Accurately Test: D. C, AA, AAA batteries, N-type batteries, 9V batteries, 12V 23A batteries, 1.55V button batteries, 18650/21700/26650/14500/10440/16340 lithium batteries, made of durable plastic and stainless steel. Purpose: 1. Check the power level of 1.5-4.8V and 9V batteries. 2. Easy to operate, with digital display of power level. 3. Can test button batteries, lithium batteries, dry batteries, etc. 4. Fix the battery in the appropriate position, and the tester will start working. The two measuring points of the 9V battery are located at the bottom of the device. The battery reading will be displayed on the LCD screen. 5. If the battery is dead, please check if the battery is in contact with both contacts before determining that the battery is completely dead. 6. The battery tester is powered by the battery being checked. Please shorten the testing time as much as possible to avoid unnecessary battery depletion.
