battery choice
Hi, I am in analysis paralysis. I will be purchasing AGM jars. Here are my two choices: AGM L-16 Surrette 400 amp-hour six volt with 0.145 plates cost $520 plus tax and shipping Four are n...
Forum Discussion
MEXICOWANDERER wrote:
Concorde revealed that a 13.4 volt float (25C) is perfectly acceptable for their batteries. There is no magic tutti-frutti recipe for their batteries. They are not going to overcharge while other brands thrive.
Concorde POSITIVELY MUST be cognizant of maintenance voltage value conflict between Mil-Spec recommendations and consumer user manual recommendations. A sharp eyed GAO analyst would spot it in a minute and call Concorde on the carpet.
It took me awhile to figure this out.
When I built a Velcro retrofit simultaneous 24/12 volt 100-amp alternator for Edwards AFB, I was faced with over a hundred pages of documentation and specification corroboration (When was the last date your alternator test bench ammeter was factory calibrated?).
No engineer in their right mind is going to challenge my statement that electrical charging and maintenance values cannot possibly differ by any significant value between AGM battery brands. Yes, impedance may differ, but that is a charge acceptance value. But NOT bulk charge maximum or float voltage values. I will draw blood from any engineer's gluteus maximus who dares argue this statement.
THOUSANDS OF MOTOR VEHICLES ARE RUNNING AROUND WITH HUNDRED SIXTY DEGREE F AGM BATTERIES OPERATING AT 14.0 VOLTS AND THE AGM BATTERIES ARE LASTING FOR MANY YEARS. This reality check should make an impression on gullible consumers who swallow face saving "Not Me Too" Engineer (salesmen) individualist's personal-touch pronouncements for AGM battery floating guidelines. This relies on good old-fashioned common sense.
The AGM battery in the Touareg TDI sits underneath the drivers seat, away from blasting DPF regeneration temperatures which are like igniting charcoal briqquets that are glowing orange by fanning them like a mad man with excessive turbo boost to get plenty of oxygen to get the black carbon particles to flame and burn off.
My scan gauge 2 says they charge at 14.0 to 13.8V all day long.
The Germans try to keep it behind the firewall, not in front of it, in their nicer car designs.
