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Re: [TenTec] boost mobile voltage?

To: Bob Stephens <bstephens1@mindspring.com>, <tentec@contesting.com>
Subject: Re: [TenTec] boost mobile voltage?
From: "WA3FIY" <wa3fiy@radioadv.com>
Reply-to: wa3fiy@radioadv.com,Discussion of Ten-Tec Equipment <tentec@contesting.com>
Date: Wed, 27 Apr 2005 10:13:26 -0400
List-post: <mailto:tentec@contesting.com>
Bob,

I settled on the AGM for various reasons.   It's been a while so I don't 
remember all but basically it seems to have the best features of the other 
technologies with few disadvantages.   I have two AGM batteries, a 25 AH 
and a 75AH and both hold up very well.

PLEASE, put a fuse right at a battery post for your protection.   Remember 
that a battery can deliver HUGE amounts of current if short circuited.   
Enough to do some serious damage or cause a fire.   I usa a stud mounted 50 
amp fuse I buy at the local auto parts store.    It is cheap but good 
protection 
against a catastrophe, and it is very easy to install.

73,

-Lee-
WA3FIY


On 26 Apr 2005 at 23:00, Bob Stephens wrote:

> Thanks everyone. I think this thread is close to being finished.
> 
> Given my tendency to be absent minded and not very careful around things 
> that I should be careful around, I have decided to go with a gel cell type 
> for safety reasons. However, there are different types of gel cells. Which 
> is best?
> 
> Review.
> 
> 1. Ten Tecs are known for operating best at  13+ volts, however, the 
> previous owner of my Corsair, Clark WA3JPG, has stated that he ran the rig 
> on deep cycle marine batteries successfully. My *guess* is that the Corsair 
> may work ok down to 11.5 amps but not any lower, so the practical effect is 
> that the rig probably won't operate as long on a given battery as a more 
> flexible rig might. I would de-rate the the amp hours by 50%. I'll guess 
> that a 65 amp hour battery will power a Corsair for no more than 7 or maybe 
> 8 hours. (given the voltage needs of the rig)
> 
> I hope to operate the New England QSO party about 4 to maybe 5 hours the 
> first day, then trickle charge the battery overnight and operate at least 4 
> to 7hours on Sunday. I want to be able to count on at least 8 total hours 
> from the battery.
> 
> Here are 3 possible batteries. Could the battery experts recommend one for 
> this particular application?
> 
> a.Optima deep cycle yellow top battery (from Sears) (car type gel cel)
> 
> b. AGM 79 amp hour glass mat battery from West Mountain Radio - (3000 10% 
> discharges or 200 full discharges)
> 
> c.73.6 amp hour gelled battery from West mtn Radio - (5000 10% discharges - 
> or 500 full discharges.)
> 
> Are there any significant differences between these batteries? Keeping in 
> mind the Corsair's (possible) finicky voltage need, and the possibility 
> that I'll end up getting the 13.8 voltage booster, which battery is likely 
> to work best, and be most worry free?
> 
> tnx -Bob KB1CIW
> 
> 
> 
> 
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