Power Consumtion of projectors

[madgadget]

They used to be, but since UPSes went mainstream (where outgassing is a problem) and motorcycles switched to gel batteries, they're not that bad. You can get a 4 Ah 12v SLA for under $10 if you are buying in quantity.

Actually this is a very good point, if you don't mind the hassle of connecting a bunch of small SLA batteries in parallel then that's not a bad option, larger ones however still are pricy.

you guys rock! i have a optima battery that is brand new and i have no use for since its to big for my car. and i play on using that, and you have to trickle charge that (thats why i said that lol)

but i will be looking for a leisure battery for later on.

all i need is a couple hours of use so i will try it out later tonight and see how it works.

thanks again for all the help and gaget that was to much good info would you like a cookie?

lol

BTW I found this about the Optmia batteries I am assuming you have the Yellow top as they are the most common...

Alternator:

• 13.65 to 15.0 volts, no amperage limit. (I.e. unlimited charge current - see more below)

Battery Charger:

• 13.8 to 15.0 volts, 10 amps maximum, 6-12 hours approximate.

Cyclic Applications:

• 14.7 volts, no current limit as long as battery temperature remains below 125°F (51.7°C). When current falls below 1 amp, finish with 2 amp constant current for 1 hour.

Rapid Recharge:

• Maximum voltage 15.6 volts (regulated), no current limit as long as battery temperature remains below 125°F (51.7°C). Charge until current drops below 1 amp.

Float Charge:

• 13.2 to 13.8 volts, 1 amp maximum current, time indefinite (at lower voltage).

Those are HARDCORE charging specifications, and not one I would subject a normal battery too... But you don't need to be gentle when charging the Yellow top batteries

It doesn't matter since your not using a fogger, but the moment you do get a genny. Its really not a good idea to fun from DC power.

[thesk8nmidget]

i actually have a Optima Red Top 34/78

here are the specs.
980 Cranking Amps
800 Cold Cranking Amps
110 Minute Reserve
55 AH
10" Length x 6.8" Width x 7.8" Heigth
Approx. 39 lbs.

luckily i will have a geni for the time i was talking about but i will probably still use the battery idea another time when im off on my own lol

[madgadget]

Red top charging specs

Alternator:

• 13.3 to 15.0 volts, no amperage limit.

Battery Charger:

• 13.8 to 15.0 volts, 10 amps maximum, 6-12 hours approximate.

Rapid Recharge:

• Maximum voltage 15.6 volts (regulated), no current limit as long as battery temperature remains below 125°F (51.7°C). Charge until current drops below 1 amp.

Float Charge:

• 13.2 to 13.8 volts, 1 amp maximum current, time indefinite (at lower voltage).

[VJ AIWAZ]

you can get one of these kill a watt meter for cheap these days


http://www.killawattplus.com/?gclid=...FQxM5QodciDzqQ

[heroic]

Note that if you slowly discharge a battery to 10.5 volts, you will damage it, whereas if you do it quickly you're much less likely to.

I've run a fogger off my system a couple of times, but then I have 420 Ah at 12v running a Xantrex ProSine 3.0. Gives me the ability to be easy about watching the generator- I can stop it to refuel during the show, and if a dust storm rolls in we don't lose the lights... also, by running the generator for short periods at high power rather than continuously at intermediate power, I save substantial amounts of fuel. I also have 360 watts of solar panels hooked up to it, to give things a bit of a shove as it were. At the end of last year's Burning Man we had so much fuel left over that we did Gas 4 Trash: take some trash home, and get free gas!

[2nd17th]

my 1.5W RGB is rated at 200W and the 500mW RGB is rated at 120W

[White-Light]

and how abouts would i measure this myself? im not the smartest when it comes to using my meter lol

Just buy one of these, much easier:



http://www.maplin.co.uk/Module.aspx?...C=SO&U=strat15

Plug your extension into it, then everything into the extension (not as in the picture where its measuring 1 appliance only) and you'll have your answer (be careful not to overload the extension though).