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16-05-09, 04:17 PM | #1 |
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Sat Nav Power Adapter
I have a power cable adapter on my bike (fitted by the previous owner) that was used to run heated gloves or waist coats. I really want to power a Tom Tom 910 from this adapter but have no idea where to get the right lead or converter. Any ideas anyone?
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16-05-09, 06:22 PM | #2 | |
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Re: Sat Nav Power Adapter
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You won't need any converters as the bike battery is 12v too. HTH |
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16-05-09, 06:34 PM | #3 |
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Re: Sat Nav Power Adapter
Sounds like a plan - thanks!
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16-05-09, 06:50 PM | #4 |
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Re: Sat Nav Power Adapter
Check the voltage range the tomtom adapter will accept. The SV chucks out about 15v which is enough to fry some 12v devices. I got hold of a 12v regualted power supply so I could provide a relatively stable 12 feed to my powered kit with sensitive needs.
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16-05-09, 07:13 PM | #5 |
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Re: Sat Nav Power Adapter
Hadn't thought of that. Although surely if you use a 12V fuse, it'd prevent that from happening.
Last edited by joshmac; 16-05-09 at 07:16 PM. |
16-05-09, 07:15 PM | #6 | |
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Re: Sat Nav Power Adapter
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That will stop it going over current, not over voltage. Actually before the pedants jump in it will stop it going over power, but either way it will not stop it going over voltage.
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16-05-09, 07:23 PM | #7 |
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Re: Sat Nav Power Adapter
I thought the tomtom chargers had a power regualtor circtuit in them to stop that happening anyway. Meh, I'm probably wrong
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16-05-09, 07:34 PM | #8 |
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Re: Sat Nav Power Adapter
It probably will, but you'll have to check the acceptable input range. Most for cars are limited to 13.8v peak. Suzuki bike are somewhat notorious for high charging voltages. Accumen had to modify their over-voltage sensors for Suziki as they kept alarming.
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16-05-09, 07:54 PM | #9 |
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Re: Sat Nav Power Adapter
Pedant: over current, not over power. Current provides the heating effect, which is what makes fuses blow. Irrelevant i know
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16-05-09, 08:45 PM | #10 | |
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Re: Sat Nav Power Adapter
Quote:
2. If you put an in-line fuse it won't stop the slightly higher voltage. I.e if you get 15v out of the battery and it's 12v +/- 10% you'll mess the socket up. But if you put a meter across the terminals first it'll tell you for definite. |
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