1.BT21 digital battery tester provides different load resistances for the battery under test, so it can test the voltage battery under the condition of the load resistance provided, and you can judge the performance of the tested battery ;
2.This unit adopts a dual-integral A/D converter whose power consumption is little
3.It has the advantages of small power consumption, quick test, high precision.
4. Powered by 2 LR44 batteries.
5. MOQ:2000PCS