REFLECTOR:Battery
KeithHallsten
reflector@tvbf.org
Mon, 1 Dec 2003 20:55:42 -0800
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Re: REFLECTOR:BatteryThe Optima isn't a gel cell, it's a sealed =
lead-acid (SLA) battery. Which is a good thing - you wouldn't really =
want to use a gel cell. Yes, the SLA batteries are absolutely =
spill-proof, even if you drill the case full of holes!! {which would, =
of course, let the electrolyte evaporate and ruin the battery} That's =
the reason that SLA batteries can be shipped without a "hazardous =
material" charge.
There are now many manufacturers of SLA batteries, and any of them is a =
big improvement over the old "wet" cells.
----- Original Message -----=20
From: Jack Sheehan=20
To: reflector@tvbf.org=20
Sent: Monday, December 01, 2003 8:16 AM
Subject: Re: REFLECTOR:Battery
Dave,
I just replaced my AC delco battery that was about three years old. It =
was used for much of the testing of gear during the building process and =
consequently sat idle a good deal of the time. I wanted as much battery =
as I could find so ended up with a Sears "Optimum' gell cell battery. a =
little pricey about $110.
the interesting result is that My VM 1000 which does a good job of =
monitoring the voltage and whose threshold would cause a low volts alarm =
at the wrong time has been quieted by having a battery that does not =
permit the voltage to drop. With the new battery I have to have a lot of =
equipment turned on and then if the gear motor is energized I can =
sometimes get a low volts warning. The solution seems to be keep the =
volts up and don't complain if the VM 1000 is just telling you what you =
don't want to know.
Long story, but the battery seems a good choice. it was a little bit =
longer (1") but about the same weight and the idea of gell cells ( no =
spill) is a plus.
Jack
XL-RG
N55XL
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<DIV><FONT face=3DArial size=3D2>The Optima isn't a gel cell, it's a =
sealed=20
lead-acid (SLA) battery. Which is a good thing - you wouldn't =
really want=20
to use a gel cell. Yes, the SLA batteries are absolutely =
spill-proof, even=20
if you drill the case full of holes!! {which would, of course, let =
the=20
electrolyte evaporate and ruin the battery} That's the reason =
that=20
SLA batteries can be shipped without a "hazardous material" =
charge.</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT> </DIV>
<DIV><FONT face=3DArial size=3D2>There are now many manufacturers of SLA =
batteries,=20
and any of them is a big improvement over the old "wet" =
cells.</FONT></DIV>
<DIV><FONT face=3DArial size=3D2></FONT> </DIV>
<DIV><FONT face=3DArial size=3D2></FONT> </DIV>
<BLOCKQUOTE dir=3Dltr=20
style=3D"PADDING-RIGHT: 0px; PADDING-LEFT: 5px; MARGIN-LEFT: 5px; =
BORDER-LEFT: #000000 2px solid; MARGIN-RIGHT: 0px">
<DIV style=3D"FONT: 10pt arial">----- Original Message ----- </DIV>
<DIV=20
style=3D"BACKGROUND: #e4e4e4; FONT: 10pt arial; font-color: =
black"><B>From:</B>=20
<A title=3Dj.f.sheehan@issmail.larc.nasa.gov=20
href=3D"mailto:j.f.sheehan@issmail.larc.nasa.gov">Jack Sheehan</A> =
</DIV>
<DIV style=3D"FONT: 10pt arial"><B>To:</B> <A =
title=3Dreflector@tvbf.org=20
href=3D"mailto:reflector@tvbf.org">reflector@tvbf.org</A> </DIV>
<DIV style=3D"FONT: 10pt arial"><B>Sent:</B> Monday, December 01, 2003 =
8:16=20
AM</DIV>
<DIV style=3D"FONT: 10pt arial"><B>Subject:</B> Re: =
REFLECTOR:Battery</DIV>
<DIV><BR></DIV>
<DIV><FONT face=3DArial size=3D-1>Dave,</FONT></DIV>
<DIV><FONT face=3DArial size=3D-1>I just replaced my AC delco battery =
that was=20
about three years old. It was used for much of the testing of gear =
during the=20
building process and consequently sat idle a good deal of the time. I =
wanted=20
as much battery as I could find so ended up with a Sears "Optimum' =
gell cell=20
battery. a little pricey about $110.</FONT></DIV>
<DIV><FONT face=3DArial size=3D-1>the interesting result is that My VM =
1000 which=20
does a good job of monitoring the voltage and whose threshold would =
cause a=20
low volts alarm at the wrong time has been quieted by having a battery =
that=20
does not permit the voltage to drop. With the new battery I have to =
have a lot=20
of equipment turned on and then if the gear motor is energized I can =
sometimes=20
get a low volts warning. The solution seems to be keep the volts up =
and don't=20
complain if the VM 1000 is just telling you what you don't want to=20
know.</FONT></DIV>
<DIV><FONT face=3DArial size=3D-1>Long story, but the battery seems a =
good choice.=20
it was a little bit longer (1") but about the same weight and the idea =
of gell=20
cells ( no spill) is a plus.</FONT></DIV>
<DIV><FONT face=3DArial size=3D-1>Jack</FONT></DIV>
<DIV><FONT face=3DArial size=3D-1>XL-RG</FONT></DIV>
<DIV><FONT face=3DArial =
size=3D-1>N55XL</FONT></DIV></BLOCKQUOTE></BODY></HTML>
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