USB Power Converter AA Battery Eliminators Replace 4Pcs 1.5V AA Batteries for Remote Control LED Light Electronic Toy Aa Battery USB

I hate throwing batteries and contributing to trash piles. These work great. The cord is long enough for me to connect it to power source. Bought these for Diwali and Halloween outdoor decorations. I am so happy that I will not be buying too many batteries every year. Saving money and the planet is a big win win

Would have liked a longer cord for my application, but the product works as described and has given no issues.

Works for my application. Will wait how far it can go.

I love this little contraption. I use it with my string lights and attach a timer to it. Saves me on batteries. Will be buying more sizes.

Great product for price USB powered turned a battery pack into power use which saves on cost of the batteries. Well worth the investment, especially for fairy lights.

For the price ($5ish) this is a fantastic deal, but note that it seems to pull 6v@1amp (5v LEDs will be bright but fine) and the USB plug gets quite hot. Forcing it down to 5v (with a block that only outputs 5v) results in a SLIGHT drop in temp. Strong advice to keep the plug well ventilated if you're using it long term, or perhaps use an AC adapter as they tend to not get as hot.

These work with the Wii Fit board, I was desperately trying to find alternative to 4 AA batteries, I saw a lot of products that were only 2 or 3 batteries. The Wii Fit board actually does have a battery pack, but I read that it sucks. I highly recommend THIS product.

I really can’t say I was hoping it would work in my clock which takes one AA battery but this only works if you need four batteries.So four AA batteries only