Universal Battery Tester
AgriTech Products Ltd. [China]
Detailed Product Description
Compact Size Tests "AA", "AAA", "C", "D", 9V, "N"
3 LED lamps indicates 3 power-status:
3-LED lighting: The battey is good;
2-LED lighting: The battery is weak and can not last for long time;
1-LED lighting: The battery is very weak or dead, should be replaced