USB charger

[Chad Harlan]

I tried to search the area but found no bombs. I've just purchased Highway dirt bikes guards with the addition of the powerlet adapter plate. I would like to charge the the iphone or likely the $75 samsung burner phone for navigation and the gopro dual battery charger. I can't seem to figure if the stator can handle this load. I have replaced the stock headlight with LED so that frees up a few amps but will the stock stator/rectifier handle the loads of the dual USB situation? Also, lame question cuz I'm not near the bike at the mo, but is there a prearranged connector on the 14' exc models or do I have to go direct to another power supply like the headlight wire to supply the USB?  Thanks ya'll!!

[Horgh]

Most USB chargers charge at no more than 2 amps (some as low as 0.5 amps, some higher at 2.4 amps, but let's say average). At 12 volts, that's 24 watts. So, I would say you're more than ok.

I can't comment on the connector, but you can check behind the headlight to see if anything is open. If not, I would actually recommend running an auxiliary fuse box for any aftermarket accessories. I'm personally a fan of Eastern Beaver, his 3-circuit solution is pretty nice (but may be a tad too big for your bike) http://www.easternbeaver.com/Main/Wiring_Kits/Fuseboxes/3_Circuit/3_circuit.html

You could also try one of the Blue Sea blocks, for example: https://smile.amazon.com/Blue-Sea-Systems-5025-Blade/dp/B00SE6Z2WI

There may be other solutions out there, I'd be curious what others have done.

[Chad Harlan]

I saw somewhere that the stator puts out 195 watts on the 14' and newer. It was substantially higher than previous years, pre fuel injection. So I  was wondering if they added all that power for fuel injection and pump and nothing left to spare? I'm sure there is but don't want to stress the system.....

[jrodicus100]

Tapping the headlight wire will be fine. USB chargers use so little amperage that you don't have to worry. 

I avoided splicing by using this: https://www.motominded.com/collections/accessories/products/switched-accessory-plug-in-harness

Then I used this USB port: https://www.amazon.com/gp/product/B00I3P6QQG/ref=oh_aui_search_detailpage?ie=UTF8&psc=1

[bnr]

I set up the cigarette lighter female 12 volt plugs and just use the $5 USB charge adapters.   

[Horgh]

3 hours ago, jrodicus100 said:

Tapping the headlight wire will be fine. USB chargers use so little amperage that you don't have to worry. 

I avoided splicing by using this: https://www.motominded.com/collections/accessories/products/switched-accessory-plug-in-harness

Then I used this USB port: https://www.amazon.com/gp/product/B00I3P6QQG/ref=oh_aui_search_detailpage?ie=UTF8&psc=1

I like that accessory plug, but I'd actually use it as the trigger for a relay to power my accessory fuse panel for switched power. Otherwise you're running all the power through the stock wires you're piggy-backing off of. I realize a USB charger would probably be fine, but I don't like overusing stock wiring. That's why I run power directly from the battery.

For example, here is my accessory fuse box on the 1190. I'm running a LOT of things through it, all directly from the battery, a lot of it on the switched circuit.

[jrodicus100]

2 hours ago, Horgh said:

I like that accessory plug, but I'd actually use it as the trigger for a relay to power my accessory fuse panel for switched power. Otherwise you're running all the power through the stock wires you're piggy-backing off of. I realize a USB charger would probably be fine, but I don't like overusing stock wiring. That's why I run power directly from the battery.

For example, here is my accessory fuse box on the 1190. I'm running a LOT of things through it, all directly from the battery, a lot of it on the switched circuit.

Yep, makes sense if you're running more than a couple amps. The factory KTM dirtbike wiring is pretty thin. A USB port alone is not an issue to power directly from the headlight, but anything else - like aux lights, heated grips, etc - I would do what you've done.

Edited August 29, 2018 by jrodicus100

[Spud786]

10 hours ago, Chad Harlan said:

I saw somewhere that the stator puts out 195 watts on the 14' and newer. It was substantially higher than previous years, pre fuel injection. So I  was wondering if they added all that power for fuel injection and pump and nothing left to spare? I'm sure there is but don't want to stress the system.....

2015 Husky 501 FE's was quotes 195 watt, 2015 500's ktm EXC manuals state 200 watts and it was an upgrade from previous gen, they had to scale back on the size of the stator in 2017 to 167 watt.  Not sure on the 350's, its a totally different stator.

There's probably a good 80 watts for accessories on the big stator . Im only burning about 25 watts with my accessories,, really didn't effect my charging voltage at all . If you run accessories , and seeing that charge voltage in the mid 13's, you've pushed the limit. 

I would run directly  off the battery with fused wiring, or the keyed relay set up for multiple ports . Tying into the headlight, not my first choice.

Edited August 29, 2018 by Spud786

[Chad Harlan]

I think I’m going to go direct from the battery with a fuse and a switch. That HWDB panel has the space for a button. Thanks for the input guys!

[J.Johnson]

Amazon and cycle gear carry a good usb charger. Motopower motorcycle usb charger. It will charge an iPad efficiently if needed.