Posted by buickanddeere on January 02, 2009 at 07:42:06 from (192.75.48.150):
In Reply to: Re: JUBILEE ISSUES posted by garytomaszewski on January 02, 2009 at 06:56:34:
A 1/2 charged 8V battery doesn't crank as well as a fully charged six volt battery. Batteries fail rapidly when kept in a partially charged state.
The ideal charging voltage for a V battery is 6.9V in warm weather, 7.1V cold weather.
The ideal charging voltage for a 8V battery is 9.2V in warm weather,9.5V cold weather.
The ideal charging voltage for a 12V battery is 13.8V in warm weather, 14.2V cold weather.
Problem is the ignition, lights and electric instruments if so equiped. They will over heat and fail or be inaccurate when subjected to 9.5volts. 7.1V from a 6V charging system into a 8V battery will keep the ignition system going but the battery is going to discharge into the useless range. A primary problem with operators on generator equiped equipment is that they won't rev up the engine. And the voltage regulator was set by looking at the ammeter instead of measuring at the battery with a VOLT meter. A 12V alternator charges at 13.8 to 14.2V by default and suddenly solves low battery problems. If the generator's regulator was dialed up 14.2 most charging problems would go away as well.
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