Can a charger drain a battery ?? - BMW Luxury Touring Community
 
LinkBack Thread Tools Display Modes
post #1 of 6 Old Nov 2nd, 2009, 7:02 pm Thread Starter
Senior Member
 
Join Date: Jun 2002
Location: Greenville, SC, USA
Posts: 2,396
Can a charger drain a battery ??

Suppose I leave a "smart" battery charger plugged into the K12GT 12V socket (direct to battery via a fuse), but leave the 115V AC charger plug unplugged. Is there any way that the smart battery charger could become a small parasitic load, slowly draining the battery ??
- Bob

Cowboy Bob Menton
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

Greenville SC USA
'07 K1200GT, '69 R60US (mint!)
'83 R80S (nee '83 R80RT)
"You can never escape the FOG (Fast Old Guys)"
bob_menton is offline  
Sponsored Links
Advertisement
 
post #2 of 6 Old Nov 3rd, 2009, 7:13 am
Senior Member
 
SilverBuffalo's Avatar
 
Join Date: May 2005
Location: St. Petersburg, FL, USA
Posts: 3,208
Re: Can a charger drain a battery ??

Like Dave said yes it can,
but it is a very low/slow battery "drain"
over time (weeks not days) it can and will deplete your battery.

I use a $5 appliance timer set for an hour a day to power my charger.


Hans
St. Petersburg FL

2002 K1200LTE
"Silver Buffalo" Totaled 5/06
2005 LT
"Esperanza"
BushtecGenesisTrailer
"Our preferred long distance carrier"



SilverBuffalo is offline  
post #3 of 6 Old Nov 3rd, 2009, 2:21 pm
Senior Member
 
mwnahas's Avatar
 
Join Date: Dec 2004
Location: Bedford Hts, OH, USA
Posts: 4,215
Re: Can a charger drain a battery ??

I'm not quite sure I understand? Why unplug it from the 110?
I just leave the charger plugged in for the bike's long winters nap.
If I unplug the charger from the wall I unplug it from the bike as well.

Just Go
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

Mike
Cleveland Ohio
2014 K1600 GTL Grey Wolf.
mwnahas is offline  
 
post #4 of 6 Old Nov 3rd, 2009, 2:40 pm
Lifetime Supporter
 
PMitchell's Avatar
 
Join Date: Aug 2006
Location: Hudson, OH, USA
Posts: 2,878
Re: Can a charger drain a battery ??

Quote:
Originally Posted by mwnahas
I'm not quite sure I understand? Why unplug it from the 110?
I just leave the charger plugged in for the bike's long winters nap.
If I unplug the charger from the wall I unplug it from the bike as well.
+1

pm
--
Life is too short to do anything
other than that about which you
are absolutely passionate . . .
Ride till you can't!

"Der Weg ist das Ziel"

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

2011 South Africa
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.


2014 The Dolomites of Italy, Alps of Switzerland & Austria and returning to Milan via the "Gold Coast" of the French Riveria.
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.


2016 Spain & Portugal
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.


2018 Central & Eastern Europe: Slovenia, Austria, Poland,Hungary, Czech Republic & Slovakia!

'18 R1200RTW
'00 K1200LTC (Dealer is taking on consignment!)
'90 K75-Sold to a new BMW owner (2016)
'62 R 50/2 (Rode hard and put away wet)-Sold in '81
'63 Vespa 150 (1st and only dirt bike!)
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Sold in '67


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
PMitchell is offline  
post #5 of 6 Old Nov 4th, 2009, 6:55 pm
Member
 
h2000fb's Avatar
 
Join Date: Nov 2006
Location: Crawford, TX, USA
Posts: 51
Re: Can a charger drain a battery ??

I never unplug mine. I have them for two different bikes, one JD Mower, my truck, and my MF tractor. My batteries all do very well just leaving them plugged in.
h2000fb is offline  
post #6 of 6 Old Nov 5th, 2009, 1:44 pm Thread Starter
Senior Member
 
Join Date: Jun 2002
Location: Greenville, SC, USA
Posts: 2,396
Re: Can a charger drain a battery ??

Thanks for the responses, folks. I guess my hangup with leaving it plugged into 115V AC is due to a friend who lost battery fluid over the winter. I strongly suspect that he had a defective smart charger. My bike storage is such that I can easily unplug the 115V AC connection; reaching the 12V socket on the bike is more difficult. Thanks again.

- Bob

Cowboy Bob Menton
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

Greenville SC USA
'07 K1200GT, '69 R60US (mint!)
'83 R80S (nee '83 R80RT)
"You can never escape the FOG (Fast Old Guys)"
bob_menton is offline  
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the BMW Luxury Touring Community 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











Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Similar Threads
Thread Thread Starter Forum Replies Last Post
Chronic battery drain lemiller K1200LT 12 Sep 15th, 2009 12:16 pm
Battery charger question PhantomK12LT Batteries, Chargers, & Electrical 5 Jul 24th, 2008 2:38 pm
Dog-Gone battery charger question! Yuck! wardenross K1200LT 17 Oct 24th, 2006 1:31 pm
Battery Charger bugged Batteries, Chargers, & Electrical 4 Dec 11th, 2005 9:55 am

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 Off
Trackbacks are On
Pingbacks are On
Refbacks are On

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