Determining AH rating of aging batteries
My Trojan 125's are almost 5 years old now, when they were new they were rated at 240 Ah. Now my trimetric is showing 70% at 12.1 volts which I know is wrong. So how can I determine the true Ah rati...
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connect the manual charger. Set to 12volts "Hi" disconnect ground cable so you don;t bake your rig's electrical. Let charge until all the cells are bubbling very vigorously. Sometimes this takes 15 hours or even longer. Stop the charge at 16.0 volts.
Honorable battery is like honorable chain. not good when towing car, weak link breaks and angry chain comes through back window.
What's the deal with "Don't wanna equalize manually?"
Timer modules have a purpose in life. Set timer for four hours, come back and check with a volt meter and a dip of the weak-sister cell. Been doing it that way for more than 50 years. I refuse to sit in a heated, vibrator LaZboy and do it click-click-click with a remote.
The lowest cell -must- rise. If it doesn't rise turn out the lights the party's over. Sometimes with true deep cycle batteries you have to threshold "boil the electrolyte" to slap the drone cell awake.
RV'ers spend thousands of dollars on meters and gauges that likely have appalling accuracy. I won't get into the subject of 55 minute or hour and 7 minute storage "monitors". But some balk at the idea of actually "purchasing" a hydrometer that is MUCH EASIER TO READ than a dime store toy.
Saying in the commercial fishing industry "It works right, or it's 'over the side'"
Honorable battery is like honorable chain. not good when towing car, weak link breaks and angry chain comes through back window.
What's the deal with "Don't wanna equalize manually?"
Timer modules have a purpose in life. Set timer for four hours, come back and check with a volt meter and a dip of the weak-sister cell. Been doing it that way for more than 50 years. I refuse to sit in a heated, vibrator LaZboy and do it click-click-click with a remote.
The lowest cell -must- rise. If it doesn't rise turn out the lights the party's over. Sometimes with true deep cycle batteries you have to threshold "boil the electrolyte" to slap the drone cell awake.
RV'ers spend thousands of dollars on meters and gauges that likely have appalling accuracy. I won't get into the subject of 55 minute or hour and 7 minute storage "monitors". But some balk at the idea of actually "purchasing" a hydrometer that is MUCH EASIER TO READ than a dime store toy.
Saying in the commercial fishing industry "It works right, or it's 'over the side'"
