View Full Version : RIM/Blackberry Device powered from LT
ehaughn
Aug 22nd, 2006, 8:31 am
Has anyone hooked up a Blackberry/RIM device by powering it off the USB port to the cycle?
Any ideas on how to do this?
Not sure if I can hook up the power and ground from the USB directly to the battery. It will probably fry doing this.
messenger13
Aug 22nd, 2006, 9:00 am
I don't have one, but I have a recommendation.
Buy a car charger for your RIM/Blackberry.
Remove the cigarette lighter portion of the charger.
Wire the rest directly to the LT's battery, or your fuse block. Just make sure that it's fused.
DaveDragon
Aug 22nd, 2006, 9:01 am
If you get a car charger for the Blackberry you can wire it in and know it will work correctly without harming the BB.
I use my BB on the bikes a lot.
mneblett
Aug 22nd, 2006, 10:08 am
Has anyone hooked up a Blackberry/RIM device by powering it off the USB port to the cycle?
Any ideas on how to do this?
Not sure if I can hook up the power and ground from the USB directly to the battery. It will probably fry doing this.Interesting thought -- I'll look into this. I've been carrying a BB charger on longer trips, but IIRC, the voltage spec for USB includes 12V, so one should be able to hack the end off a cable and take 12V directly from the bike -- that certainly is the case with IEEE 1384; that's how I power my old second generation iPod (hack-off Firewire cable to unused power source in radio housing).
I want to confirm the USB charger output voltage really is 12v, so I'll probe my charger with a voltmeter tonight and report back. If it is, I'm but a hack-and-solder away from on-board charging :)
meese
Aug 22nd, 2006, 1:23 pm
Careful there, Mark. I believe the USB voltage spec is 4.40V - 5.25 Vdc.
FireWire has a much broader input range (something like 9 - 30 Vdc) so a direct bike connection isn't a problem. That may mean this direct connection trick wouldn't work on a newer USB 2 iPod either.
I'd stick with a modified car charger cable.
mneblett
Aug 22nd, 2006, 1:28 pm
Careful there, Mark. I believe the USB voltage spec is 4.40V - 5.25 Vdc.
FireWire has a much broader input range (something like 9 - 30 Vdc) so a direct bike connection isn't a problem. That may mean this direct connection trick wouldn't work on a newer USB 2 iPod either.
I'd stick with a modified car charger cable.Thanks, Ken -- that's *precisely* why I wouldn't hook something like this up until I probed with a voltmeter. :) Wouldn't want the magic smoke to escape now, would we? ;)
meese
Aug 22nd, 2006, 1:45 pm
I know you're smart enough to figure that out, Mark. But I thought I'd add the details to the thread for future searches. :)
In the mean time, I gotta go to work and help put the magic smoke into the little black boxes. :)
ehaughn
Aug 22nd, 2006, 4:21 pm
I believe the USB can only handle 5 VDC.
How do I modify the cigarette adapter?
Anyone got any pics on this?
messenger13
Aug 22nd, 2006, 4:33 pm
I believe the USB can only handle 5 VDC.
How do I modify the cigarette adapter?
Anyone got any pics on this?I'll take a pic of my cell phone cable that I'm about to install on my GT tonight. I'll post it in a few minutes.
messenger13
Aug 22nd, 2006, 4:49 pm
Here's a pic of my modified cell phone charger cable that used to plug directly into a cigarette lighter socket. It's a bit ugly :o, but it works and nobody sees it anyway. It worked for over 40K miles on my LT.
ehaughn
Aug 24th, 2006, 8:19 am
Thanks Joe.
I assume I could get any USB charger for the cig lighter socket and it should work???
messenger13
Aug 24th, 2006, 8:28 am
I assume I could get any USB charger for the cig lighter socket and it should work???Yep. Just don't be surprised at how tiny the wires are inside those things.
ehaughn
Aug 24th, 2006, 8:36 am
One more question.
What is the power plug name used on these bike? Used for running accessories. There is a socket by the passenger by the intercomm and also by the drivers left foot.
messenger13
Aug 24th, 2006, 8:40 am
One more question.
What is the power plug name used on these bike? Powerlet.
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