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battery sulfation #3183583
11/10/13 07:43 AM
11/10/13 07:43 AM
Joined: Mar 2004
Posts: 21,112
Upstate NY
Donald Offline OP
Donald  Offline OP
Joined: Mar 2004
Posts: 21,112
Upstate NY
OK, I am trying to revive the battery in my pickup and have been reading some about battery sulfation and desulfation.

Some interesting videos on YouTube. One was the picture taken down the cell cap hole looking at the plates with one picture taken every other day for over a month. You could see the brown-tanish stuff disappear and the battery go back to normal plates and separators. However a comment was made that it takes about 1 day per pound of battery. Thats a long time.

BatteryMinder seems to have the best products to deal with sulfation. Other products mention desulfation but then complete the cycle in 8 hours or less.


2015 Subaru Forester 2.5 engine/CVT
2015 Ford F250 w/Powerstroke
2016 Subaru Crosstrek CVT (wife's)
Re: battery sulfation [Re: Donald] #3183586
11/10/13 07:45 AM
11/10/13 07:45 AM
Joined: Oct 2004
Posts: 8,315
Cincinnati, OH, USA
bullwinkle Offline
bullwinkle  Offline
Joined: Oct 2004
Posts: 8,315
Cincinnati, OH, USA
My Battery Minder has paid for itself several times over-just leave it on for a minimum of a week, it'll bring 'em back!


06 Ram 3500 CTD 4X4(FG Venturi), 93 GMC C3500 6.2, 89 F-450 7.3, 98 XJ 4.0(XG8A), 05 xB(XG3600), 18 Transit 3.7, 03 Merc Grand Marquis 4.6 2V(XG2)
Re: battery sulfation [Re: Donald] #3183599
11/10/13 07:55 AM
11/10/13 07:55 AM
Joined: Apr 2010
Posts: 1,084
Ontario , Canada
nitehawk55 Offline
nitehawk55  Offline
Joined: Apr 2010
Posts: 1,084
Ontario , Canada
It might work as long as there are no issues with any of the cells . Once a battery has been sulfated I'm not sure if it will have the capacity it should have , you may only have a smaller percentage .

Keep us posted , I've often thought of getting a battery minder or smart charger .

Last edited by nitehawk55; 11/10/13 07:59 AM.

05 Ford Five Hundred AWD 3.0 DOHC V6 CVT tranny
Re: battery sulfation [Re: Donald] #3183600
11/10/13 07:56 AM
11/10/13 07:56 AM
Joined: Mar 2004
Posts: 21,112
Upstate NY
Donald Offline OP
Donald  Offline OP
Joined: Mar 2004
Posts: 21,112
Upstate NY
Its often mentioned a "neglected" battery sulfates so I could see that for a boat, lawn tractor, generator, but would a vehicle battery sulfate that is used once or twice a week (30 min minimum drive) sulfate?


2015 Subaru Forester 2.5 engine/CVT
2015 Ford F250 w/Powerstroke
2016 Subaru Crosstrek CVT (wife's)
Re: battery sulfation [Re: Donald] #3183611
11/10/13 08:03 AM
11/10/13 08:03 AM
Joined: Oct 2004
Posts: 8,315
Cincinnati, OH, USA
bullwinkle Offline
bullwinkle  Offline
Joined: Oct 2004
Posts: 8,315
Cincinnati, OH, USA
Usually I've seen sulfation on ones that are neglected, or ran dead due to vehicles not being driven. I just used it on my brother's battery out of his '94 Cobra that sat undriven for 2 months+, he had jumped it, driven it several miles, and it didn't charge enough to restart it when he got back. Left the Minder on for a week, and AAP load tested it at 580 CCA on a 610 CCA battery (2 1/2 year old JC built WM Everstart battery). It doesn't fix everything, but it definitely makes a difference.


06 Ram 3500 CTD 4X4(FG Venturi), 93 GMC C3500 6.2, 89 F-450 7.3, 98 XJ 4.0(XG8A), 05 xB(XG3600), 18 Transit 3.7, 03 Merc Grand Marquis 4.6 2V(XG2)
Re: battery sulfation [Re: Donald] #3183628
11/10/13 08:17 AM
11/10/13 08:17 AM
Joined: May 2010
Posts: 9,463
out there
spasm3 Offline
spasm3  Offline
Joined: May 2010
Posts: 9,463
out there
+1 on the battery minder, My motorcycle battery goes on it every winter.


13 elantra 72k 5w30 QSUD
03 chevy avalanche 80k synpwr 5w30
17 mazda cx-5 7300 miles m1 0w30
Re: battery sulfation [Re: Donald] #3183639
11/10/13 08:28 AM
11/10/13 08:28 AM
Joined: Jun 2003
Posts: 17,815
Deplorable in apple valley, ca
Chris142 Offline
Chris142  Offline
Joined: Jun 2003
Posts: 17,815
Deplorable in apple valley, ca
I have a couple of chargers that are suppoeed to fix sulfated batteries and neither work. I've also tried Epson salt which didn't work either.

I think that a dead battery is just that...dead.


02 Wrangler carlube 5w30
87 F250 traveler 15w40
07 fjcruiser Chevron 10w30
Z400 castrol T 10w40
Can am maveric edge 5w40
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Re: battery sulfation [Re: Donald] #3183643
11/10/13 08:37 AM
11/10/13 08:37 AM
Joined: May 2010
Posts: 9,463
out there
spasm3 Offline
spasm3  Offline
Joined: May 2010
Posts: 9,463
out there
Battery Minder has a new charger i have not seen before. Its a small 1.5amp desulfator that also has temperature compensation. Its the model 1500.

http://batteryminders.com/12-volt-maintenance-charger-desfulator-1500


13 elantra 72k 5w30 QSUD
03 chevy avalanche 80k synpwr 5w30
17 mazda cx-5 7300 miles m1 0w30
Re: battery sulfation [Re: Donald] #3183743
11/10/13 10:50 AM
11/10/13 10:50 AM
Joined: Dec 2002
Posts: 42,299
New Jersey
JHZR2 Offline
JHZR2  Offline
Joined: Dec 2002
Posts: 42,299
New Jersey
The right way to desulfation is higher than normal charge voltages. The battery will gas, and water will need to be replaced (recall the opening vent cap thread).

Re: battery sulfation [Re: spasm3] #3183751
11/10/13 11:00 AM
11/10/13 11:00 AM
Joined: May 2003
Posts: 6,614
southeast US
friendly_jacek Offline
friendly_jacek  Offline
Joined: May 2003
Posts: 6,614
southeast US
Interesting, it also has a worldwide voltage support. Last time I was looking for a battery maintainer that would work in Europe, I had to go to ebay.
It's pricy though.

Re: battery sulfation [Re: Donald] #3183795
11/10/13 12:03 PM
11/10/13 12:03 PM
Joined: Jan 2006
Posts: 2,690
Idaho
SubLGT Offline
SubLGT  Offline
Joined: Jan 2006
Posts: 2,690
Idaho
Originally Posted By: Donald
.would a vehicle battery sulfate that is used once or twice a week (30 min minimum drive) sulfate?


Yes, a lead acid battery kept under less than 100% state of charge (SOC) is susceptible to sulfating. It takes a lot more time to get a battery from 70% SOC to 100% SOC, than from 40% SOC to 70% SOC. A 30 minute drive once or twice a week is unlikely to prevent sulfation.

http://batteryuniversity.com/learn/article/sulfation_and_how_to_prevent_it

Re: battery sulfation [Re: JHZR2] #3183882
11/10/13 02:04 PM
11/10/13 02:04 PM
Joined: Mar 2004
Posts: 21,112
Upstate NY
Donald Offline OP
Donald  Offline OP
Joined: Mar 2004
Posts: 21,112
Upstate NY
Originally Posted By: JHZR2
The right way to desulfation is higher than normal charge voltages. The battery will gas, and water will need to be replaced (recall the opening vent cap thread).


While that may be one way to do it, the BatteryMinder uses high frequency pulses.


2015 Subaru Forester 2.5 engine/CVT
2015 Ford F250 w/Powerstroke
2016 Subaru Crosstrek CVT (wife's)
Re: battery sulfation [Re: Donald] #3183920
11/10/13 02:38 PM
11/10/13 02:38 PM
Joined: Jun 2003
Posts: 5,951
Illinois
SHOZ Offline
SHOZ  Offline
Joined: Jun 2003
Posts: 5,951
Illinois
Back at the old battery factory where we made AGM industrial batteries we had the ability to run the cells into reverse or negative voltage with a discharge. Then a slow recharge. Brought many back from an initial test discharge failing.


2008 Hyundai Accent 1.6L 5 sp manual hatchback
2010 Hyundai Genesis Coupe Track 2L Turbo 6sp manual
Re: battery sulfation [Re: Donald] #3183935
11/10/13 02:51 PM
11/10/13 02:51 PM
Joined: Jan 2006
Posts: 2,690
Idaho
SubLGT Offline
SubLGT  Offline
Joined: Jan 2006
Posts: 2,690
Idaho
There is a ton of research data available about lead acid battery sulfation prevention, mechanisms, and reversal.

A google search for [sulfation "journal of power sources"] will turn it up.

Re: battery sulfation [Re: JHZR2] #3184032
11/10/13 05:07 PM
11/10/13 05:07 PM
Joined: Oct 2007
Posts: 1,606
Oahu, Hawaii
wirelessF Offline
wirelessF  Offline
Joined: Oct 2007
Posts: 1,606
Oahu, Hawaii
Originally Posted By: JHZR2
The right way to desulfation is higher than normal charge voltages. The battery will gas, and water will need to be replaced (recall the opening vent cap thread).


I've noticed on my Schumancher XCS15 battery charger that it would hit 15.56v at near completing charge. I'm guess the charger is desulfating the battery but I've been wondering why the % hangs at 100% then it enters desulfation mode.

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