[Elecraft] Dead Battery

Mon Jul 1 11:25:01 2002

Hi

I think Jeff is referring to the input voltage to the K2 at 14 volts. Thi=
s would put 13.8 volts at the battery because of the .2- .3 volt drop in =
the blocking diode in the K2. So the battery is at the correct float volt=
age. I think he just got a bad battery.

Don Brown
KD5NDB

----- Original Message -----
From: [email protected]
Sent: Monday, July 01, 2002 9:56 AM
To: [email protected]; [email protected]
Subject: Re: [Elecraft] Dead Battery

Jeff, AD9T wrote:

"The battery was purchased from a battery supply house I found on the
Internet, rather than Elecraft. For a charger I use a laptop computer
supply rated 19v and 2.64A (only cost $3). I made a box with a LM350AT
voltage regulator to drop the 19v to 14v. Anything wrong with this
setup?"
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D
A constant 14 volt float charge on a gel-cell or lead-acid battery is too
much and will damage the battery.  The battery evidently went bad due to
overcharging.

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