Is it battery powered? Nowhere in the description or specifications did I see any mention of batteries or battery life. The only mention of power is: Power Supply: 19V DC, 3.42A, 65W Power AdapterSo I am correct in assuming it must be plugged into AC power at all times? Is it battery powered? Nowhere in the description or specifications did I see any mention of batteries or battery life. The only mention of power is: Power Supply: 19V DC, 3.42A, 65W Power... » Read More Is it battery powered? Nowhere in the description or specifications did I see any mention of batteries or battery life. The only mention of power is: Power Supply: 19V DC, 3.42A, 65W Power AdapterSo I am correct in assuming it must be plugged into AC power at all times? « Show Less
872506
It is not battery powered. It must be plugged into AC at all times.I suppose if you were really motivated, you could make a DC power supply from a car battery or two, and a DC to DC converter, but that's beyond the scope of this reply :-).
872507
Funny how the manual has a safety warning about lithium-ion batteres though. ;)
1645593
It comes with an AC power adapter. You can purchase the battery separately. I would plan for no more than 1 hour on the battery.
1855536
Well maybe the design has changed since I last bought mine. BUT mine has a small hole in the back of the unit (opposite side from electronic panel) that accomodates an AC power adapter. IT DID NOT COME WITH THE ADAPTER BUT HAD THE HOLE. I purchased an adapter in addition to this unit which is why I have not had battery issues- it is plugged in at all times. I have however, had the same portion control issues as others.
1241594
It is battery powered only. It seems to use little battery power, I'm still using the original batteries I installed.
1902868
It is NOT battery operated. I use it with 110 volt here in United States. The plug does have a transformer on it (type 2). The input on transformer says 120 VAC and the output says 12 VAC.
1261161
Its like any other battery power device. It will last as long as the batteries. This one is plugged in (that's how it recharge) but it will last a little while on the battery. Can't tell how long exactly though. Not sure why you need battery only but that's definitely a high-end video monitor, i don't think it will last very long without a power outlet.
777649
This is AC only and there is no battery inside. You could use a small UPS for computers like you can get at an office supply store and likely run it for a few hours. The specs say less than 50W so it is on par with a laptop.
1172412
Sorry, don't understand this question. Extra power supply to what? My review was about the battery charger and it doesn't come with a power supply. You provide the power supply by plugging it in to an electrical outlet.
619926
I don't know about battery life as I've only used it with the AC adaptor. There is a sticker on the back of the unit which says: 12v = 600ma. I assume that must be the voltage and current required to power the unit. That matches the rated output of the adaptor.
206046
could you please check and tell me what's the rating for the external DC supply ? Vdc ? and current rating (mA)?appreciate your help.thx
1258618
Nope. It's battery powered only. You have to modify its scheme if you want to power it up with an ac adapter.
1000133
It runs on batteries. You can plug in a 12V power source of your choosing. I use a universal power adapter that came with several plugs and found one that fits nicely.
304252
Yes, it has to be plugged in. It does not come with a battery adapter. I had an outlet on my porch within reach, but most people probably need to use an extension cord.
395311
Yes it works plugged in. I have never picked it up and found the battery dead. While using, if the battery needs charging, a red light comes on to indicate it needs charging. So when I am done using it, I plug it in. I have not yet had it die while using. Good battery life.
1296884
It is not battery powered. It comes with a plugin transformer. Settings are retained in non-volatile memory, so if there is a power interruption, the settings remain intact.
1855527
Amazon..... your site is very confusing, offering the power adapter when the feeder (5 lb.) has no place to even plug in a power adapter. I ordered the power adapter with the 5 lb. feeder (because reviews talked about using a power adapter) and your site offers it with the feeder, so can you please ensure that your site clarifies that the feeders cannot use a power adapter and are battery operated ONLY?If this is not true, can you please give directions how to adjust a power adapter to work with only a battery operated feeder?
2236990
It's battery operated, however, you can also use an AC adapter, but that's not included.