โMay-08-2013 02:51 PM
โMay-27-2013 04:18 PM
โMay-27-2013 04:16 PM
HiTech wrote:I haven't seen a difference on mine. Or would that difference be pretty small?
I actually hit this paper researching to find out the effect of Temperature on a battery's open circuit voltage.
โMay-27-2013 01:12 PM
โMay-10-2013 05:20 PM
โMay-10-2013 03:42 PM
full_mosey wrote:HiTech wrote:Clattertruck wrote:
As a practical matter, my Deka AGM batteries are 5 years old, and they have been on charge 24/7 when we are not on the road. My converter is a Xantrex that puts out a float of 13.6 volts. The batteries seem to be performing fine.
So far so good. 13.6 is barely over the specific float voltage spec I got from Deka, and within the float range they allow, I think.
I need to calibrate my volt meters. They agree with each other to within a few hundredths, but the volt meter in my charger is sometimes many tenths off one way or the other, and not by a constant amount.
Jim
Jim;
There you go Obssessive-Compulsive-Disorder(OCD) on Volts again! ๐
Set your chargers for 14.4V temp comp and calibrate your Amp meters!
Take a deep breath, let it out slowly while saying Amps, Amps....
How many AGM owners with 5-10yr old batteries it going to take?
MY solar two stage MS SS-10PWM doesn't even have a float stage! It simply holds 14.4V temp comp and tapers Amps so low that the battery reaches stasis. Rinse and repeat every day. This is the system that runs my 12V fridge and freezer. We're talking about my beer and ice cream, man!
Think Amps! ๐
HTH;
John
โMay-10-2013 03:39 PM
full_mosey wrote:HiTech wrote:
You never want to either. It is an extreme recovery procedure for an otherwise dead battery. Lifeline has one for batteries that have run dead and some other recovery procedure too. I used only as a last resort and it did work, but guaranteed the battery was stressed. It was not valve noise, it was a bubbling/crackling sound inside the battery.
Jim
Ah! That clears things up considerably. Your AGMs were already ruined. I had a grp31 trolling FLA that I ruined and it sizzled and crackled when I tried to recover it with a VEC1093.
It had run dry over Winter because I brought it inside and used it with an APC 1250 UPS without checking or adding water.
HTH;
John
โMay-10-2013 03:38 PM
HiTech wrote:Clattertruck wrote:
As a practical matter, my Deka AGM batteries are 5 years old, and they have been on charge 24/7 when we are not on the road. My converter is a Xantrex that puts out a float of 13.6 volts. The batteries seem to be performing fine.
So far so good. 13.6 is barely over the specific float voltage spec I got from Deka, and within the float range they allow, I think.
I need to calibrate my volt meters. They agree with each other to within a few hundredths, but the volt meter in my charger is sometimes many tenths off one way or the other, and not by a constant amount.
Jim
โMay-10-2013 03:29 PM
โMay-10-2013 03:15 PM
HiTech wrote:
You never want to either. It is an extreme recovery procedure for an otherwise dead battery. Lifeline has one for batteries that have run dead and some other recovery procedure too. I used only as a last resort and it did work, but guaranteed the battery was stressed. It was not valve noise, it was a bubbling/crackling sound inside the battery.
Jim
โMay-10-2013 02:48 PM
Clattertruck wrote:
As a practical matter, my Deka AGM batteries are 5 years old, and they have been on charge 24/7 when we are not on the road. My converter is a Xantrex that puts out a float of 13.6 volts. The batteries seem to be performing fine.
โMay-10-2013 02:45 PM
โMay-10-2013 02:43 PM
โMay-10-2013 02:31 PM
โMay-10-2013 01:24 PM