Can this unit be powered with an external power source (hardwire to the car battery; a biger battery with same voltaje; other power source)?
892424
Not without "Jerry Rigging" it (something I have done with toys). I have been using this unit for four months now and it is starting to come apart. The magnet cover for the batteries, the screw holders are coming out. I would suggest getting really long lasting batteries instead of the run-of-the-mill type.
186323
Almost anything can be wired into a car. This is a home unit design. the power source is 110Volt standard to 9volt 750ma output.I'd look for a car 12volt unit designed for a car
283555
Mine didn't come with any adapters for external power sources but it has a standard jack type so I was easily able to get an adapter at Radio Shack. The adapter I got wasn't the type for a car but those are easily available for that jack type too as far as I know.
571099
yes you can comes with a on and off switch so it can be hard wired directly to the battery or any other power source justl to be on the safe side add a 3 amp fuse just for protection
1865519
Yes you can . I use it with a generator to keep the agm battery charged in my race car. Thank you
645726
No, it is wired in directly, so a source of power must be present but a cord with plug could be added.
505197
yes it can be hardwired. I had my dealer install it on my dash for easy reach.
1082924
Short answer is "no". There are two wires coming out of the unit that you can basically connect to the terminals of a 12V battery (I used a car battery). You'd need to get a 12V power supply that plugs into the wall and hook it up to that if you wanted non-battery power.
1463839
I'm not sure what you're asking. If you mean "can this be powered from the 12 volt power supplied by an automobile battery?" ... my answer is "maybe." I run mine with the power transformer used for 12 volt landscape lighting ("Malibu Lights"). I BELIEVE that these lights are originally meant to be used on campers and motor-homes, for exterior lighting when parked. That would mean being powered by the vehicle battery.
662921
Yes, you can use it, but regarge it before taking to outside. Unfortunately, it does not keep long power supply as characterized by producent.
1072085
I would say it can be done. Having done a lot of electronics in my day it seems like a no brainier. The battery in the unit is a Lead Acid type so the charge circuit should work fine. You should consider a sealed Lead acid Battery rather than a standard Car battery or consider wiring several in parallel. The sealed battery will be much safer to store in general. If you use a standard Car battery, you could find your self boiling it or deep discharging it. In either event that would not go well if you stored in someplace that is not acid safe. You can get a pair of 9AH sealed batteries for $20 and almost quadruply this units capacity. The one in this unit is only 5AH. Just wire them parallel and you should be fine. Honestly, I would not use a standard car battery unless I stored it in my garage or at least out side my living space. One last thing to consider is that by adding a bigger battery, you are only increasing the length of time you can support the load without the Grid. You can not put a heavier load on the unit. The inverter will only safely put out the rated power no mater how big the battery is.
230099
Nope. Not made for that. Needs an AC wall plug. There ARE chargers that run off car lighter output, but not for this battery. As the other guy said, you need a converter....
225365
can this be powered by a car battery? YES (car battery 12V VDC) Supply Voltage 12~240VDC or 24~240VACWhat I need is a loud horn or siren to go off if someone comes through a door Switching Capacity 250VAC/1A, 30VDC/2A Relay Output with 12 V max 2A = 24 Watts
2067995
If your using one 12 volt car battery out of the car it won't supply that current for any useable amont of time even if the converter was capableof doing that, which it is not. It could maintain 800 watts continuous if the battery was in the car with the car running maybe even 900 watts,but that's it. As far as the connection to the battery I'll reserve the "duh" and say: positive to post marked +, negative to post marked -.
1725802
It Pulls power from the AC unit, batteries are primarily for backup. Otherwise, no it can not be powered with a power supply.
1683537
The battery provides backup power, but my guess is the loud sound cannot be driven for a long time by a simple battery and thus requires external power.
8389
Mine did not. A 12v power end available at a parts store could be wired to the output side to accomplishcharging the car battery. Make sure you have the polarity correct.