2Pcs Battery Tester Checker, Universal Battery Checker for AA AAA C D 9V 1.5V Button Cell Household Batteries Smal Electrical Monitor Meter Equipment (Requires No Battery for Operating)

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.

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.

Works perfectly for checking all my household batteries, no more wondering which ones are good. Simple to use and accurate, but hard to hold the battery while checking. A must-have tool in the battery drawer.

Nice idea, just wish it would hold battery being tested more snugly between the+ and - straps. Otherwise seems to work well. My older tester went south. So needed a new one.

These have saved me money and a lot of frustration. It is simple to use and gives peace of mind knowing I am not wasting good batteries. A small tool that makes a big difference.

The battery tester I was seeking...easy to use....very accurate...easy to store...lightweight...as functional as it gets...I was hesitant, yet I tried it with my batteries and it works....it may not be the top of the line battery tester...but it works for me

From what I can tell they work. I took several batteries and checked them on both testers. In most cases they tested out almost the same. I then compared them to another battery tester I have been using for years and they came out fairly close, sometimes reading "lower" than the tester I have been using for years, suggesting the battery may have less juice than what my older test indicated. I did not do any testing of these with a volt/ohm meter. I have done that in the past with my tried and true older tester. Yes, that would have been a much better test, but for the price of these testers and what I need them for, I just didn't take the time. Why only 3 stars? These are extremely light weight plastic. I found this to be somewhat of an issue. It seemed to make it more difficult to handle. To measure the battery, you have to adjust the plastic slide that has a connector on it. Then you need to put pressure on the slide with the battery in between the slide connector and the top connector to make a connection. Then the meter will register. BUT, you have to keep the battery in place and often it slides around between the connectors, so the connection is broken. With a little practice I got better. This is where I think a little more weight would be better. I think that would help to handle the tester when trying to balance the battery between the slide connector and the top connector. Just my thoughts. Would I buy again, for the price they will do what I need them to do; keep them near where I store my batteries to check when needed. I like that they come in the two pack. I like being able to test the batteries using both to do a double check. I would be very concerned if I was using these daily and in a garage environment. I worry about placing them somewhere that they may have stuff placed on them, e.g., a junk drawer. I also worry about dropping them. Again, if I dropped one, I like that I have a backup to check to see if the other one still works and just as a backup, but I would be concerned that they might chip or even shatter. So concerns about functionality. I feel okay with accuracy. Not too hard to read as long as I have my glasses on. Will update later if needed.

A must home utility, instead of guess working battery capacity this really helps with decluttering good and bad batteries.. tested all different sized batteries and it was easy to handle.. reduced a star because it feels bit flimsy on the hand..

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

The product is simple and works reliably.

Good product

The BT-168 Battery Tester is a good product. Worth the price. Thank you Amazon.

It works!