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Old 11-15-2012, 07:54 PM   #1
ShooterDave OP
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AUX Electrical help.....

I'm trying to get ready for an upcoming trip and need some help with the power for my accessories.

I have a digital camera that has a wall charger for the battery. I was wondering if there is any way to wire in a wall plug? for the battery. Maybe take an extension cord and cut the end off??? I have no idea...

The other thing I need to wire in is my Ipod. I was just going to take the cord I have for connecting it to the computer and cut it shorter. Then grab the positive line and negative line and wiring them in. The problem I have is that it uses a usb plug, so I don't know which wires are the pos and neg. Is there a usb power plug I can actually wire into the bike?


I think I've heard of usb plug I can use so there is no splicing of any wires. So I guess what I'm mainly needing help with is the power plug for the camera.

Any help will be great, thanks.
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Old 11-15-2012, 08:19 PM   #2
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Get yourself a 12V receptacle or several. Cyclegear.com, MotorcycleSuperstore.com, Ebay, Walmart, autoparts stores, and many other places have 12V receptacles made for weathering the elements on a moto. Install 1 or several. Make sure you use an appropriate fuse in the power wire, as close as practical to the source of power (battery, splice into bike's harness, etc.).

Find out what amperage draw your camera charger is rated at. Then find a little 120VAC-to-12VDC inverter that easily exceeds that amperage output. Find someplace safe from the elements for it. I usually put mine in my tankbag. Plug in your charger and you're all set.

Do NOT splice in a cut USB cord. USB inputs are NOT 12V like your typical moto's battery. USBs are typically 5V. Your USB devices could be damaged by 12V. Buy a 12V-to-USB adapter. I bought a nice little dual-output one for $8 at a truckstop. Walmart also has them. One output is like 2 amps. The other is 1 amp or so.

If you're not comfortable with wiring/crimping/soldering/dielectric-greasing/heat-shrinking/taping/testing/looming/zip-tying electrical circuits, watch some youtube videos of similar projects and have an experienced friend show you what they would do.

Once you get the hang of it, you can re-wire your entire bike and add auxiliary circuit-breaker blocks.
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Old 11-15-2012, 08:24 PM   #3
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205'd

Here's a start on the USB. I can't help with the camera charging, but the camera make and model will help. Does it have a rechargeable battery or does it use AA batts like mine?

http://americancrossroaders.com/

Oh, and this is where the link in Dave's sig took us in the summer of 2010. Ya didn't think we'd ferget didya?

35,052 miles.

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ER70S-2 screwed with this post 11-15-2012 at 08:41 PM
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Old 11-15-2012, 09:39 PM   #4
ShooterDave OP
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Quote:
Originally Posted by ER70S-2 View Post
205'd


Oh, and this is where the link in Dave's sig took us in the summer of 2010. Ya didn't think we'd ferget didya?

35,052 miles.



Hahaha Not sure if anyone remembered or not. When I took that trip I was but a wee lass. Now I'm a lot better and more confident with the stuff.... mostly.

For the USB part I found this....


I knew they existed, just took some digging. Now for the battery charging part.........
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Old 11-15-2012, 09:41 PM   #5
ShooterDave OP
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Quote:
Originally Posted by Kommando View Post
Get yourself a 12V receptacle or several. Cyclegear.com, MotorcycleSuperstore.com, Ebay, Walmart, autoparts stores, and many other places have 12V receptacles made for weathering the elements on a moto. Install 1 or several. Make sure you use an appropriate fuse in the power wire, as close as practical to the source of power (battery, splice into bike's harness, etc.).

Find out what amperage draw your camera charger is rated at. Then find a little 120VAC-to-12VDC inverter that easily exceeds that amperage output. Find someplace safe from the elements for it. I usually put mine in my tankbag. Plug in your charger and you're all set.

Do NOT splice in a cut USB cord. USB inputs are NOT 12V like your typical moto's battery. USBs are typically 5V. Your USB devices could be damaged by 12V. Buy a 12V-to-USB adapter. I bought a nice little dual-output one for $8 at a truckstop. Walmart also has them. One output is like 2 amps. The other is 1 amp or so.

If you're not comfortable with wiring/crimping/soldering/dielectric-greasing/heat-shrinking/taping/testing/looming/zip-tying electrical circuits, watch some youtube videos of similar projects and have an experienced friend show you what they would do.

Once you get the hang of it, you can re-wire your entire bike and add auxiliary circuit-breaker blocks.
This has me a little baffled. Are you saying to use an inverter? Also how would I wire it into the bike?
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Old 11-15-2012, 10:08 PM   #6
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So here is what I got when I checked out the charger.

On the back it says: Input: ~100V-240V 50/60Hz 4-7VA 2W
Output: 4.2V 0.25A


If what you are suggesting is basically just a "plug" then I'd also like to use another charger I have for a better camera that will also be going on the trip.

--------------------------------------------------------
That reads: | Input: 100V-240V AC 50/60Hz |
| 22VA (100V) |
| -30VA (240V) |
| Output: 8.4V DC 1.2A |
----------------------------------------------------------
Input: 0.24A (100V) - 0.14A (240)


Not sure if the input numbers below the box are there to better accurately describe the power or not. Unfortunately I'm not very knowledgeable with electronics and their numbers. When I was on my trip I just took the gps wires and cell phone wires and wired them directly to the battery with some fuses. Other than that I'm haven't really done any other wiring. So I really have no idea what I'm doing here for this "plug". Having seen these numbers, will one "plug system" able to do both of these chargers?

Unfortunately since time is an issue someone saying "do this" is probably the best option. However I'd like to learn the reasons behind it if possible. All that I currently know about dong this would be an inverter for my car. And of that I know that it takes the cars 12V and somehow turns it into the increased amount of power that a wall socket makes. Then you just plug whatever device into it, and the device brings it down to whatever it needs.

Any help is appreciated.
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Old 11-16-2012, 06:06 AM   #7
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Your USB adapter will be fine for anything that needs to be charged via a US cable. You're camera charger is another story. Like Komando said, you need an inverter to go from 12 volts DC that your bike supplies to 120 volts AC that your camera charger needs. The problem with this is the inverters are not real efficient, and if you plan on doing this on your XRL you're probably asking for charging problems. Not sure where you plan on staying at nights, but could you charge your camera battery at night say at a campground or a hotel? Maybe check to see if the camera manufacture has a car charger option for your camera that can plug into a 12 volt cigarette lighter outlet. The USB devices wont pull many amps and could be left on the battery even with the bike shut off for an hour or so, but an inverter or battery charger for the camera is going to run down the battery in a hurry. Don' leave power to it with the bike shut off.
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Old 11-16-2012, 08:32 AM   #8
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If you're not concerned about weatherproofing, just wire up a 12V/Cigarette plug to the bike and then use one of these:


They make a variety of types and sizes. If you use a tankbag, you can run the wire to that and put the 12V outlet in your tankbag. As posted earlier, your bike is making 12V DC. You need an inverter to make it 110AC (typical 110V wall wart) or some type of regulator to make it 5V DC (USB). That Bestek thingy above does both. It's a little bulky, but a pretty simple solution.
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Old 11-16-2012, 09:03 AM   #9
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I'm using it on my 07 V-Strom 650. Unfortunately power availability is an issue. Currently I have some heated gloves and a heated vest wired into the bike. Both of which I'm sure will be used on my upcoming trip. My girl and I are going from SoCal out to Carlsbad NM and back, plus some extra. Since it has two headlights, I have installed a headlight cutoff switch that gives me 55 watts extra available. So with the vest and gloves running at full power, and the headlight off, I have about ~20-30 watts available. Yes, I have installed a voltmeter to keep an eye on things. My curiosity now is... If I went with an inverter, how much power would it draw? Obviously I can turn things off or down to accommodate for the extra power draw, but are we talking like a huge amount of power or very little? What involved in bumping it from 12V to 120V?
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Old 11-16-2012, 11:51 AM   #10
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Butters just posted two options for bumping your 12v to 120v. Look at your camera charger, it should have input votlage and amps, and output voltage and amps. Volts x Amps gets you watts. so if your camera charger is rated at 120v ac @ .5 amps (or 500 ma) 120x.5=60 or 60 watts.
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Old 11-16-2012, 12:33 PM   #11
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Yes I understand that. The numbers I posted in the post above lists exactly what the backs of the chargers read.

My main concern is understanding the science behind it and what that means for my system. Does the draw from the charger determine what the draw on the system is ultimately going to be? like if the charger only draws 60 watts to charge the battery. Does that mean it will only pull 60 watts from the bike EVEN though its going thru the converter? Doesn't the converter itself put different demands on the bike's system then the charger ultimately does since the charger drops it down to a lower voltage and the inverter bumps it up higher?

Maybe your are saying it exactly how it should be said and I'm just not understanding it since my knowledge when it comes to electronics and the meaning behind the numbers is limited. How does the converter bump the 12V up to 100V, and what does that do for the wattage?
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Old 11-16-2012, 12:44 PM   #12
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Understanding inverters pdf
http://www.jaycar.com.au/images_uploaded/inverter.pdf

I would limit using a power inverter too much. Do you have two batteries for the camera? Just charge them up on stops or overnight.
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Old 11-16-2012, 05:33 PM   #13
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From here http://www.powerdriveinverters.com/choose.html

To determine the size vehicle alternator needed to keep up with a specific inverter, you need to convert AC wattage to DC amperage (the value vehicle alternators are measured in) In the example below, you would need a 91 amp alternator to provide a continuous draw of a 1000 watt inverter:

Convert AC Watts to DC Amps:
AC WATTS 12 x 1.1 = DC AMPS
Example: 1000 Watts 12 = 83.33 x 1.1 = 91.66

once you have the DC amps figured out you can take 12 x the DC amps to find your wattage.

course,that would make a 150 watt inverter pull about 165 watts, but I would assume that would be at full 150 watt load. Your first charger pulls about 2 watts and the 2nd pulls about 22 watts (you can read VA or volt amps as watts). So instead of using the max output of the inverter I think I would use the load of the device plugged in plus maybe another 5 watts as a wag for what ever heat is built up in the coils. So 27 watts on the AC would end up being around 30 watts on the DC side assuming my math isn't screwed up
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Old 11-16-2012, 06:06 PM   #14
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Your humility is refreshing Dave! But the short of it is what JWhitmore posted above. Even more succinctly, those devices simply don't draw much power. I would think even the meekest of charging systems wouldn't have a problem with them. Not to mention, you're just topping off the batteries in the camera and the USB tops out at under an amp for 5 volts (so under 5 watts).

If it was me, I wouldn't even really concern myself too much with the load because it is so small. But one thing I would do is wire it through a relay trigger by switched power, or at least through switched power. That way you don't run down your battery when you park your bike and leave all those electrics still running.
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Old 11-16-2012, 07:52 PM   #15
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OK I think I need to explain what I'm doing a little better. The usb port is for the ipod I'm going to be charging up at the dash while listening to it while riding. The inverter is for the two cameras that my girl is bringing on the trip with us. One charger is for the big $1000 camera, and the other is for the simple point and shoot camera. Each use a rechargeable battery, not AA's. I was planning on putting the inverter, and chargers under the seat so they can charge while we are riding. I was also going to route the connections thru my fuse box which will make it a switched circuit that will be off when the ignition is also off. So no need to worry about it draining the battery.

I am getting a little overwhelmed with the whole numbers and volt, amps, watts, and what not. Which is exactly why I plugged everything in the way I did when I went on my trip around the country, and why I have done the same for this bike. I'm beginning to think it will just be easier to plug them in when we have the chance. I didn't have a charger for my phone/music device for over a month when I was on my big trip and got along just fine even though that was using a massive constant draw. So I'm sure I will be just fine with a simple camera.

The main reason why I was wanting to charge off the bike is because we very rarely stay at hotels. When we travel its on the cheap. So being able to power everything you have with you off the bike, means you are totally self sufficient other than food, water, and gas. Makes camping and being off the grid much easier.
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