do you need to insert a double/tripple A battery or does it work without battery's?
942778
It works without batteries. When you pierce the wire insulation, thats hiw it gets it's power. The alligator clamp opens and you place it on metal for ground. That nakes the connection for a circuut wich activates the light.
942779
It runs on the DC power of your vehicle's batteery . No additional battery required.
942780
it does not need batteries the power is supplied by the circuit you are testing.
497727
No, you plug it into a power outlet to get it charged. No batteries needed.
1617283
It should work just with a battery. No programming is necessary. Maybe the circuit board got damaged?
1292371
Can use TRIPLE "AAA" batteries if you buy the battery holder.Dont know about Double "A" size
742541
I havent even known that it requires an extra battery or I can add one.I use it quite a bit and it works fine...It is a very good camera for little movies of simple things like babies or a little recording you need to upload. Its Photos are useless and the videos are not high quality for making into high quality movies. SImple Youtube or Picasa uploads they are great... quick and fun.Hope that helps.
799748
The product I have does not require any batteries, maybe if there is one to purchase with a 'light' added it may need batteries, however the stand alone needs none!
1907952
You will not need a battery anymore. Just hook to your device and plug in. It's not a charger.
769340
I'm not sure about question 1. 2. Only the single pump takes batteries. You must use a plug for the double pump. 3 I have not tried the single. I chose the double because it is time-saving. You can also use it as a single if you choose to. I didn't need the battery option (I think you will be spending a lot on batteries). I do have a converter that allows me to plug into my car's cigarette lighter... That has come in handy for on-the-go.
1001144
No, you plug it in - Regular 110/120V No place for batteries - supposed to draw minimal power (equivalent to 30W light bulb??). Unit works great!
1710988
It works on 120 volt A/C power without a battery. I understand you can add a battery as backup in case of power loss but I have not done so with mine. My unit has been in operation since August '13 without any problems, operating an 11-1/2 foot chain link gate. I love not having to rely on battery power.
326661
No it only works with two AA batteries. Just and FYI, the theere is a switch on this unit that powers it on and off but, if you dont make a mark on the unit it will be very hard to tell if its off and the battery will drain.
1250060
I don't have one, but it would be a good idea since I have multiple batteries.
1673149
It does work without battery, but display is dimmer. unless you use it right under a light
2233172
It needs two D batteries. I have bought two of these things and they both stopped working after a few months.
134892
It does not have a battery, you will need to unplug it before moving it from one location to another.
1883102
No it does not require an extra battery. The meter works off of the battery you are testing.
1212123
It uses 3 double a batteries. However, when we put new batteries in after about 8 weeks it never worked again.