I read an automotive column in the Wall Street Journal’s personal section on Thursday written by a supposed expert.
Yikes.
He gave advice on a discharged lead acid battery in a person's car.
He said:
A deep discharge of the battery would ruin the battery.
The car was not able on it’s own to recharge the battery.
That Batteries were not meant to be radically discharged because it would shorten the life of the battery.
We’re talking lead acid here. Car Battery.
He couldn’t be more wrong:
An occasional discharge is GOOD for the battery. It cleanses the lead plates of accumulations of lead oxide deposits as a result of long-term shallow charge usages.
The Car’s electrical system is well able to recharge the battery from near zero. Not every day of course but on an occasional basis no problem. Alternator diode voltage regulators know what to do.
A deep discharge is part of the life cycle of a good battery and will not ruin it.
I blame this on bad science education. Schools.
1 comment:
Yeah. What you said.
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