----- Original Message -----
From: <cardoc@home.com>
To: "Military Vehicles Mailing List" <mil-veh@mil-veh.org>
Sent: Friday, January 19, 2001 3:26 AM
Subject: Re: [MV] 12 volt verse 6 volt
14.3v is old school, new cars regularly charge at 15.3v. Fully
charged (with the charger on)a voltage should be at 16.3v
>
Didn't know you could change the laws of chemistry, a lead-acid cell is the
same regarding voltage be it tiny or submarine size huge, that is, the gas
point per cell is 2.267V and modern car alternator regulators are very
precise in their terminal volts because the now common use of zero
maintenance (gas recombination) lead acid batteries places strict limits on
charge voltage and therefore the rate of gas produced. Indeed all the
vehicular lead-acid batteries I've seen for the last n years have warnings
on them about never to exceed, absolute maximum charge terminal voltage,
usually 14.5V
I can only imagine you are using 7 cell batteries, non lead-acid types, or
your meter is totally out of calibration. I would imagine 16.3V will, if
you're lucky, rapidly pop the integral safety vent valves on a gas
recombination lead-acid battery of the usual 6 cells or if you're unlucky,
explode it.
Richard
Southampton - England
On Thu, 18 Jan 2001 22:52:34 +0100, a.mehlhorn@t-online.de (Andreas
Mehlhorn) wrote:
>No!
>
>Maximum voltage with running engine on a "12 Volt system" is 14.3 volts.
>If there are 15 Volts, the regulator is damaged and will cook the battery.
>
>Best regards
>Andreas
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