Ansmann introduces their compact Energy Check battery tester for N, AAA, AA, C, D and 9V NiMh, NiCd and Alkaline cells! It tests cells under the proper load and reads the capacity via LED"s from 0 to 100%. Simply place the cell in the tester and squeeze the ends of the tester.No cords or contacts to connect! Simple one hand operation! Now, any one can easily test all common household batteries so they know when to recharge or buy new batteries. The Energy Check operates from a 9V battery that is supplied with the tester!