Specification Brand : QERPON BulletPoint1 : This is a kits,need buyer to assemble it. BulletPoint2 : Power display is to take some , perform simulations show the percentage of segments, such as 3.7V , take the lower 3V, the upper limit of 4.2V, 4.2-3 = 1.2V, the difference between the lower limit of 1.2V, is the battery Analog BulletPoint3 : LM3914 can accurately detect an analog , and 10 LED display, display LED is lit 10 , or in a stripe pattern individually lit LED BulletPoint4 : Display Displays the battery between the lower limit of 10 files showed that representatives of each of the lights 10% displays, on behalf of 10 lights display 0% -100% ; you can also change the single light display, is displayed only a light, more power, single-light power 4mA, all bright 42mA BulletPoint5 : Equipment needed: an adjustable power supply, accuracy of the decisions of the panel display. Watches word screwdriver. Color : Red ExternallyAssignedProductIdentifier : 7683240016043 ItemName : QERPON Kits LM3914 3.7V Capacity Module Tester LED Displa ItemPackageDimensions_Height : 7 inches ItemPackageDimensions_Length : 5 inches ItemPackageDimensions_Width : 7 inches ItemPackageQuantity : 1 ItemTypeKeyword : circboard-prototyping-boards Manufacturer : QERPON Material : Circuit board + electronic components ModelNumber : 15-775-2 NumberOfItems : 1 PartNumber : QERPON ProductDescription : Features: This is a kits,need buyer to assemble it. Power display is to take some , perform simulations show the percentage of segments, such as 3.7V , take the lower 3V, the upper limit of 4.2V, 4.2-3 = 1.2V, the difference between the lower limit of 1.2V, is the battery Analog LM3914 can accurately detect an analog , and 10 LED display, display LED is lit 10 , or in a stripe pattern individually lit LED Display Displays the battery between the lower limit of 10 files showed that representatives of each of the lights 10% displays, on behalf of 10 lights display 0% -100% ; you can also change the single light display, is displayed only a light, more power, single-light power 4mA, all bright 42mA Equipment needed: an adjustable power supply, accuracy of the decisions of the panel display. Watches word screwdriver.