Battery Tester Battery Capacitance Diagnostic Tool with LED Indicator for AAA AA Battery

Feature Made of high quality material durable firm and has a long service life This battery tester is simple to use just install the battery to be tested into the battery slot and display the actual battery power intuitively and accurately through the number of lights on Four indicator lights make the electricity measurement more accurate Universal Button Battery Checker Tester for AA AAA batteries Specification Item Type Battery TesterMaterial plastic metalSize 10x3cmColor BlackInstructions Put the battery into the battery compartment and judge the power according to the indicator light 4 lights on full battery 3 lights on there is more power 2 lights on low power small power appliances such as mouse and remote control can still be used 1 light on almost empty suggest replacement Package Included 1 x Battery Tester