<b>Name: 2016 New Waterproof Design Battery Capacity LED Tester Voltmeter</b><br> Work Current:< 5-15mA (with backlight)<br> Energy Resolution:1%<br> Voltmeter Accuracy :1%<br> Temperature: -20~70°C<br> Humidity:10-80%<br> Black wire connect to negative, red to positive<br> External Dimension:48×29×21 mm<br> Hole Dimensions :45.5×26.5 mm<br> With a shell, easy to use stand-alone or embedded in the panel on the product.<br> Display Mode:Battery +voltage,Battery +Percentage<br> Supply voltage: DC6-120V (maximum)<br> Test voltage: DC6 ~ 120V<br> <br> <b>How to use:</b><br> <br> 1. Push the button for about 3s until it shows "1-U" and release it. Push it again for 1s it shows "2-b" and release it. Push it again for another 1s it shows "3-c" and release it. Push it again for another 1s it shows "4-d".<br> <br> 2. When it shows "1-U", push the button for 3s then you can adjust the voltage admeasuring apparatus. Push it for a longer time, the voltage goes up. Then push it for another longer time, the voltage goes down. Do it again and again. To save and exit Automatically after the screen is twinkling.<br> <br> 3. When it shows "2-b", you can change the type of battery.<br> 12V: 1pc 12V Lead-acid battery<br> 3.7V: 1pc 3.7V Lithium polymer battery<br> 3.2V: 1pc 3.2V Lithium iron phosphate battery<br> 1.2V: 1pc 1.2V NiMH battery<br> 4.When it shows "3-c", you can adjust the number of batteries.<br> <b>Please refer to the following:</b><br> 12V Lead-acid battery: 1-10pcs<br> 3.7V Lithium polymer battery: 2-28pcs<br> 3.2V Lithium iron phosphate battery: 3-32pcs<br> 1.2V NiMH battery: 10-70pcs<br> 5. When it shows "4-d", you can adjust the display mode. "V" is voltage mode. "%" is percentage mode. "V %" is voltage& percentage cycle mode.<br> <br> <b>Package include :</b><br> 1 x Digital Battery Capacity LED Tester Voltmeter<br>