USB charger install

[Haydl3]

Hi I have a Honda cbr600f 2012 and I’m looking at installing a usb charger and looking for the best way to wire it in any help please

[Nobby the Bastard]

[Haydl3]

Could I not wire to the ignition so it only works when the back me is running

[Haydl3]

Sorry bike

[kawakid]

Yes that's the way you should do it.

You will need a 12V relay, you will need some wire and some ends.

You will need to take a feed from the relay to your battery and you should use something sensible on the bike as trigger.

I used the rear number plate bike on my ER6 on my Z750 I used the live off the rear brake switch.

I'd put a small inline fuse in too.
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I've a twin and a 4.

[Haydl3]

I’ll have to find a relay and have a go.so I can’t just tap into something that needs the ignition without using a relay

[WD Forte]

You dont have to use a relay, but a fuse is a must to protect the rest of bike electrics in case of water ingress.
I fitted one to a scoot a while back and tapped into a 10A protected circuit with a 3A fuse to the usb thing so it powers up with ignition on

It aint burst into flames yet but we live in hope............
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bikers smell of wee

[Haydl3]

Is it one of these I need

[Haydl3]

I’ve put an inline fuse on it with a 5 amp fuse could I tap into the taillight

[kawakid]

[Haydl3]

I’ve put a pic on of a relay is it what I’ll need please

[sickpup]

I'm pretty sure your bike can take a genuine Honda Averto alarm so there is already an unused plug probably at the back in amongst the rear light wiring that is blanked off. You can simply plug into this plug for a USB charger so no need to hack the wiring or even fit a relay.

Most Hondas 500cc and above from about 2006if not even earlier had this feature, the touring bikes often had this and an additional one at the front to connect a quad harness to.

[Haydl3]

It doesn’t say or show anything in the wiring diagram

[Hong Kong Phooey]

Switched relay all day. Even without a device plugged in there is parasitic draw, I fitted one direct to battery and a week later flat battery.

I tested and didn't detect any drain but my meter isn't that good.

Have a ganders at Stinkers excellent write up.
https://www.bikechatforums.com/viewtopic.php?t=192684
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'81 CG125, '97 FZS600 : '99 CBR600F4, '09 KTM RC8

[Haydl3]

That’s great looks a bit complicated but I’m sure I can do it

[kawakid]

[Haydl3]

Thanks I’ll get one and give it a go

[Haydl3]

Will I still need an in-line fuse on my usb device if there’s one coming from the battery to the relay

[Meatybeaty]

[A100man]

Fuses are to protect the wiring in case the 'appliance' goes faulty. Use a fuse value somewhat below the rating of your chosen cable.

These chargers appear to be able to source up to 2A @5v so I guess only really need a 1A feed cable at 12V but sure, add some margin. Really not sure why you include any relay for this, just a switch to isolate in case there is some 'passive' current drain. Relays are mainly used to switch high loads via a low current rated switch.

Edit - OK I understand having read Stinkwheel's guide that using an switched live from the ignition to 'fire' the relay is helpful as you don't have to remember to turn off the'appliance' to save the battery.
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Now: A100, GT250A, XJ598, FZ750

Then: Fizz, RS200, KL250, XJ550, Laverda Alpina, XJ600, FZS600

[Haydl3]

Hi thanks for all the help and advice I’ve now installed the usb and it works a treat