ITEM NAME:Universal LCD Battery Tester Battery Volt Checker for AA AAA C D 1.5V 9V img *{margin:0;padding:0;.Functions: It can be used to test the following battery size: For 9V, type D, type C, AA, AAA, button cell. 1 Piece BT168D Smart LCD Digital Battery Tester. Temperature Range: 40 ℃.