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Topic: Using Battery Tender pigtail to power heated gear?  (Read 757 times)
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« on: October 04, 2011, 08:11:06 AM »
My BT SAE pigtail has a 7.5A fuse.  I'd like to connect that (thru an SAE-coax adapter) to power the Powerlet heated glove liners I just purchased, which are rated 24W per pair. The liners came with a pigtail that has a 15A fuse. Is my 7.5A fuse insufficient? If not, should I go up to 10A or to 15A, and is there any danger in doing so? The BT pigtail appears to be at least as heavy gauge as the Powerlet's. Thanks Experts O' Electrons!
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« on: October 04, 2011, 08:11:06 AM »
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« Reply #1 on: October 04, 2011, 08:31:33 AM »
Someone may complain, but I would have no problem at all slapping in a larger fuse and using the BT cable. I've chopped those things up. It's a heavy gauge wire. I think it's 18. It should handle the current. It's a direct connect to the battery. I don't see a problem.
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« Reply #2 on: October 04, 2011, 08:34:51 AM »
^ wut he said.
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« Reply #3 on: October 04, 2011, 08:46:06 AM »
24W per pair?  That sounds low.  If so, its only 2 amp at 12 volts so your 7.5a fuse should be good.  Just carry a spare higher fuse.  
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« Reply #4 on: October 04, 2011, 08:50:48 AM »
I use a 15A and run jacket liner & gloves.
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« Reply #5 on: October 04, 2011, 09:17:37 AM »
Quote from: County Tar on October 04, 2011, 08:46:06 AM

24W per pair?  That sounds low.  If so, its only 2 amp at 12 volts so your 7.5a fuse should be good.  Just carry a spare higher fuse.  


could be they are fused higher cuz the initial draw is higher? carrying a spare 15A fuse is good advise, in any case
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« Reply #6 on: October 04, 2011, 09:34:24 AM »
If its a resistance heat device the wattage rating should be volts time the amperage draw at max, right?  Its not like a motor that has a higher starting amperage.   Headscratch
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« Reply #6 on: October 04, 2011, 09:34:24 AM »

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« Reply #7 on: October 04, 2011, 10:57:13 AM »
I like my dial-in rheostat to adjust the temp.  Thumbsup
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« Reply #8 on: October 04, 2011, 11:18:51 AM »
Quote from: County Tar on October 04, 2011, 09:34:24 AM

If its a resistance heat device the wattage rating should be volts time the amperage draw at max, right?  Its not like a motor that has a higher starting amperage.   Headscratch


true enough -- I was grasping at straws to figure out why they fused it as high as they did
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« Reply #9 on: October 04, 2011, 11:50:46 AM »
Thx for the quick and useful replies! Maybe I'll experiment.  I assume the lowest amperage fuse that doesn't blow under normal conditions is generally the one to use? BTW, per Powerlet, 24W total for the pair is correct; maybe lower 'cuz it's liners and not gloves?
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« Reply #10 on: October 04, 2011, 01:32:23 PM »
Quote from: Doug Just Doug on October 04, 2011, 11:50:46 AM

I assume the lowest amperage fuse that doesn't blow under normal conditions is generally the one to use?


Yessir!
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