If your device needs 2pcs AA battery,please choose 3V 2AA,and use 1pc AA dummy battery,if your device needs 3pcs AA battery,please choose 4.5V 3AA,use 2pcs AA dummy battery,and so on,6V=4AA Batteries, and so on.
Power supply from USB charger,power bank,car USB charger and more USB adapter,removable design, can pass through the small hole of the battery cover
Suitable for Beard Trimmer Toothbrush Make-up Mirror Camera,Flashlights,controller,Radio,electric toy,fan, holiday lights,Clocks, Christmas advent calendar display and more AA Battery power supply devices.
Replace 1 to 4pcs 1.5V AA battery power supply cord,This eliminates the need for 1 to 4pcs 1.5V AA batteries,green dummy battery is conductor,without power,AA Fake batteries cannot be used in parallel, only in series.
No Need To Change Battery Frequently: With this AA battery eliminator Power supply,you don't need to buy a lot of replacement batteries when the batteries run out,saving you more time and money.