2 Pieces Battery Tester Control, Universal Battery Control Model BT-168 AA AAA C D 9V 1.5V Button Batteries Small Electrical Equipment (No Battery Required for Operation)

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.

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

The product is simple and works reliably.

I bought this set to replace a unit that had recently failed. I chose the two-pack option so I’d always have a backup—especially since the original stopped working unexpectedly. So far, the new one is performing well. It feels sturdier than its predecessor, and the build quality seems improved. I’ve tested it with several battery types, all of which worked reliably. The power gauge also appears more accurate, which is a welcome upgrade. Whether it's simply because it's newer or genuinely better engineered, this version is a noticeable improvement—and I’m fully satisfied. A word to the wise: always keep a spare. You never know when one will reach the end of its useful life. And at this price point, having an extra on hand is well worth it. It saves you from the frustration of guessing whether an old battery is still good or not.

Shows strentgth of battery (not voltage). But they are good for daily use.