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Old 01-08-2013, 01:55 PM   #1
mtntrails OP
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2012 R1200GS - Battery Charging

Howdy folks. It's good to be back in the GSpot. I haven't had a BMW for a few years.

I just picked up a new Triple Black 2012 R1200GS. There is a Gerbings plug wired directly to the battery. Using an adaptor, is it OK to use a standard Battery Tender on this bike or do I need to buy the BMW charger that goes in to factory pigtail with the LED flashies on it? I use the Gerbings plugs with an adaptor to hook up Battery Tenders on all of my other bikes with no issues.

Thanks in advance.
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Old 01-08-2013, 02:01 PM   #2
SourKraut
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That will work fine. I put the powerlet socket wired directly to the battery in place of the factory bmw socket on mine.

It is just a regular 12V battery.
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Old 01-09-2013, 01:24 AM   #3
mtntrails OP
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Thanks SourKraut - much appreciated!
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Old 01-09-2013, 02:46 AM   #4
onesaintsfan
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Dealer

will say different. Says Can-Bus can get fried. Dealer will say
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Old 01-09-2013, 03:29 AM   #5
everycredit
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Also, BMW uses state-of-the-art technology in terms of electrical circuits being tri-phased. Meaning, the circuit has a positive, neutral, and negative (ground). A BMW tender is required as a regular DC circuit battery tender will void your warranty and melt your electronics.
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Old 01-09-2013, 03:41 AM   #6
freyke
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I have used a basic battery tender directly connected to my battery on my 2011 R1200GS (18,000 Miles) since I bought the bike new in Nov of 2011. NO issues. Here is the one I have.
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Old 01-09-2013, 03:53 AM   #7
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Quote:
Originally Posted by everycredit View Post
Also, BMW uses state-of-the-art technology in terms of electrical circuits being tri-phased. Meaning, the circuit has a positive, neutral, and negative (ground). A BMW tender is required as a regular DC circuit battery tender will void your warranty and melt your electronics.
Not to be a jerk, but what you're decribing is applicable to AC thoery? It seems you're really only decribing a single phase of which would require a HOT, NEUTRAL (AKA return) and GROUND (AKA Safety Ground). Typically most AC houseold systems are two phase "Y" Alternating Current.

The Battery is 12VDC - no phase is applicable. Just Positive and Negative (ground).

Regards,
Kevin
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Old 01-09-2013, 03:54 AM   #8
marty hill
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I have a battery tender wired direct to the battery. Have done this on every year 12GS since they came out in '04. Anyone who says this isn't possible or is incorrect is WRONG!
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Old 01-09-2013, 05:35 AM   #9
JimVonBaden
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Quote:
Originally Posted by marty hill View Post
I have a battery tender wired direct to the battery. Have done this on every year 12GS since they came out in '04. Anyone who says this isn't possible or is incorrect is WRONG!
So long as you run the tender directly to the battery there is no risk to the BMW electronics!

No need for the BMW tender either. IMHO put the Battery Tender on the bike over night once a week and you are done. If you ride more than an hour straight, and do not do a lot of short trips all the time, a tender is not necessary.

Jim
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Old 01-09-2013, 06:08 PM   #10
def
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Originally Posted by freyke View Post
Typically most AC houseold systems are two phase "Y" Alternating Current.

Regards,
Kevin
That would be single phase and there is no delta Y involved.
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Old 01-09-2013, 06:43 PM   #11
BeachMoto
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I have been using an older BMW charger (not the CANBUS type, I think it was around $40 or so when I bought it) connected to a SAE pigtail wired directly to the battery for over three years on my '09 GS. Zero issues. I plug my heated jacket liner to the same pigtail (no, not at the same time )
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Old 01-10-2013, 02:58 AM   #12
mtntrails OP
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Thanks guys! I appreciate the input.
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Old 01-10-2013, 03:17 AM   #13
freyke
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Originally Posted by def View Post
That would be single phase and there is no delta Y involved.
If you're takling DC you are correct, there is no phase involved.

Most homes in the US are 110VAC 2 Phase "Y" 60Hz referenced to ground (208VAC referenced between phases) 150-200AMP service.

Most commercial applications in the US are 110VAC 3 Phase "Y" (208VAC referenced between phases ) 200AMP + service.

Ships (US) and mobile AC platforms are 3 Phase 110VAC "D" 60Hz Referenced between pahaes (AKA floating ground) (220VAC volts is stepped up via transformer).

R,
Kevin
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Old 01-10-2013, 08:10 AM   #14
SourKraut
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Originally Posted by mtntrails View Post
Thanks guys! I appreciate the input.
I tried to head off the controversy in post #2 but every time this question gets posted it turns into advanced electrical theory and charging algorithm nonsense.

It is just a 12V battery people!
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Old 01-10-2013, 01:10 PM   #15
BeachMoto
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Quote:
Originally Posted by SourKraut View Post
I tried to head off the controversy in post #2 but every time this question gets posted it turns into advanced electrical theory and charging algorithm nonsense.

It is just a 12V battery people!
How else are we going to get our post count up :)


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