Is there an on-and-off switch?

yesThere is one buttonwhen pressed once it shows capacityin percentageA second click shows a voltAnother click off

I can't change settings... How to change settings? Do I disconnect and press hold the button and released it to go to settings mode?

As Rone says, if you power up and then push buttons, nothing happens. Unplug it, hold down the button on the back and plug in again. You will be in settings mode and can change parameters according to instructions. When choosing the number of cells, the button on the back decreases the count and the one on the front increases it. Choose the value you want, then unplug and replug. The settings will be remembered. takes a little fiddling but remember to power cycle to get into settings mode while holding down the button.

what is mean by lithium iron 4 seriez

LiFePo = Lithium Ferro Phosphate aka Lithium Iron Phosphate batteryI means it can be set to measure 4 cell LiFePo battery and give an accurate voltage reading.1 cell LiFePo battery nominal voltage is 3.2V2 cell LiFePo battery nominal voltage is 6.4V total4 cell LiFePo battery nominal voltage is 12.8V totalLiPo = Lithium Polymer battery1 cell LiPo battery nominal voltage is 3.7V2 cell LiPo battery nominal voltage is 7.4V total 4 cell LiPo battery nominal voltage is 14.8V total ... see more see less

Is it water resistant?

I haven't had it anywhere near water but doubt it.

is this meter suitable for agm batteries ?

it is not suitable for agm batteries

Can this be used with 12volt Gel deep cycle battery?

It works with my Optimus bluetop sealed deep cycle. It should work for you.

Geekcreit® 12V/24V/36V/48V 8-70V LCD Acid Lead Lithium Battery Capacity Indicator Digital Voltmeter — image 1

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Geekcreit® 12V/24V/36V/48V 8-70V LCD Acid Lead Lithium Battery Capacity Indicator Digital Voltmeter

Name: Geekcreit® 12V/24V/36V/48V 8-70V LCD Acid Lead Lithium Battery Capacity Indicator Digital Voltmeter
Brand: Geekcreit
SKU: bg-1209820
Price: 2000 INR
Availability: InStock
Rating: 5.0 (1169 reviews)

5.01,169 ratings

AI Summary

Boost & Buck Module for everyday users

The Geekcreit® 12V/24V/36V/48V 8-70V LCD Acid Lead Lithium Battery Capacity Indicator Digital Voltmeter by Geekcreit is a mid-range boost & buck module designed for everyday users. Customers praise its easy to set up and use and excellent build quality. 100% of buyers rate it 4★ or above.

✓ easy to set up and use✓ excellent build quality✓ great value for money✓ fast and responsive

₹2,000

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Electronics projectsArduino / Raspberry Pi buildsPrototyping

SKU: bg-1209820Category: Boost & Buck Module

About This Product

The Geekcreit® 12V/24V/36V/48V 8-70V LCD Acid Lead Lithium Battery Capacity Indicator Digital Voltmeter by Geekcreit is a mid-range boost & buck module designed for everyday users. Customers highlight its easy to set up and use and excellent build quality.

Customer Verdict

100% of buyers rated this product 4 stars or above. The most appreciated qualities are: easy to set up and use, excellent build quality, great value for money, fast and responsive.

Why Buy from Pricio?

Pricio sources this product directly, cutting out multiple middlemen. Every order includes free shipping, a 15-day return policy, and secure payment via Razorpay.

Display: Power, Voltage, Close, the key for cycle.

Voltage range: 8-70V, products will display based on the voltage value, voltage fluctuations, power meter will be follow as the voltage fluctuation! (Comes with reverse polarity protection, can be guarantee use effectively ) The product is suitable for lead-acid 12V, 24V, 36V, 48V (can be changes via key, specific please see setup instructions as below) The product is suitable for 3.7V lithium series multi-platform, 3 string, 4 string, 5 string, 6 string, 7 string and 8 string 9 string 10 string 11 string 12 string 13 string 14 string 15 string (can be changes via key, detail information please see as below) Cable Length: 30cm

Battery specifications:

P=lead acid, L=lithium battery, F=lithium iron phosphate battery

Single string battery nominal voltage:

Lead acid = 12V, lithium battery = 3.7V, lithium iron phosphate = 3.2V

Setup steps:

Press and hold the setting button to power the battery, enter the setting interface

Short press the setting button to select the battery specification (P=lead acid L=lithium battery F=lithium iron phosphate battery)

Short press the function key to select the number of battery strings (the setting key is increased, the function key is reduced)

Long press the function key to set the S mode, the setting key selects the corresponding mode, and the function key is turned on or off.

After setting it, you can re-power it.

S1: %/V 2 seconds in turn display

S2: 10 second delay off

S3: Turn on the backlight

S4: Turn on LOGO

S5: Battery curve selection

Instructions:
1. Press and hold switch on the product, power on, automatically select the interface ( please follow as the code corresponds blow) 2. Select your battery type after corresponding, for example 3 series lithium battery, you need to enter the selection screen, press the key point to L3 interface, then off, re-energized, choose success, such as the need to set 12V lead-acid batteries, the key point press to P12V interface, power, re-energized, both choose success 3. Instruments can be used if you Select successful . . Meter shows the power interface, tap switch, switch to voltage interface, click the switch, turn off the meter. cycle shown as the code corresponds
Code: Suitable for
L3: 3 string lithium L4: 4 string lithium L5: 5 string lithium L6: 6 string lithium L7: 7 string lithium L8: 8 string lithium L9: 9 string lithium L10: 10 string lithium L11: 11 string lithium L12: 12 string lithium L13: 13 string lithium L14: 14 string lithium P12V: 12V lead-acid P24V: 24V lead-acid P36V: 36V lead-acid P48V: 48V lead-acid
Special Function Setting (requires electric iron, you must power off setting, electric iron must be grounded) A point connection, the backlight will be automatically shut down if delay10 seconds , the voltage fluctuation will automatic wake-up exceeds 0.3V / 0.5 seconds. B point connection, lithium choose 3-4.1V curve (lithium professionals)
Package includes:
1/3/5/10 (optional) x Battery Capacity with cable

Geekcreit® 12V/24V/36V/48V 8-70V LCD Acid Lead Lithium Battery Capacity Indicator Digital Voltmeter

Product Safety Information

Setup Guide

Identify the pins

Locate VCC (power), GND (ground), and data pins (SDA/SCL for I2C, MOSI/MISO for SPI, or TX/RX for UART). Refer to the pinout diagram on the product page.

Wire to your microcontroller

Connect VCC to 3.3V or 5V (check the module spec), GND to GND, and data pins to the appropriate GPIO pins on your Arduino or Raspberry Pi.

Install libraries

In Arduino IDE, go to Sketch → Include Library → Manage Libraries and search for the sensor library. Install the recommended version.

Upload example sketch

Open File → Examples → [library name] → Basic Example. Upload to your board and open Serial Monitor to view output.

Calibrate if needed

Some sensors (temperature, humidity, distance) may need a short warm-up period or calibration. Run the calibration sketch if provided.

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Geekcreit® 12V/24V/36V/48V 8-70V LCD Acid Lead Lithium Battery Capacity Indicator Digital Voltmeter

About This Product

Customer Verdict

Why Buy from Pricio?

Setup Guide

Cheaper Alternatives

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