blowrabbit 0 Posted November 17, 2005 does anyone make a dc battery to use to power up a cam connected to a portable battery powered dvd player [lcd moniter] when you want to rome around inside a site trying out various camera angles in a clients bussiness? basically you could have both the camera and the screen to see the picture from any place you want without haveing to drag a 12v. power line from a block transformer pluged into an outlet. Share this post Link to post Share on other sites
antdickens 0 Posted November 17, 2005 We use a 12v alarm battery. Lasts ages!! You can run a test screen and the camera fine from it Share this post Link to post Share on other sites
baywatch 1 Posted November 17, 2005 We have a spare rechargeable battery that came with our test monitor, we frequently use that to power a camera to show a customer different camera angles etc Share this post Link to post Share on other sites
cctv_down_under 0 Posted November 23, 2005 I used t use my drill battery, means it is always there and usually hanging from my belt, but recently I made a good one with an alarm battery and it stopped my drill going flat Share this post Link to post Share on other sites
Securitymaster 0 Posted November 23, 2005 Hoe many amps would the batery have to be? I don't want to shoot a 12VDC 20A battery into a camera and fry it. Share this post Link to post Share on other sites
VST_Man 1 Posted November 23, 2005 amps on a battery does not mean it will push 20amps into the device/camera and wreck it......the camera "pulls" the amperage needed, the wire diameter allows the proper amperage to travel to the device. amps as identified on a battery can equate to a 2 cups of water, one full and one half full. the full one is 20 amps and the half full is 10 amps. you plug into each with the same "hose" to drain them........one lasts longer than the other due to more water (amps). amps as drained is dependant on the device amperage and the size of the wire.....the wire has to meet the needs of the required amperage. hope that helps...........sorry if it was too "deep" Share this post Link to post Share on other sites
cctv_down_under 0 Posted November 24, 2005 EXCELLENT EXPLANATION NOW I UNDERSTAND IT Share this post Link to post Share on other sites
rory 0 Posted November 24, 2005 yep ..we have used car batteries on home alarm systems .. normally during hurricanes though ... Share this post Link to post Share on other sites
Jasper 0 Posted November 24, 2005 That ought keep the alarm system up an operating for awhile. Share this post Link to post Share on other sites
rory 0 Posted November 24, 2005 yep, normally lasts a couple weeks at least ... depends how many devices and total current draw. Share this post Link to post Share on other sites
jisaac 0 Posted November 24, 2005 We use those radioshack 15 minute rechargable batteries for our test monitors. They are worth there weight in gold. When you batteries run out all you About the only thing at radioshack worth its weight in anything Share this post Link to post Share on other sites
