is this need battery?
1883194
No this does not need a battery. It is plugged into the wall. Also, the only way to turn it off is to unplug it.
2080595
You could use a Lith battery. When you get the unit test it immediately. The unit I received had a defective manual function.
399338
It doesn't need batteries. Mine too inexplicably stopped working after a short while. I had to return it.
134892
It does not have a battery, you will need to unplug it before moving it from one location to another.
850166
YES! It comes with a battery, but it did not last very long, I had to buy a new battery. It was very cheap.
2090153
There is no battery needed. Alternatively, if you wanted to use a battery pack you probably can, but again, not needed. It comes with a Mini USB Male to Common (A-Type) USB Male Cable. Ive powered this from a laptop and had no issues. I also plugged it into an extra USB Adapter from an old phone and worked great.
637423
No, but the item is good enough to let it run on batteries. You can buy rechargeable batteries with a charger, a good idea.
1753409
Yes, it requires batteries, but don't buy this product. I did, but the build quality is horrible. It broke after six months. I saved up some money and brought a Fluke instead, which has been rock solid.
730790
There are no batteries needed. Please note though that you do need to buy an electric cord as long as you think you will need. It doesn't come with any.
1557249
Yes mine does but the batteries last a really long time so you may not need it.
1219746
Im not sure where you saw that it requires a battery. Its just a case. With a magnetic to keep it closed. There's nothing electronic about the case itself.
2212341
I didn't know it did need batteries.I have it on the wall, plugged into the telephone line.It works just fine...no batteries that I know of.As another reviewer said, it is a wall phone. The "od fashioned kind".My grandkids didn't even know what it was, hanging on the wall. :)
1388325
There is a battery housing built into it, so you don't need one. I bought a lawn tractor to use with it.
87795
It does not need a battery in addition to the battery you're testing with. It does need a battery for testing.
559097
Nope. No batteries. This is a purely non-electronic instrument. You blow in it, it makes sound. (Think of a big harmonica with one hole to blow into instead of several.)
1454906
I assume thatis a typo. There is no battery required as this is a passive device. I am using it on 24 volt system.
1607378
I don't think there is any battery in there. You need to connect it to a socket.