Author |
Message |
jocoman Samba Member
Joined: August 11, 2016 Posts: 497 Location: Ottawa, Canada
|
Posted: Mon Nov 30, 2020 7:43 am Post subject: Deep Cycle flooded battery equalization |
|
|
I have a nice 140 AH flooded lead acid aux battery.
From time to time you need to bring the battery up to 16v for about 45 minutes to equalize the cells within the battery. ( couple of times a year)
My battery was losing performance so I brought it back to where I bought it and they did an equalization charge on it. The battery was fully restored to its previous power and the Specific Gravity went back to where it should be on a fully charged battery.
My battery charger does not have an equalization mode, not can I find any run of the mill chargers that do.
What are people doing to accomplish an equalization charge?
thanks _________________ '86 Westfalia 2.0L Zetec
'97 Volvo 850 AWD Turbo
" The fun never stops" |
|
Back to top |
|
 |
Sodo Samba Member

Joined: July 06, 2007 Posts: 10673 Location: Western WA
|
Posted: Tue Dec 01, 2020 12:51 am Post subject: Re: Deep Cycle flooded battery equalization |
|
|
Search "equalization battery charger" on Amazon?
Equalization is done to a fully charged battery, so it doesn't take a big charger.
But if you bought a $20 unit you might want to disconnect the battery completely so any other loads don't suck down your equalization charge. _________________
'90 Westy EJ25, NEW oil rings (!) 2Peloquins, 3knobs, SyncroShop pressure-oiled pinion-bearing & GT mainshaft, filtered, cooled gearbox.
'87 Tintop w 47k 53k, '12 SmallCar EJ25, cooled filtered original gearbox
....KTMs, GasGas, SPOT mtb |
|
Back to top |
|
 |
jocoman Samba Member
Joined: August 11, 2016 Posts: 497 Location: Ottawa, Canada
|
Posted: Tue Dec 01, 2020 6:30 am Post subject: Re: Deep Cycle flooded battery equalization |
|
|
Didn't see anything on Amazon and of course it was the first place I checked.
Yes, equalization is only performed on a fully charged battery which absolutely needs to be out of the circuit. _________________ '86 Westfalia 2.0L Zetec
'97 Volvo 850 AWD Turbo
" The fun never stops" |
|
Back to top |
|
 |
owokie Samba Member

Joined: May 21, 2003 Posts: 570
|
Posted: Tue Dec 01, 2020 2:44 pm Post subject: Re: Deep Cycle flooded battery equalization |
|
|
jocoman wrote: |
Didn't see anything on Amazon and of course it was the first place I checked.
Yes, equalization is only performed on a fully charged battery which absolutely needs to be out of the circuit. |
Nah, it can stay in the circuit just fine. Just keep your loads turned off or at least anything that's very voltage sensitive.
Got solar? Get a decent controller that will equalize for you. Or buy a $40-$50 adjustable power supply and use that. |
|
Back to top |
|
 |
rmcd Samba Member
Joined: October 29, 2010 Posts: 1350 Location: PNW - its a dry rain.
|
Posted: Tue Dec 01, 2020 10:37 pm Post subject: Re: Deep Cycle flooded battery equalization |
|
|
I got a noco genius10 this summer and haven’t had a ton of time to play.
A couple key features. It has a desulfator function and a force mode to hard charge a low volt battery. Plus it supports AGM charge profiles so you don’t damage a deep cycle battery. Among other things.
Kind of inexpensive on Amazon for $80. _________________ VW LT40 build. Like a Vanagon but 30% larger in every direction and 40% slower even in metric.
https://www.thesamba.com/vw/forum/viewtopic.php?t=749359&highlight= |
|
Back to top |
|
 |
DanHoug Samba Member

Joined: December 05, 2016 Posts: 5759 Location: Bemidji, MN
|
Posted: Wed Dec 02, 2020 5:09 am Post subject: Re: Deep Cycle flooded battery equalization |
|
|
rmcd wrote: |
I got a noco genius10 this summer and haven’t had a ton of time to play.
A couple key features. It has a desulfator function and a force mode to hard charge a low volt battery. |
glad some are finally adding that feature. i keep old manual chargers around to bring up completely dead batteries. the new ones won't chooch with just a couple volts left in the batt. _________________ -dan
60% of what you find on the internet is wrong, including this post.
'87 Westy & '89 Westy both 2.1 4spd
Past projects can be found at--
www.thefixitworkshop.com |
|
Back to top |
|
 |
rmcd Samba Member
Joined: October 29, 2010 Posts: 1350 Location: PNW - its a dry rain.
|
Posted: Wed Dec 02, 2020 2:22 pm Post subject: Re: Deep Cycle flooded battery equalization |
|
|
I have battery monitor and will test the peak voltage with force mode and report back. _________________ VW LT40 build. Like a Vanagon but 30% larger in every direction and 40% slower even in metric.
https://www.thesamba.com/vw/forum/viewtopic.php?t=749359&highlight= |
|
Back to top |
|
 |
jocoman Samba Member
Joined: August 11, 2016 Posts: 497 Location: Ottawa, Canada
|
Posted: Thu Dec 03, 2020 11:39 am Post subject: Re: Deep Cycle flooded battery equalization |
|
|
Exactly. I'll be surprised if it gets up to equalization voltages.
Trojan recommends 16.2v for 45 minutes a couple of times a year. depending on
the condition of the battery. If the S.G. is same across cells, you may not need to equalize. _________________ '86 Westfalia 2.0L Zetec
'97 Volvo 850 AWD Turbo
" The fun never stops" |
|
Back to top |
|
 |
ZsZ Samba Member

Joined: December 11, 2010 Posts: 1735 Location: Budapest Hungary, Europe
|
Posted: Sat Dec 05, 2020 4:06 am Post subject: Re: Deep Cycle flooded battery equalization |
|
|
You can do equalization with a cheap dumb charger (just leave on until the voltage reaches 15V) or with a CC/CV power supply.
The power supply method is probably better as you can use low current. _________________ Zoltan
1.9 MTdi 2wd Multivan (ex Caravelle)
Van since 2006, engine since 2008 |
|
Back to top |
|
 |
|