LCD Digital Battery Capacity Tester Voltage Meter with Backlit for AA AAA 18650 Lithium NiMH Features： 1、Small size, light weight, the surface is waterproof. 2、 Battery capacity and voltage meter, easy to switch between two modes. 3、 High quality LCD display with green backlit and low power consumption. 4、 Simple connection with reverse protection, won't burn if connect reversely. 5、 Suitable for 12V/24V/36V/48V lead acid battery, ternary lithium battery, polymer lithium-ion battery, 3-15 series lithium ion battery, storage battery, water battery, etc. Specification： Housing color: black (as shown in the pictures) Operating current: <5MA Latent energy consumption: 12uA Display mode: backlit LCD Cable length: 300mm / 11.8 inches (approx.) Dimensions: 61.3 * 33.3 * 13.5mm / 2.4 * 1.3 * 0.5 inches (approx.) Mounting dimensions: 58.5x28.5mm / 2.3x1.1 inches (approx.) Warm tips: 1. It is designed according to the discharge curve, so the use of the discharge is relatively accurate 2. Suitable for 3.6 V / 3.7 V lithium battery and 12 V lead battery, not suitable for 3.2 V lithium iron phosphate batteries and 16 V lead acid battery Package List： 1 * Battery capacity and voltage tester 1 * Cable