Motorbike usb cable

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Mgrhiki
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Motorbike usb cable

Post by Mgrhiki » Thu Jul 06, 2017 5:10 pm

Hi guys i recieve usb cable for motorbike today just wondering will it drain battery if i dnt remove fuse?or it should be fine if i m not charging anything?[IMG]https://uploads.tapatalk-cdn.com/201707 ... 69d0ee.jpg[/IMG][IMG]https://uploads.tapatalk-cdn.com/201707 ... 6ba629.jpg[/IMG][IMG]https://uploads.tapatalk-cdn.com/201707 ... b01910.jpg[/IMG]

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Re: Motorbike usb cable

Post by Mawsley » Thu Jul 06, 2017 5:16 pm

You got no off switch on that image - so 'yes' it will drain the battery unless you wire it into part of the loom that goes dead, like the headlight dip beam.

If the bike is being ridden frequently it won't matter, if it's being left standing but on trickle then again no problem.
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Re: Motorbike usb cable

Post by Gerontious » Thu Jul 06, 2017 5:21 pm

erm. if it has nothing plugged into it.. like a phone or sat nav. then how on earth can it drain a battery?
A wonderful thing is work, I could watch it all day.

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Re: Motorbike usb cable

Post by Baldrick » Thu Jul 06, 2017 5:23 pm

Splice it into a switched live and you'll be much better off.

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Re: Motorbike usb cable

Post by Mgrhiki » Thu Jul 06, 2017 5:24 pm

Thats what i m saying?how can it drain battery but some of my friend told me that it drain?

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Re: Motorbike usb cable

Post by Joeman » Thu Jul 06, 2017 5:30 pm

It will draw a small current even with nothing plugged in as it will still be working to convert 12v to 5v.
If you left it long enough it would flatten your battery.
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Re: Motorbike usb cable

Post by Mgrhiki » Thu Jul 06, 2017 5:35 pm

Thanks for the reply guys at the moment what i am doing is i keep fuse under my seat so when i need to charge something i put back the fuse.thanks for help

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Re: Motorbike usb cable

Post by rob m » Thu Jul 06, 2017 5:45 pm

If there's nothing plugged then no it won't. I have a USB adapter directly connected to my bike's battery along with a Garmin sat nav mount. Neither have caused my battery to drain.

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Re: Motorbike usb cable

Post by bonio » Thu Jul 06, 2017 5:57 pm

Interesting... I plugged one of these cables into my DIN socket a couple of weeks ago, left the bike for a few days, and when I next looked, the battery was a flat as the Fens. I still can't work out if it was the plug what did it, or whether I'd somehow managed to leave the Sat Nav powered on.
Two Soups

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Re: Motorbike usb cable

Post by Jamie125 » Thu Jul 06, 2017 9:05 pm

+1 on the fact if there is not a USB cable in there it shouldn't be converting 12v - 5v.

This is what I will be getting:
http://www.ebay.co.uk/itm/12V-Waterproo ... 1438.l2649

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Re: Motorbike usb cable

Post by Joeman » Thu Jul 06, 2017 9:12 pm

Jamie125 wrote:
Thu Jul 06, 2017 9:05 pm
+1 on the fact if there is not a USB cable in there it shouldn't be converting 12v - 5v.

This is what I will be getting:
http://www.ebay.co.uk/itm/12V-Waterproo ... 1438.l2649
You really think a cheap Chinese usb cable has the additional circuitry to only start drawing current when a device is connected??
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Re: Motorbike usb cable

Post by Jamie125 » Thu Jul 06, 2017 9:16 pm

Joeman wrote:
Thu Jul 06, 2017 9:12 pm
Jamie125 wrote:
Thu Jul 06, 2017 9:05 pm
+1 on the fact if there is not a USB cable in there it shouldn't be converting 12v - 5v.

This is what I will be getting:
http://www.ebay.co.uk/itm/12V-Waterproo ... 1438.l2649
You really think a cheap Chinese usb cable has the additional circuitry to only start drawing current when a device is connected??
I remain hopeful :roll:

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Joeman
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Re: Motorbike usb cable

Post by Joeman » Thu Jul 06, 2017 9:19 pm

Buy a really switch and wire it up so that usb is only powered up when the bike is switched on. Easy enough to do and ensures zero current draw whilst the bike is not running.

viewtopic.php?f=5&t=62983
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Jamie125
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Re: Motorbike usb cable

Post by Jamie125 » Thu Jul 06, 2017 9:30 pm

Joeman wrote:
Thu Jul 06, 2017 9:19 pm
Buy a really switch and wire it up so that usb is only powered up when the bike is switched on. Easy enough to do and ensures zero current draw whilst the bike is not running.

viewtopic.php?f=5&t=62983
Nice job you have done there, but if you look at my bike I don't have that much room for any more electrics (well I do but i hardly have any storage space as it is) and I am 99% certain it will end up on a day MOT with just a brake light + horn.

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Re: Motorbike usb cable

Post by Mr Fro » Thu Jul 06, 2017 9:46 pm

Jamie125 wrote:
Thu Jul 06, 2017 9:30 pm
I am 99% certain it will end up on a day MOT with just a brake light + horn.
You don't need a brake light chum.

See what I did there? Decreased your electric shiz by 50% in the blink of an eye. ;-)

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