La Crosse 911-65557-INT Portable Digital Battery Tester,Black
Quick take
The La Crosse 911-65557-INT is a compact, self-powered digital battery tester for common household batteries, including alkaline and rechargeable AA, AAA, C, and D, plus 3V lithium button cells and 9V batteries. Buyers like that it gives a numeric voltage readout (not just “good/weak”), but it is still a voltage check, so real-world performance depends on how the battery holds up under device load.
Pros and cons
Pros
- Tests multiple battery types and sizes, including alkaline, rechargeable (via 1.2V mode), 3V lithium button cells, and 9V (side contacts).
- Simple, cable-free operation, powered by the battery being tested.
- Digital voltage display helps you compare batteries by reading actual volts.
- Small enough to carry in a tool kit, purse, camera bag, or backpack.
Cons
- Readings are voltage-based, so “strength” indicators may not fully predict how a battery will perform under load in your device.
- Best results depend on choosing the correct voltage range (1.5V vs 1.2V vs 3.0V) for the battery chemistry you are testing.
What buyers think
Across buyer feedback, the most consistent themes are convenience and usability. People describe it as compact, easy to use, and a noticeable upgrade from basic testers that only show colored statuses, because it displays a clearer digital voltage readout. Reviewers also highlight the tester’s versatility for mixed battery drawers, especially the ability to check many common sizes and chemistries without needing a separate power source or a multimeter.
Buyer-review evidence also points to one practical expectation: while the display provides timely voltage information, users comparing it to a higher-end multimeter report small differences, which is typical when comparing open-circuit versus loaded measurements. The takeaway is that it is very useful for sorting and deciding what to replace, but it is not a full substitute for diagnosing performance under load.
How it works (and what you can test)
This tester is designed for quick, one-battery-at-a-time checks. It is self-powered, meaning you do not need to insert separate batteries to operate the tester. You select the voltage range that matches the battery type, insert the battery with the correct polarity using the orange terminal tray, and read the voltage and strength level on the LCD.
Battery sizes and modes
- 1.5V mode: alkaline AA, AAA, C, D, and N batteries
- 1.2V mode: rechargeable AA, AAA, C, D, and N batteries
- 3V mode: lithium button cell batteries (3.0V class)
- 9V battery: uses touch contacts on the side of the tester
Pros and cons, for real-world battery sorting
Why it’s a good fit
- You have mixed batteries. If your household uses everything from AA and AAA to 9V and small button cells, this tester’s supported range reduces guesswork.
- You want voltage numbers, not just “OK/low.” Buyers appreciate that a digital readout makes it easier to compare batteries and decide what to keep.
- You prefer a fast workflow. The cable-free, self-powered design means you can test on the spot, then put the battery back into the right drawer.
Where buyers should be careful
- Voltage tests are not the same as load tests. A battery can show a certain open-circuit voltage but still sag more quickly when your device draws current. If you are diagnosing stubborn performance issues, you may still need additional testing methods.
- Match the voltage setting to the battery chemistry. Using the wrong mode (1.5V vs 1.2V, for example) can lead to misleading readouts.
Battery tester buying guide: is this the right style for you?
Most battery testers fall into two camps: basic “good/weak” indicators, and digital testers that show actual voltage. The La Crosse 911-65557-INT leans digital, with a focus on common household sizes and quick checks. That makes it well-suited for everyday tasks like sorting rechargeable packs, checking key fob batteries, and screening batteries before you toss them.
Consider alternatives if…
- You need to test batteries under heavier load, not just by voltage.
- You expect to check batteries outside the listed size and chemistry categories regularly.
- You already rely on a multimeter and want more lab-like measurement options.
Verdict
The La Crosse 911-65557-INT portable digital battery tester is a practical choice for anyone who wants a compact, easy-to-use way to sort and evaluate batteries by numeric voltage. It is especially appealing if you deal with mixed AA, AAA, C, D, 9V, and 3V button cells, and you would rather see real voltage readings than vague color indicators. Just remember, it is best for sorting and replacement decisions, not for predicting how batteries will behave under device load.
FAQ
Can this tester check both alkaline and rechargeable batteries?
Yes. It supports alkaline batteries in the 1.5V range and rechargeable batteries in the 1.2V range, including common sizes like AA, AAA, C, and D.
Does it test 9V batteries?
Yes. The tester includes side touch contacts for checking 9V batteries.
Will it work with 3V lithium button cells like CR2032?
It is designed for 3V lithium button cell batteries using its 3.0V selection mode (you can use it for 3V class button cells such as CR2032).
Does it require batteries to operate?
No. The tester is self-powered by the battery you are testing.
How accurate is a battery voltage tester versus a multimeter?
Voltage testers provide useful voltage information for sorting, but small differences can occur when comparing to a multimeter, especially because measurements can vary between open-circuit and loaded conditions.
Is this good for deciding whether to replace a battery?
Yes. The numeric voltage readout is helpful for judging which batteries are likely near the end of their usable life, particularly when you’re sorting mixed batteries before putting them into devices.
Specifications
| Product Title | La Crosse 911-65557-INT Portable Digital Battery Tester,Black |
|---|---|
| Category | Electronics > Household Batteries, Chargers & Accessories > Battery Testers |
| Brand | La Crosse Technology |
| Manufacturer | La Crosse Technology, Ltd. |
| Color | Black |
| Power Source | Battery Powered |
| Minimum Operating Voltage | 1.2 Volts |
| Measurement Type | Voltmeter |
| Compatible Devices | Camera |
| Style Name | Digital |
| Item Dimensions | 3.53 x 1 x 0.98 inches |
| Brand Name | La Crosse Technology |
| Model | 911-65557-INT |
| UPC | 757456075556 |
| Warranty Description | 2 year limited parts and labor |
| Part Number | 911-65557-INT |
| Included Components | battery tester |
| Unit Count | 1 Count |
| Style | Digital |
| Item dimensions L x W x H | 3.53 x 1 x 0.98 inches |
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