LED Voltmeter with battery status indicator review and manual

If you need a voltmeter to the battery indicator, this product is really good piece.In the following lines you read the pros and cons and how to engage manual and programming this device.

Here are the pros and cons of LED Voltmeter with battery status indicator:

Here is pros

Distinct color LED display
You can adjust values in percent or in volts
Can you set the battery type and number of cells (types supported are12V Lead-acid battery, 3.7V Lithium polymer battery ,3.2V Lithium iron phosphate battery ,1.2V NiMH battery)
Voltmeter is accurate but allows graduated in 0.1V increments (more below in the instructions)
The price per piece is about 5-6 usd, it’s a good price

Here is cons

It may be necessary to improve the control button to set the voltmeter on the back of PCB
cannot measure single lithium cell his turn on voltage is 6V

Voltmeter with indicator

6.00

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My short assessment of the voltmeter:

It’s really a good thing, the values displayed are nice Can you be completely programmed with voltmeter indicator is actually a good thing for cars, motorcycles, chargers, RC models, all electrical equipment with battery, for example, electrobikes, etc. Just connect the plus and minus voltmeter immediately turns off and shows the value of voltage.

Technical parameters of LED Voltmeter with battery status indicator:

100% brand new and high quality
Work current: 5-15mA (with backlight), Wide Voltage: 6-120v
Energy resolution:1%
Voltmeter accuracy :1%
Using temperature range: -20- 70
Operating humidity:10-80%
Black wire connect negative electrode
Red wire connect positive
External dimension:48×29×18 mm
Hole Dimensions :45.5×26.5 mm
With a shell, easy to use stand-alone or embedded in the panel on the product.
Display Mode: Battery +voltage, Battery +Percentage

How set this voltmeter ? here is manual:

Voltmeter can plug plus and minus to battery od DC power source. Plus pole is red and negative pole is black .

Here is schematic:

On the back of the voltmeter is PCB with components that are placed button that will use the following settings:

Pay attention to a different version of the voltmeter no button to set or “missing parts of electronics” equipment only suitable for the measurement of 12V lead acid batteries

This tester for Lithium and lead-acid batteries Universal ,the factory default setting for 12V lead-acid battery power and voltage cycle display,If you need to test other specifications can be re-set by yourself.

The back of the board with a white high key, press the button for 3 seconds to display 1-U, release the button, press one second display 2-b, release the button, press one second to display 3-c, release the button, press one second to display 4-d;
Display 1-U pressed the button for 3 seconds will display fine tuning voltage, then release the button and then press and hold, voltage trimming up, stop by then long press down tuning, can be repeatedly adjusted, until the screen flashes automatically save and exit;
When displaying 2-b can be adjusted in different cell types, 12.0V represents a single section of 12V lead-acid battery, 3.7V to 3.7V on behalf of a single lithium battery, 3.2V to 3.2V single representative of lithium iron phosphate, 1.2V single representative Festival of 1.2V NiMH batteries;
When displaying 3-c, you can adjust the number of battery section, the number of different types of batteries can be adjusted as follows: Section 12V lead-acid batteries 1-8, 3.7V lithium battery section 2-28, 3.2V lithium-ion battery section 3-32, 1.2 section V NiMH battery 10-70.
When displaying the 4-d, you can adjust the display mode, V is the voltage mode,% percentage mode, V% voltage and percentage cycle.

New version complete manual guide:

This year has a new version of the label H27(CUP) V1.4 PCB. Compared to the previous version, it has 14 functions, it supports high voltage and low voltage alarm.Here is manual how to program this voltmeter with the battery indicator

Press the T1 button for a 2 seconds can access to menu P1-P2.
Quick touch button choose value
Long touch button for confirm value or fast increase or decrease value (voltage or percentage)

P1- choose type of cells battery 12V – is clasic lead acid,3,7V li-ion or li-pol,3.2V lifepo4, 2V – nicd and simmilar, 1.2V nimh or nicd

P2- number of cells – this voltmeter with indicator can measures from 7v to 100V divide 100v by nominal voltage of type cells and get you max measured number cells .