12v Batteries instead of cable for monitor?

using AA or AAA for powering your 12v monitor would not be so ideal as they have lower amps, thus making then drain fast. What you'd want is use the types for emergency lamps or motorcycles, thats what we use, but still for a 7 inch LCD they'll pump out only about an hours worth.
 
Thanks for the tip! I've been looking at those too, but they are a bit to big and heavy to be portable.

This is actually a Denver DVB portable monitor, probably not the most powerfull and precise monitor, so I hope that it dosent drain the batteries to fast.
 
I actually found small sized 12 v "sealed lead Battery" battery , just a bit bigger than a sony f970 battery. theyre not heavy.
Its labeled Panasonic, but God knows what they really are considering my country's proximity to china. LOL
 
Check with local alarm company suppliers. The backup battery for most alarms is 12V and will work great.
 
Ok so now I have my monitor and a 10 x AA batterypack with 2500 Mah, it's ok and works great.

But now I wonder how to charge this thing the easiest way. It is totaly 12v. I've bought a 12v battery eliminator that is on 500 mah. First question: Does the 500 mah battery eliminator charge the batterypack when connected to it correctly?

I mean, if it is on 500 mah, that means that it would take about 5 hours to charge all the batteries that are 2500 mah, right? (500 mah each hour would give 2500 mah charge power after 5 hours?)

The batterypack has one cable that connects to the monitor, and an other that is a 9v battery connector. So I take the same connector from the 12v charger, and connect it to the 9v connection on the batterypack, am I doing it right or do I risk to set something on fire? On the 12v charger I can also choose what polarity I want the charger to have. I really don't know where it should be, how to I find out what polarity I need to have?
 
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