BMW Garage BMW Meets Register Search Today's Posts Mark Forums Read
M2 Technical Topics > Mechanical Maintenance: Break-in | Oil & Fluids | Servicing | TSB | Recalls > Battery tender hook up

Post Reply
 
Thread Tools Search this Thread
      03-06-2017, 07:34 AM   #1
rwm001
New Member
3
Rep
5
Posts

Drives: MG DCT
Join Date: Mar 2017
Location: OH

iTrader: (0)

Battery tender hook up

What is the best method to hook up a battery tender?
Should I just close the trunk on the wire or can you utilize the cigarette
charger?
Any ideas are welcome.

Thanks
Appreciate 0
      03-06-2017, 07:40 AM   #2
DivideBYZero
Never underestimate the Home-Bowl
DivideBYZero's Avatar
United Kingdom
460
Rep
821
Posts

Drives: F87 M2<E92 M3<E46 M3
Join Date: Jul 2011
Location: UK

iTrader: (0)

Garage List
Use a gap in the bodywork and close it.
Appreciate 1
      03-06-2017, 08:04 AM   #3
Bluenose-2er
Captain
Bluenose-2er's Avatar
522
Rep
763
Posts

Drives: 2017 LBB 6MT M2
Join Date: May 2013
Location: Halifax

iTrader: (0)

I just hook it up under the hood, using the poles provided there, and secure the hood one click. Then there is enough room for the wire without being pinched or damaging any weatherstripping.
Appreciate 2
BMWM5NYC346.00
BMWZ4806.50

      03-06-2017, 08:24 AM   #4
gmzanatta
Colonel
gmzanatta's Avatar
Canada
1797
Rep
2,969
Posts

Drives: LBB 6MT M2 # 660/713
Join Date: Feb 2016
Location: NB

iTrader: (0)

Quote:
Originally Posted by Bluenose-2er View Post
I just hook it up under the hood, using the poles provided there, and secure the hood one click. Then there is enough room for the wire without being pinched or damaging any weatherstripping.
This. It's the best method.
Appreciate 0
      03-06-2017, 08:35 AM   #5
Semi-Poor
Lieutenant
Semi-Poor's Avatar
United_States
141
Rep
599
Posts

Drives: 2017 M2 Coupe
Join Date: Nov 2013
Location: Northeast USA

iTrader: (0)

__________________
2017 M2 Coupe Black Sapphire Metallic
Appreciate 1
BMWZ4806.50

      03-06-2017, 08:44 AM   #6
rwm001
New Member
3
Rep
5
Posts

Drives: MG DCT
Join Date: Mar 2017
Location: OH

iTrader: (0)

Thanks for all the help.

The photo makes it crystal clear.
Appreciate 1
      03-06-2017, 08:49 AM   #7
M3 Adjuster
Banned
Albania
7830
Rep
11,819
Posts

Drives: 1M, X1 M Sport, E46 325ic
Join Date: Mar 2008
Location: Dallas, Tx

iTrader: (0)

I actually usually use the rear because I back my car into my garage always. I close the trunk down on the wire but it doesn't need to latch!

I do have an outlet on the side wall and may use the front instead.
Appreciate 0
      03-06-2017, 10:14 AM   #8
David1
Brigadier General
David1's Avatar
United_States
565
Rep
3,719
Posts

Drives: 09 E92 09 X5
Join Date: Mar 2007
Location: Columbus, OH

iTrader: (0)

Mine is hooked up under the hood also but I run the wires out behind the hood down the passenger side fender so I can close the hood.
__________________
2017 M2 Alpine White|Black with Blue Stitching Dakota Leather|Executive Pkg|DCT
Appreciate 0
      03-06-2017, 04:57 PM   #9
Semi-Poor
Lieutenant
Semi-Poor's Avatar
United_States
141
Rep
599
Posts

Drives: 2017 M2 Coupe
Join Date: Nov 2013
Location: Northeast USA

iTrader: (0)

Quote:
Originally Posted by David1 View Post
Mine is hooked up under the hood also but I run the wires out behind the hood down the passenger side fender so I can close the hood.
I just leave hood open till the next drive.
__________________
2017 M2 Coupe Black Sapphire Metallic
Appreciate 0
      03-06-2017, 05:04 PM   #10
M3 Adjuster
Banned
Albania
7830
Rep
11,819
Posts

Drives: 1M, X1 M Sport, E46 325ic
Join Date: Mar 2008
Location: Dallas, Tx

iTrader: (0)

Quote:
Originally Posted by Semi-Poor View Post
Quote:
Originally Posted by David1 View Post
Mine is hooked up under the hood also but I run the wires out behind the hood down the passenger side fender so I can close the hood.
I just leave hood open till the next drive.
Leaving the hood or decklid up definitely helps ensure that one doesn't drive off with the battery tender attached.
Appreciate 1
      03-07-2017, 11:34 AM   #11
David1
Brigadier General
David1's Avatar
United_States
565
Rep
3,719
Posts

Drives: 09 E92 09 X5
Join Date: Mar 2007
Location: Columbus, OH

iTrader: (0)

Quote:
Originally Posted by M3 Adjuster View Post
Leaving the hood or decklid up definitely helps ensure that one doesn't drive off with the battery tender attached.
I almost did that once!
__________________
2017 M2 Alpine White|Black with Blue Stitching Dakota Leather|Executive Pkg|DCT
Appreciate 0
      03-10-2017, 12:29 AM   #12
Chuck W.
Second Lieutenant
Chuck W.'s Avatar
223
Rep
237
Posts

Drives: '12 535I M-Sport
Join Date: Mar 2009
Location: Agoura Hill (LA) CA

iTrader: (0)

I hard wired my 535I and did the M2 the same way. I ran the wires out of the bottom right air scoop. The wires push up into the scoop when not in use. You will need to add some length to reach though. The charging nuts come off to reveal studs that the rings go right over.

And... I have a small plaque I set on the drivers windshield wiper to remind me to unplug it.





__________________
2016 BMW M2 LBB 6 Sp / ED Pick Up on 07/12/2016 / US Pick Up on 09/22/2016
2012 BMW 535I M-Sport / ED Pick Up on 12/03/2011; US Pick Up on 01/27/1012
1995 Porsche 993 Cab
Appreciate 2
      03-10-2017, 07:57 AM   #13
Stu Pedasho
Second Lieutenant
Stu Pedasho's Avatar
United_States
193
Rep
258
Posts

Drives: Clearing garage space
Join Date: Sep 2016
Location: The Motor City

iTrader: (0)

Wink

Quote:
Originally Posted by Chuck W. View Post
I hard wired my 535I and did the M2 the same way. I ran the wires out of the bottom right air scoop. The wires push up into the scoop when not in use. You will need to add some length to reach though. The charging nuts come off to reveal studs that the rings go right over.

And... I have a small plaque I set on the drivers windshield wiper to remind me to unplug it.
That is nifty. I just used the word "nifty" in a forum post. I'm officially old.
Appreciate 3
Destroya368.50
Chuck W.223.00
///M TOWN2481.00

      03-10-2017, 08:10 AM   #14
Bluenose-2er
Captain
Bluenose-2er's Avatar
522
Rep
763
Posts

Drives: 2017 LBB 6MT M2
Join Date: May 2013
Location: Halifax

iTrader: (0)

Quote:
Originally Posted by M3 Adjuster View Post
Leaving the hood or decklid up definitely helps ensure that one doesn't drive off with the battery tender attached.
Though not as visually obvious, if you close it just one click there is an angry red warning light on your dash that the hood is open. I prefer the hood partially closed as I also put a cover on my car. If you drive off with a red warning light glaring at you, you deserve whatever happens
Appreciate 1
      03-10-2017, 08:32 AM   #15
LinkF1
Private First Class
United_States
186
Rep
196
Posts

Drives: MG M2 & IB X5 40e
Join Date: Oct 2014
Location: Central Virginia

iTrader: (0)

I have a solution! Why not drive it more?!

JK, great solutions in this thread, hope I never have to utilize them.
Appreciate 0
      03-10-2017, 03:43 PM   #16
M3 Adjuster
Banned
Albania
7830
Rep
11,819
Posts

Drives: 1M, X1 M Sport, E46 325ic
Join Date: Mar 2008
Location: Dallas, Tx

iTrader: (0)

Quote:
Originally Posted by Stu Pedasho View Post
Quote:
Originally Posted by Chuck W. View Post
I hard wired my 535I and did the M2 the same way. I ran the wires out of the bottom right air scoop. The wires push up into the scoop when not in use. You will need to add some length to reach though. The charging nuts come off to reveal studs that the rings go right over.

And... I have a small plaque I set on the drivers windshield wiper to remind me to unplug it.
That is nifty. I just used the word "nifty" in a forum post. I'm officially old.
Appreciate 0
      08-11-2019, 09:23 AM   #17
cb804
Lieutenant
768
Rep
469
Posts

Drives: 340 xDrive, M2C
Join Date: Jul 2014
Location: Chicago

iTrader: (0)

Reviving an old thread... does anyone know what is needed to do the hardwire like Chuck W. did in his post? Total newb in the area. I have the BMW tender which I believe is a rebranded CTEK.

It comes with clips and cables. I'm assuming I use the round eyelet cables but then need some type of extension to get it to run to the bottom of the grill... where so I get that?

Thanks
Attached Images
 
Appreciate 0
      08-11-2019, 05:08 PM   #18
RAM_F30_F87
First Lieutenant
RAM_F30_F87's Avatar
United_States
175
Rep
386
Posts

Drives: 2017 M2 LBB 6MT; 2012 328i 6MT
Join Date: Dec 2015
Location: Central PA

iTrader: (0)

Garage List
https://f87.bimmerpost.com/forums/sh...37&postcount=4
Appreciate 0
      08-11-2019, 06:44 PM   #19
HawaiiShrimp
Enlisted Member
HawaiiShrimp's Avatar
United_States
55
Rep
48
Posts

Drives: 2017 LBB M2 (MT)
Join Date: Jun 2018
Location: So Cal

iTrader: (0)

Quote:
Originally Posted by DivideBYZero View Post
Use a gap in the bodywork and close it.
Same here. I think this is the best way.
__________________
Current Vehicles: 2017 BMW M2 6MT
Future Vehicles: 2016 Porsche Cayman GT4, 2011 911 GT3RS
Appreciate 0
      08-15-2019, 08:15 AM   #20
cb804
Lieutenant
768
Rep
469
Posts

Drives: 340 xDrive, M2C
Join Date: Jul 2014
Location: Chicago

iTrader: (0)

I'm trying to hardwire a battery tender under the hood. Found a extension that will let me connect the tender by running the wire out the grill or by the wiper area. I'm trying to avoid opening the hood each time I want to use the tender.

My problem is I don't know how to loosen and remove the two bolts that the tender connects too. It looks like a six sided star.
Attached Images
 
Appreciate 0
      08-16-2019, 01:21 PM   #21
longbeachbluem2
Private First Class
longbeachbluem2's Avatar
United_States
232
Rep
146
Posts

Drives: '76 2002 / '17 F87 M2
Join Date: Mar 2016
Location: MA

iTrader: (0)

Garage List
2017 BMW M2  [0.00]
1976 BMW 2002  [0.00]
2004 Audi Allroad  [0.00]
I have mine wired up in the trunk (pics in other winter hibernation / battery thread). Theoretically the posts are after the battery management device the car has so it should be the same as connecting temporarily under the hood. Someone recently asked me to take better pictures, but haven't remembered to do so each time I drive the car.

https://f87.bimmerpost.com/forums/sh...7&postcount=14
__________________
Appreciate 0
Post Reply

Bookmarks

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not 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



All times are GMT -5. The time now is 07:41 PM.




m2
Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2020, vBulletin Solutions Inc.
1Addicts.com, BIMMERPOST.com, E90Post.com, F30Post.com, M3Post.com, ZPost.com, 5Post.com, 6Post.com, 7Post.com, XBimmers.com logo and trademark are properties of BIMMERPOST