Description: 0 Small and practical - Simple but effective little battery tester checker(B_T-168) , compact size and lightweight,easy to carry. Testing defferent battery types - It works with quality and rechargeable household batteries: AA, AAA, C, D, 1.5V,9V and button type. Require no battery to operate - Easy-to-read ,the analog display moves on a color-coded, calibrated scale to quickly identify good (green), low (yellow), and replace/recharge (red) battery status. No batteries required.It is activated by the battery being checked. Perfect for home use - Great small tool can tell you if your battery is good, low, or needs to be replaced.A must buy for anyone who uses regular or rechargeable batteries on a regular basis. This will keep you from wasting good batteries by throwing out good ones. 0 Application: 0 9V Batteries: PP3, MN1604, 6F22, 006P 1.5V Batteries: AAA, HP16, MN2400, R03 AA, HP7, MN1500, UM3 C, HP11, MN1400, SP11, LR14, UM2 D, HP2, MN1300, SP2, R20,UM1 All kinds of button cellPerfect for home use - Great small tool can tell you if your battery is good, low, or needs to be replaced.A must buy for anyone who uses regular or rechargeable batteries on a regular basis. Testing defferent battery types - It works with quality and rechargeable household batteries: AA, AAA, C, D, 1.5V,9V and button type. Small and practical - Simple but effective little battery tester checker(B_T-168) , compact size and lightweight,easy to carry. This will keep you from wasting good batteries by throwing out good ones. Fit For: AA/AAA/C/D/9V/1.5V Button Cell Battery (Batteries not included).