Re: 12 Volt DC Battery as Power Source for Camping

On Jul 15, 9:32 pm, ehsjr <eh...@xxxxxxxxxxxxxxxx> wrote:
beth.sto...@xxxxxxxxx wrote:
On Jul 15, 4:51 pm, "Aly" <,khfglshblhb@dfkjhl3k4j:-`#ds\#*.> wrote:

<beth.sto...@xxxxxxxxx> wrote in message

news:1184531523.715331.322590@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
<snip>

There's more than one way to camp, people! This is sort of a special
camping situation.

http://www.burningman.com

Thanks for the helpful replies.

You mean that you and your girlfriend are going to get oiled up and set fire
to each other?

I have the solution to the curling tongs problem. A hat.

No but seriously, have a good time. As has been suggested, a solar panel
would charge that battery. I think one of those gas fuelled Braun tongs
would be more practical really. Or a hat. :-)

Yes, we're going to the Nevada desert to get oiled up and set fires in
the company of 45,000 other people doing similar things....but we need
music to make the experience really meaningful. How can I make my
boombox run for 5 days for 4 hours per day using the battery that I
have? Is this possible?

No. At 2.3 amps, running 20 hours, that's 46 amp hours even
if you modify the boom box to run on 12 volts, and your battery
falls short at 35 amp hours. If we use the numbers you posted
(17 volts, 2.3 amps) it needs 39.1 watts. To provide power
to it through an inverter, figuring inverter efficiency at 85%,
it needs 46 watts, which translates to 3.833+ amps. Running that
for 20 hours requires 76.66+ amp-hours.

That said, it is highly doubtful that the boombox actually
_uses_ the 2.3 amps and 17 volts you mentioned. If it uses
significantly lower current and if you can modify it to run
directly off of 12 volts, then it _may_ be possible.

As others have mentioned, you need to add a charger and a source
of power to run the charger, and you need to lose the curling iron.

Ed- Hide quoted text -

- Show quoted text -

Thank you, Ed, for answering my question. If I promise to lose the
curling iron, will you tell me how to "modify it (the boombox) to run
directly off of 12 volts?"

.

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