A resting voltage flatters a cell; a load test does not · review
A universal tester for primary and rechargeable cells with an LCD charge indication and no configuration — insert the cell and read.
What the figures leave us with Simple and unspecified. The TFA Dostmann costs less and tells you the voltage.
A tester sold on ease rather than on what it measures.
Compatibility with AAA, AA, C and D cells and 9 V blocks, for batteries and rechargeables. A high-quality LCD display showing the charge state quickly and reliably. Simple operation with no complicated setup: insert the battery and check the state immediately.
A tester with no chemistry selection has to assume one. That assumption is almost always the 1.5 V alkaline scale, which reads a fully charged 1.2 V rechargeable as partly flat. For a household drawer that is a minor irritation; for someone running a set of rechargeables it is a systematic error.
Between two testers that publish more: the TFA Dostmann states its voltages and shows volts, and the VARTA states four chemistries. This states sizes and a display.
Catalogued and unsold: the American Amazon shop lists the reference with nobody behind it.
Read from Keepa on the day this page was last revised; stock and price both move without notice.
| Amazon reference | B08B8XF32H (identical on 6 markets) |
|---|---|
| EAN | 4051287055203 |
| Power | AAA / AA / C / D / 9 V blocks · LCD charge state |
| Functions | no setup |
The listing describes an LCD showing the charge state, without stating that a voltage is displayed. The TFA Dostmann in this hub states volts explicitly.
kraftmax states compatibility with batteries and rechargeable cells across the listed sizes, without specifying how the 1.2 V nominal of NiMH is handled.
For a shared household tool, yes — a tester with a chemistry switch gets left on the wrong setting. For accuracy on rechargeables, an explicit chemistry selection is better.
7.6/ 10
Simple and unspecified. The TFA Dostmann costs less and tells you the voltage.
A reference exists on these Amazon stores: France, Germany, Italy, Spain, United Kingdom, United States. Listed is not the same as in stock — availability changes daily.
Details checked on August 31, 2026.
A household tester where the only question is whether to bin the cell.
Amazon reports what buyers took in the month before this page was last checked: at least 200.
The figure is a floor, rounded by Amazon, and read through Keepa — it says what buyers picked, not what a maker claims.
Specifications: the manufacturer sheet for measuring instruments and the matching Amazon product page. Prices and availability: Keepa. Every figure on this page names its source.
AA / AAA / C / D / 9 V / button cells · alkaline, NiMH, lithium, zinc-carbon
A tester covering every household cell size and four chemistries, showing the measured voltage and state of charge on an LCD, from a battery maker.
Best for: The drawer full of cells nobody can identify as good or flat.
6 V and 12 V lead-acid · 100–2000 CCA · battery, starter and charging tests
A different instrument from the rest of this hub: a vehicle battery tester using conductance measurement to check a 6 V or 12 V lead-acid battery, its starter draw and its charging system.
Best for: Diagnosing a car that will not start, where the question is the battery, the starter or the alternator.
≈ $68
AA / AAA / C / D / 9 V / CR123A / CR2 / button cells · three-state LCD
A tester covering the widest cell list here — including CR123A and CR2 photographic lithium cells — reporting GOOD, WEAK or LOW on an LCD.
Best for: Anyone with camera, torch or sensor lithium cells that no other tester in this hub accepts.
