Kits LM3914 3.7V Lithium Battery Capacity Module Tester LED Displa
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 lithium 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 Analog power up
LM3914 can accurately detect an analog and 10 LED display, display dot LED is lit 10 or in a stripe pattern individually lit LED
Display Description: Displays the between the lower limit of 10 files showed that representatives of each of the lights 10% displays, on behalf of 10 lights display 0% you can also change the single light display, is displayed only a light, more power, single-light power 4mA, all bright 42mA

A variety of and low display adjustment:
1. Lithium
After the completion of a single lithium discharge is 3V, when fully charged 4.2V;
1S correspond to 3V (first light) to 4.2V (tenth lights);
2S corresponds to 6V (first light) to 8.4V (tenth lights);
3S correspond to 9V (first light) to 12.6V (tenth lights);
4S correspond to 12V (first light) to 16.8V (tenth lights);
Other series and so on.
2. Acid Batteries
6V or 12V lead-acid is generally:
6V corresponds to 4.8V (first light) to 6.75V (tenth lights);
12V corresponds to 9.6V (first light) to 13.5V (tenth lights);
The module according to the above standard discharge can accurately reflect the so that users can readily observe the of the

Adjustment of the following methods:
Equipment needed: an adjustable power supply, accuracy of the decisions of the panel display. Watches word screwdriver.
for Case in single 3.7V lithium, 3V is less low-end power, 4.2V for the full power of high-end.
1, the adjustable power supply to the desired display 4.2v, this board, this for time there are two results: is not bright, is all bright or light a few. This for time slow adjustment plate 503 (50k) potentiometer until the LED just lit up the whole. Several light does not or counterclockwise to adjust, when full light clockwise.
2, the adjustable power supply to the low end of the desired 3V. Adjustment board 502 (5K) potentiometer to just light a LED, does not light clockwise adjustment, several or all bright light counterclockwise.
3, patiently repeating the first step two. Usually 2 times to adjust to the desired display

Display A

Note:
To adjust their according to the of adjusting the order, to emphasize high-end, then adjust the low end.Red then positive, then negative black, must not be reversed, this module is the limit for 20V, please use anti-static welding or soldering station pull electric heat welding

Specifications:
Power: display full brightness 42mA, single light shows 4mA
Measuring
Light Color: Green Blue
Display: Multi-light display or a single light dot display
Suitable for lithium batteries, lead-acid batteries and other power batteries need to be displayed
Power adjustable display for the discharge of a scientific setting, direct support: single lithium 1S (4.2V) ~ 4S (16.8V), acid 6V ~ 12V, NiMH 3.6V ~ 18V, nickel-cadmium batteries 3.6V ~ 18V
Size: 4.5x1.9cm/1.77x0.75inch
Quantity: 1 Pc
Note:
Please allow 1-3mm error due to manual measurement. pls make sure you do not mind before you bid
Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!

Package Contents:
1 Battery Capacity Tester