Ansmann button battery tester
(2314 reviews)
The specialised tester for button cells: alkaline and lithium (CR2032, LR44...). LEDs show the state of charge at a glance, with no battery required.
Characteristics
- Formats: Button cells (alkaline/lithium)
- Display: LEDs
- Power: No battery required
- Use: CR2032, CR2025, LR44...
- Button-cell focus, instant reading
Detailed overview: Ansmann button battery tester
The Ansmann button-cell tester is dedicated to the small cells that a universal tester often handles poorly: alkaline and lithium button cells (CR2032, CR2025, CR2016, LR44 and others). You place the cell on the contact, and LEDs immediately show whether it is full, low or empty. No battery is needed to operate it. Compact and from an energy specialist brand, it is perfect for checking the cells of your remotes, car keys, scales, thermometers, toys and other button-cell devices.
In practice, testing your batteries regularly avoids two pitfalls: throwing away good cells (waste and cost) and being caught out at the wrong moment. A tester also helps spot a weak cell in a set, the one that unbalances and underperforms a device. Keep it handy in a drawer: it quickly pays for itself and cuts your waste.
Comparison
At around 8 to 60€, here is how this tester sits against the other popular battery testers in our selection.
| Criterion | BT-168 universel | Ansmann piles boutons | Varta LCD | Ansmann Energy Check LCD |
|---|---|---|---|---|
| Formats tested | AA/AAA/C/D/9V | Button cells | AA to 9V + buttons | AA to D, 9V, buttons |
| Display | Needle (colour scale) | LEDs | LCD screen | Backlit LCD |
| Button cells | Yes | Specialised | Yes | Yes |
| Profile | Simple, no setting | Button-cell focus | Consumer | Versatile / pro |
| Observed price | ≈ 8 € | ≈ 12 € | ≈ 13 € | ≈ 56 € |
Our tester's review: Dawid Lojewski
It is the accessory you never think of buying until the day a car key or a scale dies. Universal testers handle button cells poorly, here it is their speciality: you place the CR2032, an LED lights up, and you know instantly. We rediscovered a stock of button cells of unknown state, and sorting took two minutes. The Ansmann brand is a mark of seriousness. Of course, it is a niche product: if you never handle button cells, a universal tester will do. But as soon as you have several CR2032/LR44 devices at home, it renders proud service and avoids buying new cells needlessly.
Other products in the "Battery testers" category
Ansmann Energy Check LCD
55.95€ (88)
Ansmann's premium versatile tester: from button cell to car battery, with a backlit LCD screen and under-load measurement. For those who want the serious option.
BT-168 universal battery tester
7.85€ (1387)
The classic, unbeatable battery tester: a needle, a colour scale, and in a second you know if a battery is good, low or to be binned. No battery required.
Varta LCD battery tester
13.35€ (2529)
The Varta-branded tester with LCD screen: it checks all common battery formats and clearly shows their state. Handy, readable and from a recognised brand.
Published on 10/07/2026