Battery draw with 2 USB power sockets? - Stromtrooper Forum : Suzuki V-Strom Motorcycle Forums
Techy World! GPS, Electronics, etc Electronics forum

Reply
 
LinkBack Thread Tools Display Modes
post #1 of 11 Old 06-20-2012, 05:36 PM Thread Starter
Stromthusiast!
 
SnoPro753's Avatar
 
Join Date: Aug 2010
Location: Iowa
Posts: 107
Battery draw with 2 USB power sockets?

I have purchased two Burns Moto USB Power Sockets for my DL650. (See Socket Here)

My question: If I have both my iPod and Android phone plugged into both sockets while I turn off the bike for sightseeing, etc, will the 2 amp combined draw from the two usb sockets drain my battery very quickly??

The way I understand it, the battery is rated 100ah. If the draw is 2ah from both sockets, then I would theoretically have 50 hours of juice in the battery. Using a safety factory of 60% needed to start the bike, 40ah at 2 amp draw would be 20 hours of charging before trouble right? Also, the iPod and Android would only need fours total to charge and then the draw would drop significantly leaving lots of battery life left.

My reason for question and knowledge quest is these are the only two electrical accessories I plant to add to the DL650. So I believe that a relay and block is not needed for my application.

Would you agree?

08 DL650 Flat Black
(Formerly: [URL="https://www.stromtrooper.com/stromtroopers/73004-changed-my-username-windharvester-snopro753-pics-inside.html#post788292"]WindHarvester[/URL])
SnoPro753 is offline  
Sponsored Links
Advertisement
 
post #2 of 11 Old 06-20-2012, 05:51 PM
Stromthusiast!
 
eye.surgeon's Avatar
 
Join Date: Apr 2010
Location: Central California
Posts: 875
I'm not the most expert electrician on the forum but I think you'll be fine, those are both very low-draw accessories.

'09 Wee (sold)
2012 Ducati Multistrada 1200 S Touring
2006 BMW K1200LT

Last edited by eye.surgeon; 06-20-2012 at 05:53 PM.
eye.surgeon is offline  
post #3 of 11 Old 06-20-2012, 06:43 PM
Stromthusiast!
 
CanadianFZ6's Avatar
 
Join Date: Dec 2008
Location: Kichener/Waterloo Ontario, Canada
Posts: 1,856
Quote:
Originally Posted by SnoPro753 View Post
I have purchased two Burns Moto USB Power Sockets for my DL650. (See Socket Here)

My question: If I have both my iPod and Android phone plugged into both sockets while I turn off the bike for sightseeing, etc, will the 2 amp combined draw from the two usb sockets drain my battery very quickly??

The way I understand it, the battery is rated 100ah. If the draw is 2ah from both sockets, then I would theoretically have 50 hours of juice in the battery. Using a safety factory of 60% needed to start the bike, 40ah at 2 amp draw would be 20 hours of charging before trouble right? Also, the iPod and Android would only need fours total to charge and then the draw would drop significantly leaving lots of battery life left.

My reason for question and knowledge quest is these are the only two electrical accessories I plant to add to the DL650. So I believe that a relay and block is not needed for my application.

Would you agree?
Your battery is 10ah not 100... @ a 2 amp draw... (with the engine off) the battery would be dead in 5 hours... However, cell phones, iPods and gps draw way less than 2 amps...

2015 DL650AL5 in Blue

Last edited by CanadianFZ6; 06-20-2012 at 06:46 PM.
CanadianFZ6 is offline  
 
post #4 of 11 Old 06-20-2012, 06:51 PM
$tromtrooper
 
SCraig's Avatar
 
Join Date: May 2006
Location: Nashville, TN
Posts: 3,722
You need to add a fuse to that socket. According to the photograph there is not one there.

The battery is 10ah as was said. It is possible for a fully discharged battery in those devices to pull an amp or more when they start charging unless the internal charging circuit on the devices is regulated to less.

Scott Craig - Nashville, TN
Red '06 Suzuki DL650 - Red '07 Honda VFR800 - My Bike Page
SCraig is offline  
post #5 of 11 Old 06-20-2012, 06:54 PM Thread Starter
Stromthusiast!
 
SnoPro753's Avatar
 
Join Date: Aug 2010
Location: Iowa
Posts: 107
Quote:
Originally Posted by CanadianFZ6 View Post
Your battery is 10ah not 100... @ a 2 amp draw... (with the engine off) the battery would be dead in 5 hours... However, cell phones, iPods and gps draw way less than 2 amps...
Thanks for the reply. I feel like the guy from the movie Office Space, "I always mess up one really important detail like a decimal place."

So I need to nail down the draw. The USB power socket website says it will draw 1ah max but charging an iPod classic or Android smart phone should be less?


Quote:
Originally Posted by SCraig View Post
You need to add a fuse to that socket. According to the photograph there is not one there.

The battery is 10ah as was said. It is possible for a fully discharged battery in those devices to pull an amp or more when they start charging unless the internal charging circuit on the devices is regulated to less.
The seller has a post on advrider.com promoting this product and he advised that it is internally fused and regulated to 1ah.

08 DL650 Flat Black
(Formerly: [URL="https://www.stromtrooper.com/stromtroopers/73004-changed-my-username-windharvester-snopro753-pics-inside.html#post788292"]WindHarvester[/URL])
SnoPro753 is offline  
post #6 of 11 Old 07-25-2012, 01:54 PM
Stromthusiast!
 
Join Date: Jun 2012
Location: Seattle
Posts: 1,060
Just do your charging while on the road and not worry about it? Or park at the top of a hill and use that cycle battery's juice to your heart's content
Yesler is offline  
post #7 of 11 Old 07-25-2012, 02:39 PM
$tromtrooper
 
tmcgee's Avatar
 
Join Date: Oct 2006
Location: Braintree, Massachusetts
Posts: 8,025
I suspect your devices will charge before the battery runs out of juice. I usually charge a phone overnight from the bike and have never had an issue.

-Tom (DL650AL2) (KA1TOX) (E-I-E-I-O)

This message and images are licensed under the Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported License. http://creativecommons.org
tmcgee is offline  
post #8 of 11 Old 07-25-2012, 03:47 PM
Stromthusiast!
Super Trooper!
 
Join Date: Jan 2009
Location: Odessa, Texas
Posts: 434
Your battery will not even know they are there,,,
Last summer on my ST I took a 3 week trip to Colorado
each night under the bike cover I would charge two Scala units,
My Mp3 and a phone,
My Battery never took a drop,
Mike
Iride is offline  
post #9 of 11 Old 09-07-2012, 06:53 PM
pmk
Stromthusiast!
 
pmk's Avatar
 
Join Date: Jul 2011
Location: boston area
Posts: 439
I just got a Burn's SAE-USB connector too. I'm gonna hook it up to a SAE pigtail off the battery that will also come in handy for my battery tender and with a small Slime mini-compressor.

It sounds like overnight charging of cell phones should be a problem -- good deal.

How about running a compressor? Do it with the moto on or off?

pmk
pmk is offline  
post #10 of 11 Old 09-07-2012, 07:00 PM
FORUM GODFATHER.....R.I.P. PAT
 
greywolf's Avatar
 
Join Date: Jan 2006
Location: Evanston IL USA
Posts: 38,049
Garage
A compressor is a big draw. Run the engine and use a wire gauge and fuse appropriate to the compressor manufacturer's instructions.

Pat- 2007 DL650A was ridden to all 48 contiguous states. I didn't quite make it to 17,000 miles on the 2012 DL650A.
Nicknames I use to lessen typing, Vee = 2002-2012 DL1000s. Vee2=2014-2016 DL1000s. Wee = 2004-2011 DL650s. Glee = 2012-2016 DL650s
See https://www.stromtrooper.com/general...nicknames.html

Please vote in the poll on what Strom(s) you have at https://www.stromtrooper.com/informa...-you-have.html
greywolf is offline  
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Stromtrooper Forum : Suzuki V-Strom Motorcycle Forums forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in










Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome