Re: 6vs 8v batt

Posted by Owen Aaland on July 07, 2007 at 19:02:37 from (65.165.246.40):

In Reply to: Re: 6vs 8v batt posted by HENRY E NC on July 06, 2007 at 20:57:33:

Unless you are dealing with a more exotic battery type, standard lead/acid batteries have a fully charged voltage of 2.1 volts per cell. That translates to 6.3 volts on a six volt battery and 12.6 volts on a 12 volt battery. This is the voltage you should see after the surface charge has dissipated. The voltage to charge the battery needs to be one to two volts above this voltage.

When Gates first came out with their Optima series batteries they were 2.2 volts per cell. This did cause some problems where the battery would not recharge fast enough. I had problems with some delivery trucks that would last about a week and then the battery would be too discharged to start the engine. Recharge the battery and everything checked out fine but it would be repeated every week until Gates changed their battery specs.

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