Universal Battery Tester — Know Your Power in Seconds (No More Guesswork)
Stop tossing “maybe-dead” batteries and keep your everyday devices running without interruption. The Universal Battery Tester gives you a fast, accurate read on battery health in seconds—so you’ll instantly know what’s good to use, what’s weak, and what’s ready to recycle.
✅ Instant, Clear Results at a Glance
The large LCD display makes battery status easy to understand—no confusing numbers, no second‑guessing. Just insert the battery and get an immediate capacity reading so you can act fast.
✅ Works with Almost Every Battery You Use
One tester covers the batteries found around your home, office, and toolbox:
- AA / AAA
- C / D
- N
- 9V (6F22)
- 1.5V / 1.55V button cells (SR44, LR44)
Perfect for remote controls, toys, flashlights, clocks, cameras, controllers, wireless devices, and more.
✅ Saves Money (and the Frustration)
This is the simple diagnostic tool that pays for itself:
- Avoid buying replacements when batteries still have life
- Stop wasting time troubleshooting devices
- Sort batteries confidently—keep the good, replace the weak
✅ Compact, Lightweight & Built for Anywhere
Slim, sturdy, and portable, it slips easily into a drawer, tool kit, or bag—ready whenever you need it. Ideal for DIY projects, household maintenance, and quick checks before you head out.
✅ Easy to Use — Anyone Can Do It
No apps, no setup, no learning curve. Insert the battery → read the display → done.
Key Features (Quick Scan)
- Universal compatibility (multiple battery sizes & types)
- Large LCD for easy reading
- Fast capacity testing in seconds
- Compact & lightweight for storage and travel
- Durable ABS body
- Powered by 1.5V cell battery
Specifications
- Material: ABS
- Color: Silver
- Size: 92 × 63 × 14 mm
- Weight: 45 g
- Supported Batteries: C, D, N, AA, AAA, 9V (6F22), SR44, LR44, 1.5V / 1.55V button cells
- Power: 1.5V cell battery
🔋 Bottom line:
If you use batteries at home, you need this. The Universal Battery Tester helps you save money, reduce waste, and keep devices working—with instant confidence every time.
I will purchase again~~~
I used a height adjuster other than this one, but I needed another measuring device, so I bought this one. This is measured by fitting it into the correct size, so it might feel a bit uncomfortable at first. But comparing it makes it inconvenient; people who have only used this wouldn't even know it's inconvenient haha. The labeling method is better because it's more detailed. Highly recommend it; works well.
Excellent tool for checking all types of batteries, the shipping to my country Mexico was super fast, I highly recommend this store, thank you.
It works well~~ I compared it with the tester and it's similar.
order processed in very short time, supreme fast shipping, very good product easy to use
A very useful gadget, should be in every home.
AA and AAA work very well. I haven't tried square batteries or button batteries, but they are already sufficient.
I tried it on and it checks well.
It's nice to be able to easily check the battery level. It's convenient to use.
Very good product
works perfectly
It arrived in 3 days.. I like it..
I also know.
It's great to use at home, works well, and I'm satisfied.
There are some areas that are a bit tight for inserting AAA batteries, but it's convenient to quickly check the battery status easily.
The AA batteries are difficult to insert, but I checked them anyway. They are not good batteries, new ones are needed, but they work fine. Easy to understand and see. The AA batteries are too hard, so I give it 4 stars.
I think I made a good purchase. It's very useful.
I've already ordered and used it several times because it seems very helpful when used sparingly.
It's a neat and aesthetically pleasing product. There's a slight feeling of height in the keycaps, but that seems to be a matter of personal taste! I recommend it.
Very satisfied.
The product arrived perfectly functioning very well and it's very easy to see how charged the battery is.
It works great and is also super useful. It's the typical thing you always need in a house.
It works without any problems.
Excellent, works well, just what I needed, fast shipping, I recommend the seller.
works perfectly