AEDIKO 4pcs Battery Tester Checker Universal Small Testers for AAA AA C D 9V 1.5V Button Cell Household Batteries

Battery Size: 1.5V;(Good: 1.5V~1.28V; Low Power: 1.27V~1.15V; Replace: Below: 1.15V); Battery Size: 9V:( Good: 9V~7.8V; Low power: 7.7V~6V; Replace: Below: 6V) No Battery Required: the Device Does Not Need An Additional Battery to Work, and It Generates Electricity from the Battery Under Test; Shorten Test Time to Avoid Unnecessary Battery Consumption Digital Display Screen: the Universal Battery Tester Has Digital Display Function, Which Can Directly Display the Battery Status, Digit Indicates Power Level Essential Tool: This is An Essential Tool for People Who Need to Use Standard or Rechargeable Household Batteries; The Portable Battery Level Indicator Can Tell You Whether You Need to Replace the Battery, Thereby Effectively Avoiding Waste Portable Battery Tester: This Portable Battery Tester is Small and Light, Easy to Carry, and Can Test the Battery Anytime and Anywhere; The Small Size is Suitable for Putting in a Kitchen Drawer, Desk, Toolbox or in a Pocket Universal Battery Tester: the Battery Tester is Suitable for AAA, AA, C, D, 18650, 9V,Dry Batteries or Rechargeable Batteries; Battery Power Tester Can Display Battery Power Instantly