I'm curious about desulfating my house batteries. I have four 6-volt batteries. To hook up my desulfating charger, should I remove the cables and isolate it from the coach charge system? I was thinking I would hook it up and let it do its thing for a couple of weeks. I think it would be good for them. I am just assuming that my Freedom SW 2000 inverter/charger does not have a desulfating feature. I do know it has the equalizing feature.

As I recollect the equalizing mode is for desulfating. Read the inverter manual for more info.In fact I'm going to be doing that exact same thing in a day or so.

Yes, some inverter/chargers DO have an equalization mode-- it will likely be manually activated.It is for a short time ONLY, as it substantially raises voltage.Absolutely, if you can disconnect house circuits while equalizing, it is best for your 12 VDC PC boards, lights, etc.The best way to determine that you do need to equalize is to check your wet cell batteries with a battery hydrometer. If readings are not very close to the same (cell to cell) it is time to equalize. Equalization is "finished" when all cells read very close to the same. If this is not achieved within a couple of hours, you have a bad call/battery. Amp rate during equalization is quite low-- under 5 amps.So, yes, only start equalization on a fully charged battery bank.

Equalizing raises the voltage, so disconnect the house from the batteries when equalizingThe desulfating mode on some chargers ( black n Decker )Is a pulse cycle at high frequency low amps and normal voltageNo need to disconnect batteries for pulse desufating

I have several desulfators that I bought from wizbangplus.com. I have used them for about the last five years. I keep them on my batteries along with a trickle charger while they sit on my workbench during the winter. Many people would tell you that desulfators are voodoo. I have no definitive proof that they work. But I did just test one of my batteries that is 10 years old and got a full 100 amps from it.

My equalizing charger, goes for 24 hours, and does raise the voltage higher than I would like the electronic circuit boards to be exposed to for any period of time longer than a few seconds. As Brett mentioned, using an hydrometer to check progress is the accepted way to see if the equalization has been completed successfully. Large battery banks that are used for power generally go for 24, to 72 hours. Remember sulfation that forms on the plates tends to flake off and accumulate in the bottom of the cells. Breaking the sulfation down by equalization is a hit and miss progression.

Desulfating | Good Sam Community

MrWizard
Moderator
Dec 16, 2016
Equalizing raises the voltage, so disconnect the house from the batteries when equalizing

The desulfating mode on some chargers ( black n Decker )
Is a pulse cycle at high frequency low amps and normal voltage
No need to disconnect batteries for pulse desufating
wolfe10
Explorer
Dec 16, 2016
Yes, some inverter/chargers DO have an equalization mode-- it will likely be manually activated.

It is for a short time ONLY, as it substantially raises voltage.

Absolutely, if you can disconnect house circuits while equalizing, it is best for your 12 VDC PC boards, lights, etc.

The best way to determine that you do need to equalize is to check your wet cell batteries with a battery hydrometer. If readings are not very close to the same (cell to cell) it is time to equalize. Equalization is "finished" when all cells read very close to the same. If this is not achieved within a couple of hours, you have a bad call/battery. Amp rate during equalization is quite low-- under 5 amps.

So, yes, only start equalization on a fully charged battery bank.
bluwtr49
Explorer II
Dec 16, 2016
As I recollect the equalizing mode is for desulfating. Read the inverter manual for more info.

In fact I'm going to be doing that exact same thing in a day or so.

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