4 Type Battery Tester

This digital battery tester is a reliable and easy-to-use tool for checking the power level of all four common hearing aid battery sizes: 10 (yellow), 13 (orange), 312 (brown), and 675 (blue). With a clear LCD display, you can quickly and accurately determine if a battery is good, weak, or dead. This helps you avoid prematurely discarding batteries that still have life, saving you money and ensuring your hearing aids are always powered when you need them. The compact design often includes a built-in compartment for storing spare batteries, making it a convenient accessory for home use or travel.