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      11-03-2008, 02:47 PM   #1
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ar design - how many of you guys are interested in a lightweight battery kit?

As the title states, how many guys would be interested in us producing a lightweight battery kit? I've been running a prototype in my car for about 3 weeks, and so far have had absolutely no issues. Would include a 21lb battery (as opposed to the what, 50lb OEM?) and the mounting system......

Feedback please!
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      11-03-2008, 02:56 PM   #2
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illl be down for that...
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      11-03-2008, 03:02 PM   #3
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lightening up the rear right side sounds good as long as the front left side is also lightened by the same amount in order to achieve the 50 to 50 weight distribution....is that possible?
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      11-03-2008, 03:04 PM   #4
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Absolutely. Few months of the South Beach diet for most drivers should take care of left side weight issue
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      11-03-2008, 03:37 PM   #5
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Quote:
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Absolutely. Few months of the South Beach diet for most drivers should take care of left side weight issue
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      11-03-2008, 03:57 PM   #6
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i actually contacted HP Autowerks about this today! i'm very interested....
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      11-03-2008, 04:18 PM   #7
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      11-03-2008, 04:35 PM   #8
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The lightweight battery is the best and easiest place to save weight!
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      11-03-2008, 05:10 PM   #9
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I was able to mount my Odyssey 21lb battery without a custom kit... just using standard battery mount parts and cables from Pep Boys . I've been running it for over a year without any issues.
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      11-03-2008, 05:13 PM   #10
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yeah 21lbs sounds good.. there are lighter ones out there but ive heard of issues (basically not having enough power?)

just make sure it works almost as good as stock
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      11-03-2008, 05:17 PM   #11
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Quote:
Originally Posted by JoosyJoos View Post
If the price is right!
You know it

Quote:
Originally Posted by Mr. 5 View Post
The lightweight battery is the best and easiest place to save weight!


Quote:
Originally Posted by sambonator View Post
I was able to mount my Odyssey 21lb battery without a custom kit... just using standard battery mount parts and cables from Pep Boys . I've been running it for over a year without any issues.
This will be a properly sorted billet mount....

Quote:
Originally Posted by sd390r View Post
yeah 21lbs sounds good.. there are lighter ones out there but ive heard of issues (basically not having enough power?)

just make sure it works almost as good as stock
I can supply a 7lb battery, but you'll need to put it on a maintainer every night.
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      11-03-2008, 05:38 PM   #12
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wasn't the main reason BMW put batteries in the trunk is so theres a more even weight distribution? I might be wrong.. but can anyone chime in?
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      11-03-2008, 05:52 PM   #13
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Sounds good but how about 17lb battery instead.
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      11-03-2008, 05:53 PM   #14
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Quote:
Originally Posted by MrZippy View Post
lightening up the rear right side sounds good as long as the front left side is also lightened by the same amount in order to achieve the 50 to 50 weight distribution....is that possible?
left front? you need a mod call diet
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      11-03-2008, 07:03 PM   #15
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Quote:
Originally Posted by GQ 335i View Post
Sounds good but how about 17lb battery instead.
Like I said, we can even get down to a 7lb battery - but for a daily driver, especially in cold climates, the 21lb battery is ideal.
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      11-03-2008, 07:20 PM   #16
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Quote:
Originally Posted by rdsport323 View Post
wasn't the main reason BMW put batteries in the trunk is so theres a more even weight distribution? I might be wrong.. but can anyone chime in?
There have been previous discussions on it... the fact is, weights change all the time on the car (mats, washer fluid, stuff in trunk, driver, passenger, gasoline).

The loss of 30lb of weight will more than likely improve performance all around than cause any issues with handling and balance of the car.
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      11-03-2008, 07:57 PM   #17
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Quote:
Originally Posted by sd390r View Post
yeah 21lbs sounds good.. there are lighter ones out there but ive heard of issues (basically not having enough power?)

just make sure it works almost as good as stock
True.
I started off with transfering my odyssey 15 lb battery that I used for my M3 over to the 335 and it was enough to start the car but things weren't working like my AC. The AC was working but I only had 1 fan speed.

Depending on the make of the battery, a 21 battery is perfect of our cars.
If you have very minimum of options then you can go with a 17 pounder and be fine.
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      11-03-2008, 08:24 PM   #18
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What about amps instead of just weight?
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      11-03-2008, 10:52 PM   #19
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lol i figure lightweight battery plus cf hood... evens out?
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      11-03-2008, 11:57 PM   #20
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Quote:
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lol i figure lightweight battery plus cf hood... evens out?
Drain the wiper fluid too I sometimes remove the front cowel as well... like it makes much difference (except psychologically )
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      11-04-2008, 12:14 AM   #21
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I possibly might be interested...........
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      11-04-2008, 12:56 AM   #22
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how much weight would it save from changing out the battery if using the 21lb battery?
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