I drug out one the four Portalac PE12V17 batteries that I have. It is identified as a sealed lead acid battery. The voltage on this one measured 6.8v with no load after sitting idle for about three years.
The battery charger that I have has four settings: 6v, 10a fast charge; 12v, 2a float charge, 12v, 10a fast charge, and 12v, 55a start. When I set it to anything other than 12v, 55a start and try to measure the no load voltage, the output is zero. (I assume that it has a sensor that is shutting it off if there is no load?) On the 12v, 55a start position, it measures about 15.5 v with no load.
So, I set it to 12v, 2a float, connected it to the battery, and then measured the voltage; it was 11.5v. However the ammeter on the charger seemed to be at zero current.
After a couple of hours, the voltage on the battery with the charger connected was up to 12.5v, and the no load battery voltage without the charger connected was a little over 10v.
So, I attached the desulphator, and reattached the battery charger (still on 2a float.) The LED on the desulphator is lit and I can hear the desulphator buzzing.
I'll check the voltage again in the morning.
Here's hoping that the battery is salvageable!
(Of course, I know it will take a while; but I am encouraged by what I have seen so far.)
The battery charger that I have has four settings: 6v, 10a fast charge; 12v, 2a float charge, 12v, 10a fast charge, and 12v, 55a start. When I set it to anything other than 12v, 55a start and try to measure the no load voltage, the output is zero. (I assume that it has a sensor that is shutting it off if there is no load?) On the 12v, 55a start position, it measures about 15.5 v with no load.
So, I set it to 12v, 2a float, connected it to the battery, and then measured the voltage; it was 11.5v. However the ammeter on the charger seemed to be at zero current.
After a couple of hours, the voltage on the battery with the charger connected was up to 12.5v, and the no load battery voltage without the charger connected was a little over 10v.
So, I attached the desulphator, and reattached the battery charger (still on 2a float.) The LED on the desulphator is lit and I can hear the desulphator buzzing.
I'll check the voltage again in the morning.
Here's hoping that the battery is salvageable!
(Of course, I know it will take a while; but I am encouraged by what I have seen so far.)