I was referring to a diode to prevent the univolt from charging the battery.
----- Original Message -----
From: Dr. Gerald N. Johnson <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Wednesday, June 14, 2000 7:27 PM
Subject: Re: [VAC] Battery Overcharging
> A diode does act like a one way valve, but with some voltage drop.
> Enough voltage drop to keep a properly regulated small charger from
> getting the battery to full charge. Many small chargers are not
> adequately regulated and don't properly protect the battery. There are a
> few that are designed to stay connected to the battery, those have the
> diode built in but control the voltage accounting for the forward drop
> of the diode.
>
> I have a small 3 amp charger (had it for 25 or more years) that is
> guaranteed to overcharge a battery given a long enough time. Its not
> voltage regulated.
>
> Take a look at the information about battery charging on
> www.statpower.com to learn more about quality battery charging.
>
> In my experience, precision in controlling battery charging voltage can
> lead to drastically extended battery life. Lack of precision can lead to
> very early battery failure.
>
> Gerald J.
>
