BFL13 wrote:
pianotuna wrote:
Hi BFL13,
It is entirely possible to get to 100% state of charge at 14.4 volts. It just takes longer.
These guys like 15.3v finish stage for a couple hours (not an equalization, but more like the second part of the absorption stage)
http://www.wholesalesolar.com/pdf.folder/battery-folder/charging_instruction_2011_2.pdf
That's what I do. Except on solar, my highest is 14.6v, gets pretty close to full by SG but not quite, and uses water--monthly top up.
BFL13;
In the link, there is no mention of temp compensation. That is a glaring omission.
What is the temp of your batteries?
I just measured mine(AGMs in the van) with an IR gun at 106.5F. The MS SS-10 solar controller jumper is set to 14.4V and is regulating at 13.80V per the Turnigy. I trust my solar controllers to maintain the AGMs unattended. I have no fear of sulfation.
If I had FLAs, would they be bubbling? If so, how long could I leave them unattended without checking water levels?
When FLAs are bubbling, does the entire plate get charged?
IMHO, high Volts are for stirring FLAs; there is no reason to use high level electrolysis inducing Volts to remove sulfation.
HTH;
John
