Battery Tester, VTECHOLOGY Model BT-168 Battery Checker for AA AAA C D 9V 1.5V Button Cell Batteries (Requires No Battery for Operation)

Simple, works. Seems decently accurate. Works about instantly, easy to read (only real instruction that is needed is which end is positive/negative). Sometimes the readings drift, sometimes it gives slight variances when you test through same battery twice, but for the price I'm not complaining. I just wanted to know which of my rechargeable AA batteries isn't holding a charge. (Spent 15 minutes going through my junk drawer and testing stray batteries! That was exciting.)

Utile et efficace

Excellent product for people with non technical background to test cell power.

The product is simple and works reliably.

I recently picked up this battery tester, and overall it’s been working really well for me. My first order did show up with one tester that didn’t work, but the seller handled it right away and sent out a replacement without any hassle, which I really appreciated. The new set arrived quickly and both testers worked just fine. What I like most about this tester is that I’m not limited to just aaa or aa, c, d, 9v, batteries. I can check all kinds— and everything in between—which makes it way more useful than the basic ones you usually find. It’s simple to use, gives a clear reading, and saves me a lot of guessing when I’m digging through old batteries. Works well and is definitely worth having around.