LM3914 Battery Capacity Indicator Module LED Power Level Tester Display Board
$10.99
LM3914 Battery Capacity Indicator Module LED Power Level Tester Display Board

LM3914 Battery Capacity Indicator Module LED Power Level Tester Display Board

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$10.99

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Product Description

Features:
 
- This is a DIY kits,need buyer to assemble it.
- Power display is to take some voltage, perform simulations show the percentage of segments, such as 3.7V lithium battery, take the lower voltage 3V, the upper limit of 4.2V, 4.2-3 = 1.2V, the voltage difference between the lower limit of 1.2V, is the battery Analog power up
- LM3914 can accurately detect an analog voltage, and 10 LED display, display dot mode LED is lit 10 one, or in a stripe pattern individually lit LED
- Display Description: Displays the battery voltage between the lower limit of 10 files showed that representatives of each of the lights 10% charge displays, on behalf of 10 lights display charge 0% -100% range; you can also change the single light display, is displayed only a light, more power, single-light power 4mA, all bright 42mA.
- Suitable for lithium batteries, lead-acid batteries and other power batteries need to be displayed
- Power adjustable display range for the battery discharge curve of a scientific setting, direct support: single lithium 1S (4.2V) ~ 4S (16.8V), lead acid 6V ~ 12V, NiMH 3.6V ~ 18V, nickel-cadmium batteries 3.6V ~ 18V
  
Parameter:
 
Power: bar display full brightness 42ma, single light shows 4ma
Measuring range: the battery inside the common 2.4-20v
Color: red, green, blue,    
Display: Multi-light bar display or a single light dot display
pcb board size: 45 x 14 mm
Display Mode A / P: full brightness linear / single lamp lattice mode switch, the default is a linear model, the board set aside a switch pad, even with soldering pads can be turned into full light linear mode, no welding is the point like single light display
 
 
A variety of high and low voltage battery display range adjustment:
 
1. Lithium battery:
After the completion of a single lithium battery discharge voltage 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 voltage and so on.
 
2. Lead Acid Batteries
6V or 12V lead-acid battery is generally:
6V corresponds to 4.8V (first red light) to 6.75V (tenth lights);
12V corresponds to 9.6V (first red light) to 13.5V (tenth lights);
The module according to the above standard battery discharge range design, can accurately reflect the battery, so that users can readily observe the status of the battery.
 
Adjustment methods:
 
Equipment needed: an adjustable power supply, precision accuracy of the decisions of the panel display. Watches word screwdriver.
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 voltage to the desired voltage display high 4.2v, connect this board, this time there are two results: one is not bright, one is all bright or light a few. This time slow adjustment plate 503 (50k) potentiometer until the LED strip just lit up the whole. Several light does not shine or counterclockwise to adjust, when full light clockwise.
2. the adjustable power supply voltage 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 range.
 
Note:
 
To adjust their voltage, according to the method 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 maximum limit voltage DC 20V, please use anti-static welding or soldering station pull electric heat welding.
 
Package Included:
 
1 x LM3914 Battery Capacity Tester Display Board

More Detailed Photos:

LM3914 Battery Capacity Indicator Module LED Power Level Tester Display Board
LM3914 Battery Capacity Indicator Module LED Power Level Tester Display Board
LM3914 Battery Capacity Indicator Module LED Power Level Tester Display Board
LM3914 Battery Capacity Indicator Module LED Power Level Tester Display Board
LM3914 Battery Capacity Indicator Module LED Power Level Tester Display Board
LM3914 Battery Capacity Indicator Module LED Power Level Tester Display Board
LM3914 Battery Capacity Indicator Module LED Power Level Tester Display Board
LM3914 Battery Capacity Indicator Module LED Power Level Tester Display Board
LM3914 Battery Capacity Indicator Module LED Power Level Tester Display Board

Additional Information

When you order from Alexnld.com, you will receive a confirmation email. Once your order is shipped, you will be emailed the tracking information for your order’s shipment. You can choose your preferred shipping method on the Order Information page during the checkout process. Alexnld.com offers 3 different international shipping methods, Airmail, Airmail registered and Expedited Shipping Service, following are delivery times:

Airmail and Airmail Registered Area Time
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Other countries 10-35 business days
Expedited Shipping 7-15 business days to Worldwide

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Returns

You may return this item within 15 days of delivery for a full refund. We’ll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).

If you need to return an item, please Contact Us with your order number and details about the product you would like to return. We will respond quickly with instructions for how to return items from your order.

 

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Returns Eligibility

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We kindly ask that you return your item to us in new or lightly used condition with no signs of worn out. If the item is in used condition, please send us the photo to confirm its condition before returning it. We reserve the right to refuse any return if there are any signs of worn out or if parts are missing.

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Following a successful inspection of your return we will process a full refund to the credit / debit card or PayPal account which was used to place the original order. 

You should expect to receive your refund within four weeks of returning your package, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 20 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (3 to 5 business days).

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