I have an off grid solar system, with an 240AH 24v deep cycle battery, and the system (and all of the components in it) is a year and a half old.
i have several questions and i hope that some one could answer, at least some of it:
I had trouble to measure the charge with the hydrometer. is it o.k. to use this table as a reference for any 24v deep cycle battery, or do i have to find my one manufacturer table? is it o.k. to use only the voltage indicator?
In the same article the author is proposing 3 methods for measuring the battery charge: voltage, specific gravity and amp-hour metering. He also says that the amp-hour metering is the best method. is that true? why a Watt-meter isn't just the same? does the amp-hour meter knows when the battery is degrading and therefore has lost amp-hours?
The measurement with the hydrometer is not quite accurate. is there i way of measuring the specific gravity with an electronic hydrometer? if there is, where can i get one of those?
I'm starting to notice that the battery is reaching the 70% red line (Arbitrary limit that i chose to set) far too often. How can i tell what is the condition of the battery?
How can i tell if i new but untested battery is defected?
my solar system produce maximum current of 10 AMPS. someone once told me that a 10 AMPS equalization charge is not enough, and it should be higher for an effective charge. is that true?
an 240AH at 24V have a capacity of 5760 Watt/Hour. is that calculation is right?