[aprssig] Shack backup power

[Richard Amirault]

----- Original Message ----- 
From: "Bob Bruninga "
(snip)
> And that is about ONE golf cart battery (though you will need two to get 
> to 12 volts and to keep the depth of discharge to about 50% to prolong the 
> life of the battery).
(snip)

We are talking about emergency, backup power ... not day to day use ... 50% 
would be appropriate for day to day use, but golf cart batteries are "true 
deep cycle" batteries and can be safely discharged down to 20% of full (80% 
discharge) on occasion without serious harm.

Richard Amirault
Boston, MA, USA
http://n1jdu.org
http://bostonfandom.org
http://www.youtube.com/watch?v=J7hf9u2ZdlQ