HIGH COMPATIBILITY: Universal battery tester for 1.2V Ni-MH/CD, 1.5V Alkaline, 3.0V Lithium, 3.7V Li-ion, 9.0V; Supports AAA AA C SC D N sizes, button cells, CR123A, CR2032, LR44, 18650 and more, offering versatile compatibility for various applications SMART LCD DISPLAY: The precise digital battery tester shows what you need to know about your battery voltage and health, accurately indicating whether the voltage is good, weak, or poor ONE-TOUCH, EASY TO USE: Press the V-SELECT button briefly to power on and cycle through battery types. Quickly double press to turn the buzzer on/off. Long press to power off MAGNETIC BATTERY SLOT: Simply place the battery into the battery checker tester and slide the magnetic slider to secure it firmly. No worries about slipping, easily test with one hand COMPACT & LONG BATTERY LIFE: Rechargeable household battery tester with USB-C input. Full charge lasts up to 15 hours, no need for frequent Power supply battery changes. Portable and easy to store WHAT YOU WILL GET: Dlyfull-DB1 battery health tester & checker, USB-C cable (No Adapter !), welcome guide, 18-month warranty, and lifetime 24-Hour friendly customer service

Dlyfull Battery Tester, LCD Display Universal Battery Checker for Ni-MH, Ni-CD, Li-ion, Alkaline, 1.5V/3V Button Cell Batteries(AAA AA C D 9V 18650 CR123A LR44 CR2032 Cells), Cable Included.