Is it possible for me to use a adapter that changes 12V car battery power to 110V AC and hook it up to a 12V motorcycle battery (not installed in motorcycle) and plug in my single color laser projector into it for an hour outdoor show?
Is it possible for me to use a adapter that changes 12V car battery power to 110V AC and hook it up to a 12V motorcycle battery (not installed in motorcycle) and plug in my single color laser projector into it for an hour outdoor show?
I don't know if you'd get a full hour out of it, but it would work for awhile. You should be able to get an hour, but no guarantees.
Measure how much power your laser draws from the wall outlet and multiply that by, say 1.15 (for losses in the inverter). Then divide the capacity of the battery (in Wh) by that number and you'll get how long it will run for.
One hour is about what I would expect from an MC battery with a capacity of 150 Wh though.
one thing: watch your grounding, summed square wave inverters are NOISY.
I wouldn't really want to plug several thousand dollars worth of laser projector into a $50 block from the local hypermart.
If you can get a UPS/battery backup that will power your laser unplugged, you could just attach larger batteries to that. the highter quality inverter and filtering could be the difference between a successful gig and a toasted dpss or two.
"TO DO IS TO BE" - Nietzsche
"TO BE IS TO DO" - Kant
"DO BE DO BE DO" - Sinatra
A lot of powersupplies in lasers are SMPUS so don't care so much about what comes in...
that can be true, but caps pop for all sorts of funny reasons.
on a side note i remember running a pc in my car, and the voltage difference between chasis grounds was staggering, so if you're running a setup outdoors, you'd need to watch out for that.
"TO DO IS TO BE" - Nietzsche
"TO BE IS TO DO" - Kant
"DO BE DO BE DO" - Sinatra
I've run my RGB rig and laptop off a true sine wave inverter (Go Power and Xantrex make good ones) with a 30 Ah sealed deep cycle battery. It ran for about two hours. There were no problems.
Don't use a motorcycle battery. They're not designed for deep cycle and you will ruin it.
If you cant find a deep cycle, get a marine battery. Usually a little bit more obtainable.
Steve
Qui habet Christos, habet Vitam!
I should have rented the space under my name for advertising.
When I still could have...
Yeah I was going to say, some things don't like being run from a modified sine wave and can cause all sorts of problems. If you are wanting to do this safely your best bet would be a nice large deep cycle battery and a pure sinewave inverter.
Thanks guys. Your insightful comments are very useful and much appreciated.