New Member RX-7 Technical Post your first technical questions here, in an easy flame free environment, before jumping into the main technical sections.

Battery suggestion

Old 06-25-14, 02:26 PM
  #1  
Junior Member
Thread Starter
 
DTGPETER's Avatar
 
Join Date: Jun 2014
Location: CA
Posts: 4
Likes: 0
Received 0 Likes on 0 Posts
CA Battery suggestion

Because I do not often drive my '95 R2 very often the battery will go dead between uses. Even with a trickle charger I only get 2 or 3 years. Anyone suggest a particular battery that has a very long in-car storage life?
Old 07-03-14, 12:41 PM
  #2  
Hey...Cut it out!

iTrader: (4)
 
Akagis_white_comet's Avatar
 
Join Date: Dec 2007
Location: St Louis, MO
Posts: 2,067
Received 291 Likes on 190 Posts
Why not just disconnect the battery is you know it will be sitting for awhile? Seems like a waste of money to keep feeding it new batteries.

How long does it take your R2 to run its battery from full to dead? Might be wise to check its parasitic draw to make sure it's within spec. IIRC, it should be around 100ma or less.

As far as a battery recommendation, I've had excellent results with my Deka Intimidator
Old 07-03-14, 01:36 PM
  #3  
Urban Combat Vet

iTrader: (16)
 
Sgtblue's Avatar
 
Join Date: Oct 2003
Location: Mid-west
Posts: 12,011
Received 862 Likes on 611 Posts
What do you mean by "trickle charger"? It could be over-charging.
I bought a (relatively) cheap battery from one of the chain parts stores (business account) and put a GOOD battery tender on it. That was over 5 yrs ago. Car is stored from about November to April every year. And even during the driving season it can be parked for a week or two between drives w/o that tender and it fires up just fine. I also have an antique car with the same brand battery and tender. That battery is (IIRC) a year older and doing fine.
Point is, you can get really spendy on a high dollar battery, but, I think a GOOD quality battery tender is as important.
Old 07-03-14, 02:31 PM
  #4  
Boilermakers!

iTrader: (157)
 
ZE Power MX6's Avatar
 
Join Date: Nov 2002
Location: Chicago, IL
Posts: 3,681
Received 357 Likes on 262 Posts
I have a Miata battery from Advanced, have it for a year and a half now and I disconnect it when I park the car (quick disconnect from the breaker), only charged it once after the long winter this year and that was for just in case.
Old 07-04-14, 03:55 PM
  #5  
Junior Member

iTrader: (3)
 
So_Seven's Avatar
 
Join Date: Jul 2014
Location: Canada, BC
Posts: 37
Likes: 0
Received 1 Like on 1 Post
I think a lot of variables need to be accounted for. How often is the approximate interval between drives? As well, what temperature is the norm where you live? When you buy your new battery, be sure to check the CCA and other specs. Try checking out Shorai batteries! They seem pretty neat, at only 5 pounds with a trickle charger and comparable specs to an Odyssey PC680. Brother has one and he swears by it. Problem is, it's pricey! Try checking the forums for more information =)
Old 07-05-14, 05:14 PM
  #6  
Junior Member
Thread Starter
 
DTGPETER's Avatar
 
Join Date: Jun 2014
Location: CA
Posts: 4
Likes: 0
Received 0 Likes on 0 Posts
Thanks for the Shorai suggestion.
Old 07-05-14, 05:16 PM
  #7  
Junior Member
Thread Starter
 
DTGPETER's Avatar
 
Join Date: Jun 2014
Location: CA
Posts: 4
Likes: 0
Received 0 Likes on 0 Posts
A trickle charger connects to the battery like for a jump start, but provides a small constant charge of a few hundred mA to overcome parasitic losses.
Old 07-05-14, 05:17 PM
  #8  
Junior Member
Thread Starter
 
DTGPETER's Avatar
 
Join Date: Jun 2014
Location: CA
Posts: 4
Likes: 0
Received 0 Likes on 0 Posts
Do you know what the draw on an FD should be? I have suspected the stereo had been a culprit, but I have removed it's fuse with no difference.
Old 07-05-14, 07:46 PM
  #9  
roTAR needz fundZ

iTrader: (1)
 
Join Date: Aug 2002
Location: Freeland, MI
Posts: 2,614
Likes: 0
Received 31 Likes on 31 Posts
Originally Posted by Akagis_white_comet
Why not just disconnect the battery is you know it will be sitting for awhile? Seems like a waste of money to keep feeding it new batteries.

How long does it take your R2 to run its battery from full to dead? Might be wise to check its parasitic draw to make sure it's within spec. [b]IIRC, it should be around 100ma or less.[\b]

As far as a battery recommendation, I've had excellent results with my Deka Intimidator
Been answered for ya buddy
Old 07-05-14, 10:53 PM
  #10  
Urban Combat Vet

iTrader: (16)
 
Sgtblue's Avatar
 
Join Date: Oct 2003
Location: Mid-west
Posts: 12,011
Received 862 Likes on 611 Posts
As I understand it a maintainer takes the battery up to capacity and then shuts off...it doesnt constantly "charge". That will kill a battery as you describe. Same thing happens occasionally when the internal voltage regulator goes bad on an alternator.

I don't recall off hand what normal draw is on a FD...but a healthy battery should last dormant a few weeks at least. . Easy enough to isolate with a multimeter at the terminal and pulling fuses if you suspect too much.
Old 07-10-14, 05:43 PM
  #11  
Junior Member
Thread Starter
 
DTGPETER's Avatar
 
Join Date: Jun 2014
Location: CA
Posts: 4
Likes: 0
Received 0 Likes on 0 Posts
Problem resolved - it was phantom draw though a partially corroded car stereo connection direct to the battery. There was about 50mA flowing that way. Gone now.
Thanks to everyone.
Old 08-30-14, 01:56 AM
  #12  
Junior Member
 
WankelAE86's Avatar
 
Join Date: Nov 2011
Location: Long Island, NY
Posts: 14
Likes: 0
Received 0 Likes on 0 Posts
Are you still selling the FD if so please contact me.
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
HalifaxFD
Canadian Forum
126
05-09-16 07:06 PM
The1Sun
1st Generation Specific (1979-1985)
7
09-18-15 07:13 PM
The1Sun
New Member RX-7 Technical
5
09-15-15 04:45 PM
The1Sun
1st Generation Specific (1979-1985)
0
09-07-15 10:21 PM


Thread Tools
Search this Thread
Quick Reply: Battery suggestion



All times are GMT -5. The time now is 01:27 PM.