Conclusion
For those of you who have stuck with me this far, I thank you for at least
allowing me to explain my theories, problems with it and why I am writing this
follow up to begin with. I apologize to those of you who got a heaping helping
of my injured pride last night.
I would like to salute a gentlemen named, Yoav Epstein, who instead of
yelling at me, presented the problems as they were and told me the solutions for
them from an electrical engineer at his workplace. For your reference, I'm going
to quote his email below.
| I asked an electrical engineer at work about the amount of time the
battery would last, and he said you had an error in your calculations.
You need to obey the law of power conservation. Power = Voltage *
Current.
The battery has 12V * 25A = 300W for 180 minutes.
The inverter, generating 300W (without any efficiency loss) would only run
for 180 minutes (less if it was not 100% efficient).
However, the PC is not drawing the full 300W when running, maybe it's
using 50W - 80W (without the monitor).
The total time would be 180 minutes * 0.9 (inverter loss) * 300W (output) /
80W (usage) = 750 minutes (12.5 hours). |
Thank you, Yoav.
That's everything I believe....
Until next time, be safe.... and play hard!
