Springs Ga.

PostPosted: Mon Dec 22, 2008 10:20 am    Post subject: Reply with quote

Best of them all


http://www.valueteckenterprises.com/page8.html
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Darrin Tebbe
Out to pasture


Joined: 02 Jun 2007
Posts: 1212
Score: 28297
Location: Brooks, GA

PostPosted: Mon Dec 22, 2008 10:58 am    Post subject: Reply with quote

For small batteries all you really need is the Jr.:

http://www.batterytender.com/default.php?cPath=11_3

This place has them for about $30 shipped:
http://www.pacificbattery.com/batterytender0123.html

A trickle charger is better than nothing as long as you have a very low current one. You still run the risk of overcharging, however. The Battery Tender has circuitry that monitors charge state and turns off the charging when the battery is "topped off" then maintains the charge automatically.

DT
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Darrin Tebbe
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Seeley



Joined: 06 Oct 2008
Posts: 263
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PostPosted: Mon Dec 22, 2008 11:17 am    Post subject: Reply with quote

I bought my Jr from Marietta Motorsports, for almost $30 I think, possibly less, but certainly worth $30 regardless.
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