3pcs 12V Lead-acid Battery Capacity Indicator Power Measurement Instrument Tester With LED Display

Specifications Work Current 5 15mA with backlight Work Voltage 6 12VEnergy Resolution 1 Voltmeter Accuracy 1 Using Temperature Range 20 70degreesOperating humidity 10 80 non condensing Black wire connect negative electrodeRed wire connect positiveExternal dimension 482921 mmHole Dimensions 45 526 5 mm How to Use 1 Pull the white button on the backside for about 3s until it shows 1 U and release it Pull it again for 1s it shows 2 b and release it Pull it again for another 1s it shows 3 c and release it Pull it again for another 1s it shows 4 d 2 When it shows 1 U pull the white button for 3s then you can adjust the voltage admeasuring apparatus Pull it for a longer time the voltage goes up Then pull it for another longer time the voltage goes down Do it again and again To save and exit Automatically after the screen is twinkling 3 When it shows 2 b you can change the type of battery 12V 1pc 12V Lead acid battery3 7V 1pc 3 7V Lithium polymer battery3 2V 1pc 3 2V Lithium iron phosphate battery1 2V 1pc 1 2V NiMH battery4 When it shows 3 c you can adjust the number of batteriesPlease refer to the following 12V Lead acid battery 1 8pcs3 7V Lithium polymer battery 2 28pcs3 2V Lithium iron phosphate battery 3 32pcs1 2V NiMH battery 10 70pcs5 When it shows 4 d you can adjust the display mode V is voltage mode is percentage mode V is voltage percentage cycle mode Capacity Display Parameters Battery voltage11 2V 1 gridBattery voltage12V 2