Forum Discussion
harold1946
Jul 23, 2015Explorer
EsoxLucius wrote:harold1946 wrote:Then sir you previously ignored what I wrote in the quote of me above. However, you wrote that it is best not to charge any battery at more than 13.8 volts unless de-sulfating or de-stratifying. I pointed out that that statement is false as bulk and absorption charging can occur at 14.2 to 14.8 volts depending on the battery. Thank you for correcting your false generalization with subsequent clarification, or stating the obvious.EsoxLucius wrote:harold1946 wrote:Say what? My batteries accept 14.7 volts for bulk and absorption charging, and 13.7 volts in float. Such generalizations do no one any good.
It is best not to charge any battery at more than 13.8 volts unless de-sulfating or de-stratifying.
I'll try to make it clearer.
Bringing a 12 volt battery to full charge using a voltage over 13.8 will damage the battery. That is why we use a charger that steps down in stages as the battery nears full charge and uses a float rate of 13.8 or less. bringing a battery to full charge is not done at higher rates, (such as 14.7) because it will damage the battery.
A charger that has a maximum output of 13.8 can only charge to that voltage. Once it is reached, charging stops.
No it is not false. I did however unintentionally leave out the word fully.
Typo, nothing more.
Attempting to fully charge a battery at 14.7 volts will damage it. Doing so at 13.8 will not.
I will in the future proofread so there is no misunderstanding.
I did not ignore you statement. I felt there was no need to reply after your derogatory comments, as it would serve no purpose.
About Motorhome Group
38,758 PostsLatest Activity: Nov 03, 2025