[Milsurplus] Lead Acid Batteries

[Floyd Petri]

I read this thread with great interest because I have an armored vehicle 
which set up a few months and the batteries died and will not take a charge. 
They were new batteries too. I don't want the batteries to be dead when I go 
to start it. So I am talking about something that I don't know anything 
about. That said, now let me tell you the rumor (I am retired Army) that I 
heard. It was said that the military now has solved the old go get the 
vehicle and it no longer has a dead battery thing. I don't know if this is 
true or not, but supposedly they have or are going to install something 
called a "Solargizer" on all their vehicles. I don't know if this is an old 
rumor or a new one. This Solargizer consist of a small solar panel connected 
to some kind of tiny box that regulates the charge which is connected across 
the 24 volt source. Supposedly it is installed and is left hot all the time 
and therefore your batteries are never dead. I don't know how well the 
system works as I have not heard anything pro or con about it, but I have 
ordered the system for my vehicle. I hope it works at least half as good as 
it is supposed to.

Floyd

----- Original Message ----- 
From: <gl4d21a at juno.com>
To: <milsurplus at mailman.qth.net>
Sent: Monday, February 07, 2005 8:39 AM
Subject: [Milsurplus] Lead Acid Batteries


>
> I was interested to read the comment about keeping lead acid batteries 
> charged.  I was recently in communication with a manufacturer of 
> commercial equipment about the treatment of the gelled electrolyte 
> batteries in his equipment, and he recommended leaving them on charge no 
> longer than a couple of days at a time.  So, a blanket statement about 
> keeping them charged needs a lot of modifiers, and humming and hawing.
>
> A number of years back I designed some equipment for a customer which used 
> gelled electrolyte batteries, and I found a charger manufacturer who could 
> supply a dual rate charger which initially charged at 14.something volts 
> until the current dropped to a preset value, then dropped to a maintenance 
> charge of 13.something volts.  Both voltages need to be temperature 
> compensated, and set to the particular electrolyte chemistry.  So, the 
> comment about a bad idea which went downhill from there about lead acid 
> batteries in electronic equipment is well justified.  Way too many 
> variables to be practical.
>
> 73,
> George
> W5VPQ
>
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