Getting Power To the Tank Bag - Page 2 - BMW K1600 Forum : BMW K1600 GT and GTL Forums
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post #11 of 17 Old 07-20-2018, 12:21 PM
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Quote:
Originally Posted by crazyarch View Post
Hummm. I was thinking the fuse was to protect the device from an over voltage situation as well as to protect the wiring. So if a device is rated for 2A, I need to make sure that only 2A gets to it for whatever reason more power tries to flow to that device. Maybe I need to rethink this?


BTW: If you're thinking just hook the thing up and be done with it, I get that. This is a hobby of mine, so making it stupid complicated is part of the fun!
Fuses don't protect against voltage. Fuses protect against current. They are related, but if you get a voltage high enough to damage the device, it is probably going to do so before the fuse blows. Plus, where is that extra voltage going to come from? If that happens, you've got much bigger problems than a few accessories.

Fuses limit how much current can be drawn by the device (or circuit downstream from the fuse). The circuit doesn't push current to the device, the device draws whatever current it demands. At a given voltage and operating condition, the device will draw a specific amount of current assuming the circuit can deliver it. A 2 A device on a 10 A circuit isn't going to start drawing 5 A because it could. It is still going to draw 2 A.

Think about your home...it has a bunch of 15 A circuits, each with 5-10 sockets. You can plug in 1000 alarm clocks or one hair dryer. That alarm clock on the same circuit as a hair dryer isn't a problem. If a short happens in either, the 15 A breaker will still trip, protecting the circuit and preventing a fire.
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post #12 of 17 Old 07-20-2018, 01:30 PM Thread Starter
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Quote:
Originally Posted by RefCat View Post
Fuses don't protect against voltage. Fuses protect against current. They are related, but if you get a voltage high enough to damage the device, it is probably going to do so before the fuse blows. Plus, where is that extra voltage going to come from? If that happens, you've got much bigger problems than a few accessories.

Fuses limit how much current can be drawn by the device (or circuit downstream from the fuse). The circuit doesn't push current to the device, the device draws whatever current it demands. At a given voltage and operating condition, the device will draw a specific amount of current assuming the circuit can deliver it. A 2 A device on a 10 A circuit isn't going to start drawing 5 A because it could. It is still going to draw 2 A.

Think about your home...it has a bunch of 15 A circuits, each with 5-10 sockets. You can plug in 1000 alarm clocks or one hair dryer. That alarm clock on the same circuit as a hair dryer isn't a problem. If a short happens in either, the 15 A breaker will still trip, protecting the circuit and preventing a fire.

Yes, I was not very careful in my wording. But what if there was a problem in the device or the line to the device? If it's on a common 10A circuit the digital breaker will not stop whatever the problem is until the draw exceeds 10A, which might be too late for a device rated at 2A. Is this not correct?


Anyway, this is somewhat of a moot point because a multi-device circuit will not allow remote control from the Neutrino Box.

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post #13 of 17 Old 07-20-2018, 04:02 PM
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If your device is drawing 10a you already have a problem.

Fuses limit current.

You can put 5x 2a devices on one 10a fuse. If one of those devices suddenly goes over 2a (or the cumulative load is more than 10a) the total current draw will exceed 10a and the fuse will blow.

If you have a device which suddenly shorts causing it to draw more than 10a the fuse will blow protecting everything upstream of the fuse and the wiring itself.

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post #14 of 17 Old 10-26-2018, 09:01 AM
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I just used an SAE 5-way adapter, connected to a powerlet plug on my GSA. 5-way SAE From there, you can get USB adapters, cigarette plugs, or whatever you need to connect from there. Allows me to charge my gopro batteries, phone, radar detector, and run a cord to me Sena when my riding day outlasts the battery.


Been trying to find a photo, as I don't remember where the plug is on the GTL. I installed one just to the left of where my tankbag goes on my GSA; not sure how far the stock one is on the GTL, but hoping it's close enough to make due when I go pick up the bike next month.

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post #15 of 17 Old 10-26-2018, 12:07 PM
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Here are some ideas.
https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1

Plug the above USB connection in to this converter and you can charge just about any modern thing out there. Of course you will need to start with a hot SAE plug.
https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1


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Last edited by Arizona Jim; 10-26-2018 at 12:10 PM.
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post #16 of 17 Old 11-25-2018, 09:10 PM
 
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Quote:
Originally Posted by Qbird66 View Post
Youíve already purchased a bag, but the power/cable management of RKAís Shiloh bag tipped me in that direction, and Iíve been quite pleased with it for 5 years.
as mentioned we do have a solution that we like, but you already have a bag. Here is how we accomplish electronics in the bag, and I have seen folks modify things to make it work better for them. You mentioned wanting a way to cut power to one device. You could run two sae power leads through our bag and just have one that is easy to disconnect.

here is a link to some of our goodies

and more specifically how we get power in and out. of course I'll always recommend our bag if asked!

another look at power coming in, remember the portal can bring power in from front or rear

We are a vendor here if your interested in our stuff! Hope this info helps.
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post #17 of 17 Old 11-26-2018, 03:33 PM
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I thought about hard wiring power to my tank bag but decided against it. I've already got several USB power banks, the largest of which is 24,000mAh and can power all my USB devices for an entire day. For shorter rides, a 5000 or 8000mAh works well. I prefer my tank bag "untethered" and can be easily removed & locked in my top case, if necessary.

FWIW, SW-Motech does make an electrified tank ring for my EVO Micro Quick-Lock tank bag. That's probably what I'll go with eventually.

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