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Usb Socket.. Fuse And Wiring?


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#1 rubdub

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Posted 10 July 2017 - 08:57 PM

Hey guys,

 

So I'm going to attempt to wire in a usb socket to my MPI this week.

 

Reading through previous threads on this, I'm planning on taking power from the heater switch and earthing on the lower dash rail.

 

Would a 5A fuse blade be ok? Also, I have some 17 amp cable in the shed, would this be ok to use?

 

Cheers folks 



#2 KernowCooper

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Posted 10 July 2017 - 09:23 PM

A usb socket is 5v so its stepped down from the cars 12v system and the are normally 500Ma so light load, there is a green accessory radio feed very near to that location which you could use, a 5amp fuse or a 2amp and the wire if you already have it is ok properly fused, but you could use a lighter weight wire like

0.5mm 16/0.20mm Thin Wall Cable
Nominal Current Rating: 11.0 amps



#3 rubdub

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Posted 10 July 2017 - 09:33 PM

Cheers Kernow Cooper! I never thought about the accessory for the radio, much handier! 

 

Thanks! 


Edited by rubdub, 10 July 2017 - 09:35 PM.


#4 lawrence

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Posted 14 July 2017 - 07:11 AM

I would say don't bother with a 500ma one and go for a higher rating. If it's to charge a phone or satnav check what the current one gives out. My car is fitted with a 3amp one personally.

#5 Juniors mini

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Posted 14 July 2017 - 11:43 AM

You may also have to adapt you changing cable to allow fast charge otherwise it will charge at USB/PC rate which is around 500ma.

Edited by Juniors mini, 14 July 2017 - 11:43 AM.


#6 WiredbyWilson

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Posted 20 July 2017 - 11:13 AM

I concur with the above re getting appropriate output sockets.

 

I use outlets in my kits that offer a 1A and a 2.1A output as they will charge iPhones, Smartphones etc much faster than the cheap cigarette lighter adaptors. 

 

I've tested them and you can actually use Sat Nav and my kits will charge the phone faster than the battery depletes. I also fit a 3A fuse to protect everything.



#7 rubdub

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Posted 21 July 2017 - 03:09 PM

Cheers lads! Yeah it has both 1A and a 2.1A outputs on it. Hopefully fitting this weekend if I can get my car back from the mechanic tomorrow! 

 

Feckin sills! 

 

Cheers! 



#8 Bungleaio

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Posted 24 July 2017 - 08:45 PM

I have one of these which it wired directly from the battery http://www.12voltpla...ket-5v-48a.html

 

I've put a relay on it so that it only has power when the ignition is on, I figured I can't leave something plugged in and it drain the battery that way.






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