Dlyfull Battery Tester, LCD Display Universal Battery Checker for AA AAA C D 9V CR2032 CR123A CR2 CRV3 2CR5 CRP2 1.5V/3V Button Cell Batteries, 1x AAA Batteries Included

This tester works great. I bought it to replace a different tester that I was using. This tester is so easy to use. And I like how it can test so many different size batteries.

This Battery Tester is a must-have for quickly checking the charge on a wide range of batteries. The LCD display makes it easy to read, and it works with AA, AAA, 9V, button cells, and more. I love that it’s universal, so I can test multiple battery types around the house. It’s small, lightweight, and easy to use. The included AAA battery is a nice bonus. Overall, it’s a great tool to help prevent wasting batteries and ensures I’m only using fully charged ones.

Pretty cool! Especially at this low price. I had a bunch of AAA batteries, some dead, some not, that motivated my purchase. It made them easy to sort into Keep/Discard. Same for some AA. Haven't tested all other sizes yet, but based on AAA and AA I can say that the device's "fit" to the battery is not "perfectly snug", may require a little jiggling to be sure if one is dead, but it does work.

First, the unit works great as a volt meter with a qualitative display for "goodness". But I am not sure I would consider it a "battery tester". To properly test a battery the battery should be placed under some sort of load for some period of time to verify internal resistance is not too high. To verify this I placed a current meter in series with a good (new) AA battery. The tester showed the battery as good but current load was only 20 micro-amps. This is consistent with it just being a volt meter. I would like to have seen a current load somewhere between 20 and 100 milli-amps for 5 to 15 seconds before a "good - no good" determination was made. However, for the price it does a good job of providing useful if not complete information of battery health. The unit makes it a lot easier to measure battery voltage than trying to use a standard volt meter with standard probes. Having a display that also provided the actual measured voltage as well as the bar graph would have been nice as well. 4 stars simply because a load test is not implemented. Otherwise a good unit at a good price.

Nice little battery tester. Was able to check out all my partially used batteries and get rid of the bad ones and keep the good. Should save me some money by keeping good batteries in service.

I love this battery tester. It is the perfect size and of great accuracy. I purchased in the past different tester from Walmart and HomeGoods, but this one has fair better superiority. It is very easy to use and test

This battery tester works well and is easy to use.

I have had a very simple tester for about 30 years, and it didn't seem to be very accurate. We have been building up our stock of AA and AAA batteries, so I wanted something new. I am pleased with this tester. It is very easy to use.

Really easy to use and see the results

Very good can test any battery and a good price, well wrapped, clear view so you can see the amount of battery left.

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It does the job .tests a wide selection of batteries . Build quality is a bit cheap.don’t know how long itll last. But for the money excellent

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