is the battery necessary for it to work
2047171
You could try Witch Craft or perhaps you would be interested in buying one of my Nuclear Detonation Devices that will power up the mouse. Gezzus. Do you really think electrical power is something that just Happens ?? Some of the questions I read are amazing.
2047172
Not if you're using it for a doorstop. That's what you'll end up using it for because it will crap out within a week.
1870782
no, it worked when I received it but I am sure at some point I will have to replace the battery
908410
No, it requires a special 12 volt battery which costs about $4.00. A battery is included with the unit though
1895574
Yes, it comes with a battery that needs to be charged for 24 hours prior to use. It may be charged to a certain extent but the instructions clearly say charge for 24 hours prior to use.
1332081
Mine had a battery already, I did have a little trouble starting out, but once I went on line and went through the soft ware set up, it all worked fine.
283537
It does not have a battery. I'm not a computer genius, so I can't tell you how it manages to work without a battery, but I know that it does. No need to worry about replacements :)
324705
It will work without battery. Not sure you should remove the battery. But it will work in both scenarios.
1145325
No battery required. It uses power source and you need to have a long power cord of your own.
742056
My unit was shipped without the battery. Did you make sure it has a battery?
418993
Ours came with a battery. If there's no battery, then you might want to send it back.
1051617
Mine did come with a battery. There was a small plastic tab to remove which then allowed the watch to work.
1580233
All you need is an AAA battery, and it will work! (At least that worked for me)
2075766
No it requires 9v battery. You can buy the rechargeable type 9v battery and use it
932190
In my case no, as I bought it "used" w/o batteries. The batteries I had for other tools I owned worked with this item.
464638
Ours had a battery. If the description does not specify "battery not included" you should check with the seller or it could be fraud. They all should have batteries included.
87795
It does not need a battery in addition to the battery you're testing with. It does need a battery for testing.
2123201
It needs it's battery replaced. Make sure you check it to see if it still works after you replace the batteries though; sometimes mine have needed to be reset after.