Deep Cycle Battery usage

[cannon253]

Can any one out there tell me where to find a usage chart so I can estimate how long my battery will last?

Thanks

[rainjer]

It would all depend on the battery and what you have hooked up to it...

Jeremy

[notned]

http://www.tnttt.com/viewtopic.php?t=11173

This thread helped me to understand the issues. You asked a difficult question.

[48Rob]

Try this.

Rob

http://www.ccis.com/home/mnemeth/12volt/12volta.htm

[cannon253]

Thanks All but I saw a chart somewhere that showed like lights, radio, computer and what kind of whats they took to run them.
I'm still looking as well.

Jerry

[Shadow Catcher]

I have an Excel spread sheet which came from http://www.campertrailers.org/solar_spreadsheet.htm

[astrotrailer]

Google DOCwattson. It is a DC meter that tracks real time amps, volts and watts.
The best feature is that is accumulates total amp-hours used since last reset. I have
two in my trailer. One tracks the output of my solar panels. The other tracks all my
DC load. It is great to figure out exactly how far I have drawn down my battery after
the sun goes down. I have a 130 amp-hour battery and I never draw it down past 50%,
so my night time power budget is 65 amp-hours. You can see a picture of the meter in
my album.