[RocketsNW] Batteries for altimeters

[Scott T Bowers]

 Many have pulled apart batteries and the consensus has always been Duracell
9 volt. The internal connections are welded, making them a little more
robust.  

I agree with Carl, why trust many dollars and many hours to a cheap battery?

Scott T. Bowers
www.scottsrockets.com
 

-----Original Message-----
From: rockets-bounces at rocketsnw.com [mailto:rockets-bounces at rocketsnw.com]
On Behalf Of Carl Degner
Sent: Saturday, December 06, 2008 12:41 PM
To: 'lloyd humez'; rockets at rocketsnw.com
Subject: Re: [RocketsNW] Batteries for altimeters

You can stack the batteries as you mentioned.  They even sell Perfect Flight
even sells a battery holder and the kits to do so.  If you are using this
for deployment, you definitely need to test your ematches to make sure they
will fire.

As for trusting a rocket with electronics to cheap batteries, I would not.
Good batteries are too cheap to risk several hundred dollars to.

My $0.02

Carl
NAR 33262
TRA 11344
KE7DRZ
 

> -----Original Message-----
> From: rockets-bounces at rocketsnw.com
> [mailto:rockets-bounces at rocketsnw.com] On Behalf Of lloyd humez
> Sent: Saturday, December 06, 2008 11:45 AM
> To: rockets at rocketsnw.com
> Subject: [RocketsNW] Batteries for altimeters
> 
> I have a two part question about batteries for altimeters 
> (perfectflite MaWD):
> 
> I read some where that you can stack 6 - SR44 silver oxide batteries 
> inside a heat shinkwrap tube to make a lighter weight battery.
>  Is this possible, reasonable, or even recommended???
> 
> Second, would you trust your favorite rocket using a group of 
> "Thunderbolt Magnum" batteries from Harbor Freight??? (They are on 
> sale for 2 x $1 through Sunday).
> 
> Thanks, Lloyd (from Eugene)
> 
> 
>       
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