Rogue MPPT, 490W and charging mysteries
Now that we were finally all in one place - me, Rogue 3048 and my rig - it was time to have some fun. 1)Battery: old starter, tested beyond dead, plates above the water. No wonder, 8 months in Mex...
Forum Discussion
Almot wrote:
I forgot to mention: those a new AGM. Like in "never used". Stored 8 months, yes, but never cycled. So I wanted to try somebody's idea of measuring AGM capacity when new - by stable 8A discharge, and use this as a reference for future. 1 week of light use shouldn't skew these measurements though.
Sulfatation through self-discharge to 75% - can this really happen?
Conditioning of AGM... Lifeline Concorde - and Mex - are the only people talking about it. There are no instructions, guidelines or setpoints in brands other than Lifeline.
You cannot baseline test them until you recharge them.
What are the battery temps? If they are around 40F and you use the Table 5-1. Charging Voltage at Different Temperatures for a 12 Volt Battery
from the lifeline manual, you should Abs them at 14.9V until the rate drops to 0.05% of C20.
I doubt they need conditioning and you won't know until you get them charged. Per Lifeline, conditioning is a recovery procedure AFTER you detect a loss of capacity and AFTER a full charge.
HTH;
John
