Detect the energy level of batteries ranging from 1.5-4.8V and 9-12V.Easy to operate, with a digital display of the power level.It can test button batteries, lithium batteries, dry batteries, etc.(1)Ultra-wide voltage detection:There are two power levels: 1.5 to 4.8V and 9 to 12V.Battery Bar/Value Dual DisplayCover AAA/AA/C/D/CR2016 AG0/14500/16340/10440/18650/9 V / 12 V/button battery, etc. all specifications.(2)One-click quick test:Plug it in and read the results immediately. Get the results in 3 seconds. Zero learning cost.(3)Battery-free design:The measured battery is the power supply, no need to change the battery outdoors, really handy(4)LCD Intuitive display,Instant detection(5)Reverse polarity protection:Even if it is mistakenly inserted in reverse polarity, it not burn out the machine. Beginners can use it with confidence(6)Anti-drop ABS, no damage if dropped from 1 meter on the construction site(7)Quick battery inspection tools for household remote controls, car keys, electric toys, solar lamps, walkie-talkies, emergency lights, etcColor: BlackMaterial: ABSPackage Contents:1 x Battery TesterOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.