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LM3914 Blue LED Bar Display Module 10 Segments Battery Power Indicator Battery Capacity Indicating Tester DIY Kits

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Product Introduction:
1.Power Consumption:all lamps on 42mA;single lamp on 4mA
2.Measurement Range:universal 2.4-20V batteries
3.Color: Blue
4.Display Way:multi-lamp bar display or single lamp dot display
5.PCB Size:45*14mm
6.Adaptive for lithium batteries,lead acid batteries and other batteries which need
 display electricitiy quantity.
7.Power display adjustable;support single lithium battery 1S-4S (4.2V-16.8V);
 lead acid battery 6-12V;Ni-MH 3.6-18V;nickel-cadmuum battery 3.6-18V.
8.Display Way Introduction:display battery upper/lower limit voltage,and it can be
  divided into 10 gears;every lamp on represents display 10%;10 lamps on represents
  display 0-100%;and it can be also changed into single lamp display,that means only
  one lamp is on.

Lithium Battery:
After single lithium battery discharges,its voltage is 3V,when fully charged,it is 4.2 V
1S-->3V (the first lamp) to 4.2V (the tenth lamp)
2S-->6V (the first lamp) to 8.4V (the tenth lamp)
3S-->9V (the first lamp) to 12.6V (the tenth lamp)
4S-->12V (the first lamp) to 16.8V (the tenth lamp)
other parallel voltage so on

Lead Acid Battery:
Lead acid battery usually is 6V or 12V battery
6V-->4.8V (the first lamp) to 6.75V (the tenth lamp)
12V-->9.6V (the first lamp) to 13.5V (the tenth lamp)

Adjustment Way:
Necessary Equipment:adjustable stabilivolt power;screwdriver
Take single lithium battery 3.7V as example,3V is undervoltage low port;4.2V is full power high port
1.Adjust adjustable power to voltage high port 4.2V,then connect with this board;and there may be
  2 results:not on or all on or several on;then adjust 503 potentiometer slowly until LED is all on;
  if it is not on or several on,please counter clockwise adjust;if all on,please clockwise adjust.
2.Adjust adjustable power to voltage low port 3V,then adjust 502 potentiometer until there is a lED on;
  if it is no on,please adjust it clockwise;if there is all on or several on,please adjust it counter clockwise.

If there is no high-precise adjustable power,then charge the battery to full power that is high port voltage;
when the battery discharges completely that is low port voltage;connect with the board and adjust.

1.Please operate according to above instructions;first adjust high port then adjust low port.
2.Red wire connects with positive,black wire connects with negative.Please don't connect it reversely;
  the maximum limit voltage is 20V,please use anti-static bonding pad.

Finished Product Picture:

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1. Hongkong / Sinapore Airmail

(1) Due to the high risk of package lost recently, we have to stop using the free shipping way these days. Hope for your kind understanding! And the $3 is for tracking number and delivery insurance ^0^ Enjoy order from us. 

Free Shipping for all orders over $20 ^0^ (with free tracking number and delivery insurance fee)

(2) Shipping time 
Shipping time is 7-20 business days to most of countries; please view below table for exactly shipping time to your location. 

7-15 working days to: Most of Asia countries
10-16 working days to: USA , Canada , Australia , UK , Most of Europe countries
13-20 working days to: Germany , Russia
18-25 working days to: France , Italy , Spain , South Africa
20-45 working days to: Brazil , Most of South America countries

2. EMS/DHL/UPS Express

(1)Shipping Fee: Free for the order which meet the following requirements
Total price of the order >= 200USD or Total weight of the order >= 2.2KG

When the order meets to one of the above requirement, it will be shipped for FREE via EMS/DHL/UPS Express to below country. 
Asia: Japan , South Korea , Mongolia . Malaysia , Singapore , Thailand , Vietnam , Cambodia , Indonesia , Philippines 
Oceania: Australia , New Zealand , Papua New Guinea 
Europe& America: Belgium, Britain, Denmark, Finland, Greece, Ireland, Italy, Luxembourg, Malta, Norway, Portugal, Switzerland, Germany, Sweden, France, Spain, USA, Austria, Canada
Note: Shipping Fee to other countries, please contact orders@ICStation.com

(2) Shipping Time
Shipping time is 3-5 working day (about 1 week) to most of countries. 

Because the package would be returned to the sender if it had not been signed by the receiver in 2-3 day (DHL) or 1 week (EMS,) or 2 weeks (Registered Email), please pay attention to the arriving time of the package. 


1) APO and PO Box Addresses

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Because that DHL and FedEx are unable to deliver items to APO or PO BOX addresses. 
2) Contact Phone Number
Receivers' contact phone number is required by express shipping agency for the package delivery. Please provide us with your latest phone number.

3. Note
1) Delivery Time of mixed orders with items in different Shipping Status should be calculated using the longest estimate times listed. 
2) Chinese Holiday Reminder: During annual Chinese holidays, services from certain suppliers and carriers may be affected, and delivery for orders placed around the following times may be delayed by 3 - 7 days: Chinese New Year; Chinese National Day,etc. 
3) Once your order is shipped, you will receive an email notification from icstation.com
4) Track the order which with tracking number via below links:

Registered Airmail: www.17track.net/en

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LM3914 Blue LED Bar Display Module 10 Segments Battery Power Indicator Battery Capacity Indicating Tester DIY Kits