DLYFULL Battery Tester for AA AAA C D 9V 1.5V/3V Button Cell Batteries

Works great. Now I have thrown out all my iffy batteries. Easy to use. Highly recommended tester. Thank you.

It’s very simple to use and gives accurate feedback on the health of the battery. Comes in different colors.

Works very well , very happy

works fine

I've had multiple battery testers, all which were just "okay" and somewhat disappointing. This one has been a game-changer. I absolutely love it. I no longer resist going to test my batteries; it is SO easy to use as it should be. It's design is so brilliant, and it does coin batteries better than anything I've ever used. It has already saved me from throwing out perfectly good batteries.

Works great. Like the fact that it does most all size batteries

Good value. Easy to use. Love that it can do the coin style batteries as well.

We have a clear tote with a locking lid and a convenient handle to contain all those expensive batteries in one location. We also have another just like it with used batteries so we can recycle them when it gets kinda full. Although they are clearly labeled, my kids must have missed the class when they taught "new" and "used". Oh, its great. Lots of fun. Did I mention batteries are expensive? With this handy little tester I can determine which are which. We found plenty of used batteries in the new box, and enough new ones in the used box to cover the cost of this thing. I want crisp, new batteries in my flashlights but the remote for the TV on the back porch that we rarely use can totally get decent used ones. Now I can tell which is which.

It wirks real great and practical 👍

Tres efficace cela peu voir que les batterie son toujours utilisable

This has the LCD display that goes on when battery is being tested. It does test button battery LR44 which is very small. My favourite is the CR2032 which is the air tags battery. The ones from Costco say they have the bitter taste so kids won’t eat them. I spoke to Apple yesterday and they recommend using rubbing alcohol to remove the bitter coating for proper contact. It has 10 different battery types. AA, AAA, C, D and CR type for airtags etc. This machine has saved me so many batteries.

A huge upgrade from the battery tester I had before! Works great and no second guessing if the battery should be discarded or not. It’s exactly as described and I’m extremely pleased!

Checks all types of batteries, easy to use, and is an excellent product.