Widely Used: Tests AA/AAA/C/D/N/9V, 1.5V/3.7V lithium, and CR2032/LR44/L736 button cells, ideal for home use.
Digital LCD Display: Clear, accurate voltage readouts to show battery health: depleted, weak or good.
Easy to Operate: Instantly shows battery status; helps judge usability or recharge needs, reducing waste.
Battery-Free Design: Powered by tested battery directly, no built-in battery needed.
Compact & Portable: Lightweight, high precision, easy to carry and use anywhere.
+
+
Overview
Specs
Reviews
Any questions? Our AI beta will help you find out quickly.
Try me now
Widely Used:battery tester is a versatile tool designed to assess various types of batteries. It can test AA, AAA, C, D, N, 9V, and 1.5V/3.7V lithium batteries, as well as CR2032, LR44, and L736 button cells. This compact battery checker is an essential addition to any home electrical testing toolkit
Digital LCD Display:BT189 is a easy-to-use battery tester features a digital LCD screen that provides clear and accurate readings of your battery's condition, displaying the voltage levels to indicate whether the battery is depleted, performing marginally, or in optimal health
Easy to Use: Just insert a battery into the digital battery tester, and it will immediately display whether the battery's voltage is in poor, weak, or good condition. The tester reliably identifies the battery's status, making it ideal for families who frequently use both standard and rechargeable batteries. This helps determine if a battery can still be used or needs recharging, effectively reducing waste
New Battery-Free Design:Household Battery Tester operates without the need for its own power source, instead drawing power directly from the battery being tested, ensuring a longer service life.Note: DON'T POWERED BY RECHARGEABLE BATTERY NOR TEST RECHARGEABLE BATTERIES
Compact and Portable: battery tester is lightweight and easy to carry, allowing you to check your batteries anytime, anywhere. Despite its small size, it is robust and offers high precision
Learn more about the Detailed Specifications
Additional Information
First Listed on Newegg
March 10, 2026
There are no reviews yet.
Do you own this product?
Warranty & Returns
Warranty, Returns, And Additional Information
Warranty
Please contact the Seller directly for warranty information. Warranty information may also be found on the Manufacturer's website.