heated grips - Snowblower Forum : Snow Blower Forums
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post #1 of 22 Old 02-23-2020, 08:48 AM Thread Starter
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Question heated grips

Hey.

I purchased a Kimpex 12-170 handlebar heaters. I installed them by splicing in the headlight wire. They do work but they are very weak on high.

What did I do wrong?
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post #2 of 22 Old 02-23-2020, 10:39 AM
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they might need dc power to really put out heat and headlights are usually a/c. that is how the ones i installed on my machine are. they didn't like a/c but warm up pretty nicely when running on d/c.

arien 520 snow blower 6.5hp swap
yardworks 31AH6WKF515
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post #3 of 22 Old 02-23-2020, 10:55 AM
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I didn't think that a resistance load cared whether it was ac or dc. I would guess that your alternator isn't large enough to power both the lights and hhg. I had the same issue with my Toro, so I put a couple of switches so I could have light and/or hhg, but with both, the light got dim, and hhg was not as hot.
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post #4 of 22 Old 02-23-2020, 11:15 AM Thread Starter
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Would an ac to dc rectifier work?
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post #5 of 22 Old 02-23-2020, 11:35 AM
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it would but may be best to try running some dc power to them first and see if it makes a difference. maybe try hooking them to a 12v battery or something first for testing purposes. i tested mine before i even installed them.

arien 520 snow blower 6.5hp swap
yardworks 31AH6WKF515
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post #6 of 22 Old 02-23-2020, 12:08 PM Thread Starter
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I actually tested them yesterday with a car battery and they do work well.
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post #7 of 22 Old 02-23-2020, 12:25 PM
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A pure resistor such as your grips doesn't care in the least whether it's provided ac or dc.
What it does care about is the amount of power being supplied.

From your comment that the grips warmed when supplied from a 12v car battery source then it's reasonable to conclude the engine alternator isn't rated to supply the power being demanded by the resistance value of the grips. Or, at the least, they're not being provided the power their resistance value can draw.

I think I remember the spec for my Ariens with heated grips as drawing something like 3 amps (at I-don't-know-how-many volts). That's a fair amount of current and many manufacturers didn't sell their products with alternators capable of supplying more than 20 or so watts. Because, if the blower wasn't built with heated grips then why waste money installing a more powerful alternator than is necessary? Usually, when a snow blower is built with heated grips it has more like 30 to 50 watt alternator installed.

There are many exceptions, like always, and many blowers without grips or lights were, nevertheless, built and pushed out the door with 50 or 60 watt alternators, whether they needed it or not.

Those are just guesstimate numbers; I don't have the specs for every blower. But the idea is valid.
Hope this helps.

Ariens 1124DLE
(*sold:Ariens ST27LE)
(*sold: John Deere TRS21)
Toro 821

Last edited by melson; 02-23-2020 at 12:48 PM.
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post #8 of 22 Old 02-23-2020, 12:40 PM Thread Starter
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Ok. I understand. I'll buy better gloves.

Thanks for the help.
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post #9 of 22 Old 02-23-2020, 12:46 PM
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Quote:
Originally Posted by Pauly1971 View Post
Ok. I understand. I'll buy better gloves.

Thanks for the help.
you can search thes forums as this question comes up quite a bit. someone here suggested installing a different rated stator or coil. I don't know which.

"It Feels Like Beer O'Clock "
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post #10 of 22 Old 02-23-2020, 02:51 PM
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Quote:
Originally Posted by [I
Pauly1971;1725087]Ok. I understand. I'll buy better gloves.
[/I]
Hah! Yep. As for gloves the best I've used in cold and wet conditions are the top-line Columbia. I hate to be a brand booster, but those $85 gloves never fail to amaze; even if fully soaked, dripping wet, my hands are warm. They might feel squishy but it's a warm squish. Never had gloves able to do that, don't know how they do that.

Ariens 1124DLE
(*sold:Ariens ST27LE)
(*sold: John Deere TRS21)
Toro 821
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