Features and Benefits * Multi-purpose Battery Condition Checker * Testing more than 12 types of rechargebale and non-rechargeable batteries: AAA, AA, C, D, 9V and CR123A, CR2, CRV3, 2CR5, CR-P2 Button cells or other batteries with same voltage * One battery tested at each time, its strength is shown on the LCD display Index of the LCD Display: LCD Display Rechargeable Battery Primary/Alkaline Battery Columns 1-4 (POOR) Battery is empty, should be recharged Battery is empty, should be disposed properly Columns 5-9 (FAIR) Battery with limited strength left, it should be recharged Battery with limited strength. Limited usage or disposal recommended Colimns 10-18 (GOOD) Battery has adequate power Battery has adequate power #One AA battery is needed (not included) to power the checker#