BT168D BT168 BT-168 Digital Battery Capacity Tester LCD BT-168D Checker for 9V 1.5V AA AAA Cell Batteries Volt Tester for 18650 BT-168D: 9v battery: The full voltage of nickel-metal hydride, lithium battery, and alkaline is different, but it must be above 8V, and the uncharged voltage is generally below 7V; 1.5V primary batteries Full power is about 1.6v, no power is about 1.0V; 1.2v NiMH, NiCd rechargeable battery: Full power is about 1.3V, no power is about 1.0V BT-168: Red (RE-PLACE replacement or RE-CHARGE charging): If the indicator needle points to this block, the battery under test needs to be replaced or recharged, that is, the battery is basically unusable; Yellow (LOW): The battery is low, but some appliances can still be used Green (GOOD): the battery is fully charged Universal Button Battery Checker Tester AA AAA C D 9V Don\'t for Gue Which Batteries to Keep and Which to throw Away, Place your battery between the two points of the battery tester, and the easy-to-read display will tell you instantly whether you have a dud, or if you can eke out another few minutes of battery life. Checks power level of all 1.5V &9V batteries Easy to read, colour coded meter indicates power level Tests 1.5V miniature cells Three result: red=replace, yellow=low power, green=good If needle does not move,check that battery is touching both contacts before auming that it is completely dead. The battery tester may be used to test the following sizes: 1.5V: AAA,for HP16, MN2400, R03 AA, HP7, MN1500, UM3 C, HP11, MN1400, SP11, LR14, UM2 D, HP2, MN1300, SP2, R20,UM1 9V: PP3, MN1604, 6F22, 006P Operating conditions: 0-40C, 25% - 80%RH Product size: 113x64x30mm Product weight: about 48g Package inluced: 1 x battery capacity tester(not included battery)