battery charger question - Stromtrooper Forum : Suzuki V-Strom Motorcycle Forums
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post #1 of 13 Old 04-17-2008, 01:04 PM Thread Starter
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battery charger question

Hello. I left my parking lights on and killed my battery. I borrowed a battery charger from a friend to get my Wee back on the road.

The charger has 3 settings:
6v/6amp, 12v/2amp, and 12v/6amp.

Which one should I use and for how long? I couldn't find an answer in my brief search. Thanks.
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post #2 of 13 Old 04-17-2008, 01:07 PM
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That's a car charger. You should be using 12V/1amp. You could jump start it from a car battery, the car not running is safest, than ride it for a few hours.

Pat- 2007 DL650A was ridden to all 48 contiguous states. I didn't quite make it to 17,000 miles on the 2012 DL650A.
Nicknames I use to lessen typing, Vee = 2002-2012 DL1000s. Vee2=2014-2016 DL1000s. Wee = 2004-2011 DL650s. Glee = 2012-2016 DL650s
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post #3 of 13 Old 04-17-2008, 01:13 PM Thread Starter
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Oops. Wrong forum. Mods, please move this to the maintenance section.
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post #4 of 13 Old 04-17-2008, 02:04 PM
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If

If it's dead, the 2 amp setting won't bother anything. But I'd check on the battery every so often to see if it is getting hot. If it is, give it a rest. Most chargers (well, of the cheap ones I have...) the amp setting is the max current. As the battery charges the amps fall off. If the charger has a meter, start it on the 6 amp setting, and see what the current actually is. Generally, so long as the battery does not overheat, more current won't bother it. The trouble comes when it is fuly charged, and you continue to run current through it.
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post #5 of 13 Old 04-17-2008, 02:16 PM Thread Starter
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Uuh. If I already used it on the 6v/6amp, is it probably toast?

I tried to start it after trying to charge it, but the alternator just clicked rapidly. The lights will come on and the fuel pump comes on, but slower and longer than normal.

I am looking at the meter on the charger and it registers 5amp when switched to 12v/6amp, 2.5amp on 12v/2amp, and nothing on 6v/6amp.

Last edited by Subicon; 04-17-2008 at 02:27 PM.
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post #6 of 13 Old 04-17-2008, 02:28 PM
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A pertinent side question....

Could you push-start the V-Strom with a dead battery?

[I][SIZE="2"]Now Wee-strom-less... [/SIZE][/I]
[I][SIZE="1"][COLOR=DarkGreen][FONT=Franklin Gothic Medium]"A car is a means of getting around that can be enjoyed
A motorcycle is a means of enjoyment that can be used to get around"[/FONT][/COLOR][/SIZE][/I]
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post #7 of 13 Old 04-17-2008, 02:45 PM
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I think you need some battery power to operate the fuel relay and pump. As far as charging goes, 12v and 2a and leave it for as long as it takes. A slower charge will be better for you.

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post #8 of 13 Old 04-17-2008, 02:45 PM Thread Starter
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I would think so. My old Ninja 250 had a dead battery and I push started it a few times. I would try to do that now if I wasn't trying to recover from a flu.

I set the charger to 12v/2amp for now and will monitor it every 30mins to see if it is getting hot.
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post #9 of 13 Old 04-17-2008, 04:10 PM Thread Starter
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Btw, thanks to all of you for the tips. I wish more enthusiast forums were half as helpful.
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post #10 of 13 Old 04-18-2008, 12:34 PM
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No way

No way a Vee can be push-started unless there's enough voltage to get the fuel pump up to pressure, and run the engine control computer. Maybe then. I assume the timing sensor would need to register engine rotation before the computer would energize the injectors, so you may need to push for a while, or have a nice long hill. Almost certainly, in that situation, you'd want to disconnect the headlight plugs while trying it.
If the charger reads 5 amps, and you were in a hurry, I'd leave it there, although you'd need to watch the battery closely to make sure you didn't overheat it. As long as the battery passes current, it'll probably be OK. In my experience, when the battery won't pass current when you hook up the charger, you know it is time for a new battery.
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