|
|
|
|
| Author |
|
|
Registered
|
Battery advice
My 84 carrera has some kind of current drain. Then recharging the battery leads to boiled batteries and sulfate spills.
We have been able to track down the source of the current drain. Should I install a battery shut off or purchase a smart charger? M
__________________
Garage is empty Gone:96 TVR Chimaera, 05' Mazdaspeed MX5/89' Caterham Super Seven/84' Carrera/81' 911 SC targa/74' MGB |
||
04-03-2010, 01:45 PM
|
|
|
Registered
Join Date: Jun 2009
Location: Manhattan Beach, California. Factory Delivery-Original owner-Retired engineer
Posts: 5,238
|
Quote:
And, how old is the battery? Alternator output voltage? Should not exceed 14.5V. Specific gravity measurements?
__________________
1986 911 Targa. Per Road and Track magazine: Only in L.A.: In the window of a bar in Hermosa Beach, California. "Happy Hour prices during all car chases." Last edited by 86 911 Targa; 04-04-2010 at 09:58 AM.. |
||
|
04-03-2010, 02:10 PM
|
|
|
Registered
Join Date: Jun 2009
Location: ohio
Posts: 4,306
|
that is why i use agm batteries - no acid to spill out.
__________________
- He gave his father "the talk" - Once while sailing around the world he found a shortcut - He taught a german shepard how to bark in spanish He is.... nineball. I don't always drive sports cars, but when I do I drive a 1983 911SC Targa. Stay fast my friends. |
||
|
04-03-2010, 02:14 PM
|
|
|
RETIRED
|
I use a Optima Marine/Yellow top. Goes flat and charges back up. Sounds like you may have an issue besides the drain. I would check the battery terminals with a digital gauge.
12.5 at rest 12.8-13.0 at idle 13.0-14.0 at 2500 rpms.....anything more and you have a regulator issue. AFTER fixing that....put the gauge back on and pull fuses one at a time. Isolate your drain, then find it and fix it.....
__________________
1983/3.6, backdate to long hood 2012 ML350 3.0 Turbo Diesel |
||
|
04-03-2010, 02:29 PM
|
|
|
Make Bruins Great Again
|
It sounds like you fixed the drain. If you haven't then that is step one.
Take the battery out and neutralize the area where the acid spilled over. Try charging the battery it out of the car. If it still boils you may have a bad battery (most FLAPS will check it for free) or a bad charger. I love my Optima Red Top. No worries with acid spills and it doesn't have to be vented like a regular battery should be.
__________________
-------------------------------------- Joe See Porsche run. Run, Porsche, Run: `87 911 Carrera |
||
|
04-03-2010, 05:20 PM
|
|
1984 Porsche 911 3.2
Da cab
Max
