This handy digital battery tester makes it easy for you to get the most out of your batteries and lets you know when it is time to get a new oneFeatures:No more guess which batteries to keep and which to throw away, a quick and simple step to test them.Place your battery in the check compartment of the battery tester, and the easy-to-read display will tell you instantly whether you have a dud.No batteries required. It is activated by the battery being checked.Checks power level of almost all 1.5V & 9V batteries.Compact size and lightweight, easy to carry.A must buy for anyone who uses regular or rechargeable batteries on a regular basis.Specifications:Supporting battery types: 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, 006PTypes: 2 types (optional)Item size: 110 * 59 * 25mm / 4.33 * 2.32 * 0.98inItem weight: 51g / 1.8ozPackage weight: 53g / 1.87ozPackage size: 12 * 6.5 * 3cm / 4.7 * 2.56 * 1.18inNote: 1. If needle does not move, check whether the battery is installed correctly before assuming that it is completely dead.2. Keep test time as short as possible to avoid unnecessary battery drain.Package list:1 * Battery tester