Almot wrote:
Reading things that one can't digest will be a waste of time and getting their eyes sore :)
Some learning is sure in order. At the very least, print out the voltage chart, put it on the wall and check the voltage first thing in the morning when they are not charging AND all loads are off AND the temperature is close to 77F. This is the only way (other than measuring Specific Gravity with hygrometer) to tell how "full" they are. Voltage should be measured with a reliable meter and not too far from the battery terminals.
Hydrometer, not hygrometer.