does this need batterys
1551652
No, you don't need it. It works with the power suministrated by the usb cable taken from the PC, Laptop, iPad or iPhone.
2021063
No, it requires two AA batteries though I imagine you could use rechargeable batteries . The batteries last a pretty long time though .
1028854
No you don't. I got this item and u don't need batteries at all. It isn't battery operated.
1673303
No. Batteries only. Works very well, but you'll need to use good batteries with this. I used cheap dollar store brand batteries first, and they didn't last very long.
1137066
Does not use batteries, you have to have it plugged into the electric outlet all the time.
658324
No, it does not need batteries. I assume it operates on the current from the batteries being tested. They warm you to not prolong testing of a battery as it can run the battery down. It takes just a split second to get a reading.
775090
No, you do not have to buy batteries. They are all ready to go. There is a little pull tab that like activates them.
1149200
This charges your batteries so yes you need batteries. It is not ment to run all your lights and stuff with out at least one battery.
1972887
Dear Friend,Thanks for your inquiry.This item need 4AA batteries(No Battery Includes) in this product.Thanks a lot.
1473212
no batteries needed, it plugs into the USB port on your computer. You can buy a power supply for use elsewhere.
1564647
I never installed batteries but as I recall it needs them or the AC power to operate.
657941
No it doesn't need batteries.It simply is a fairly large plastic square that has a string for around your neck and is braced by your chest.I found it cumbersome but just my opinion.
1565068
No. It does not require batteries. It uses the 24 volt power from the HVAC unit.
435140
nope, no batteries required. just plug it in and it heats up and is ready to go!
1609088
No batteries. This is not an amplified device so therefore no batteries are used.
192961
No batteries are necessary. Pull the crank away from the body, then crank it up. It runs only on the power generated by the crank. This makes it unusually useful when the power goes out, as it often does where we live.
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.