5 Best Battery Testers

BEST OF THE BEST

DLYFULL

Universal Battery Checker

Simple Yet Solid

Basic tester with a large LCD that shows remaining voltage for many common battery types.

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PROS

Tests all cylindrical batteries such as D, C, AA and AAA.
Also tests more exotic types like CR2s and N sizes, 9-volt and button batteries.
Compact model runs on a single AAA battery.
Its anti-slip finish makes it easy to grip as you test.

CONS

Readings can be inconsistent.
Some battery types fit better in this tester than others.

BEST BANG FOR THE BUCK

D-FantiX

Universal Battery Checker

Feature-packed

The big analog dial on this tester let's you Immediately see a battery's remaining power.

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PROS

It draws power from the batteries it tests, so it needs no added power source.
Checks the status of common household batteries as well as 1.5-volt, 9-volt and button batteries.
Fits nicely into a pocket, as it measures a mere 4.33 x 2.36 x 0.98 inches.

CONS

Inconsistent readings prompt some users to do multiple retests just to be sure.

ZTS

Multi-Battery Tester for More than 30 Different Battery Types

Most Comprehensive

Very capable tester that can handle myriad battery types and check their charge status with ease.

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PROS

Versatile unit can test 30 different batteries quickly and safely.
Employs a pulse load test for improved accuracy.
Tests both rechargeable and primary batteries.
Provides clear labeling to let you know where to connect each type of battery for testing.

CONS

Offers more functionality than many need.
A bit bulky, so may be best in a workshop.

WeePro

Battery Tester

Most Versatile

You're certain to be all charged up for your next adventure when you use this compact battery tester.

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PROS

Three lights indicate battery power levels so you can see what needs to be charged at a glance.
Test 9-volt, AAA, AA, D and C batteries as well as button batteries.
This little gadget measures 4.2 x 2.2 x 0.7 inches, and it will fit in a pocket or purse.

CONS

To get a good reading you must hold the battery in place by hand.
It delivers some random readings.

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How We Tested

We recommend these products based on an intensive research process that's designed to cut through the noise and find the top products in this space. Guided by experts, we spend hours looking into the factors that matter, to bring you these selections.

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First Reviewed

June 09, 2023

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