Review on Dlyfull LCD Battery Tester - Universal Checker For AA AAA C D 9V CR2032 CR123A & More, 2X AAA Batteries Included by Gavin Dunne

We use a tone of rechargeable batteries when we are filming. It's extremely important that our batteries are fully charged, so we constantly test batteries prior to filming. As you can imagine, that can be a daunting task! This tester simplified the job immensely. I also love that it can be used for a wide variety of batteries, and for the cost, this product is a no-brainer.The only thing that I wish it had was a backlight that would allow the display to be more visible. I do understand that, for the cost, a backlight might not be feasible, however, I would be willing to pay a few dollars more for that feature.