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5pcs 3.7V 9V 5V 2A Adjustable Step Up 18650 Lithium Battery Charging Discharge I — image 1
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5pcs 3.7V 9V 5V 2A Adjustable Step Up 18650 Lithium Battery Charging Discharge I

5.044 ratings
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Boost & Buck Module for everyday users

The 5pcs 3.7V 9V 5V 2A Adjustable Step Up 18650 Lithium Battery Charging Discharge I by Geekcreit is a mid-range boost & buck module designed for everyday users. Customers praise its great value for money and fast and responsive. 100% of buyers rate it 4★ or above.

✓ great value for money✓ fast and responsive✓ long battery life
₹2,000
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Total: ₹2,000
Buying tip: A well-rounded choice at a fair price. Recommended for most buyers.
Estimated delivery: 4 Aug – 18 Aug
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Ideal For

Electronics projectsArduino / Raspberry Pi buildsPrototyping
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SKU: bg-1322015Category: Boost & Buck Module

About This Product

The 5pcs 3.7V 9V 5V 2A Adjustable Step Up 18650 Lithium Battery Charging Discharge I by Geekcreit is a mid-range boost & buck module designed for everyday users. Customers highlight its great value for money and fast and responsive.

Customer Verdict

100% of buyers rated this product 4 stars or above. The most appreciated qualities are: great value for money, fast and responsive, long battery life.

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.

Feature:
 
Input voltage: 4.5-8V
Output voltage: continuous adjustable 4.3-27V (Counter clockwise to boost voltage)
Charging voltage: 4.2V 
Charging current: up to 1A
Discharge current: the maximum 2A
Output reference maximum current: 5V 1.4A, 9V 0.8A, 12V 0.6A
Quiescent current: about 0.5 mA
Overshoot protection: Yes
Over discharge protection: None (also can be said yes, because 2V cut-off boost but does not block the output, output has 2V)
Deadline boost:: 2V, depending on whether added the additional protection board
Size: 3.3 x 2.3 x 0.9cm
Connecting example, VIN + connect 5V solar panel, BAT + terminal can output 4.2V to charging 3.7V 18650 battery, OUT + side can output an adjustable voltage
Can be used for multimeter, modified lithium battery charging
 
Package includes:
 
5 x Lithium Battery Charging Discharge Integrated Module






















Setup Guide

1
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.
2
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.
3
Install libraries
In Arduino IDE, go to Sketch → Include Library → Manage Libraries and search for the sensor library. Install the recommended version.
4
Upload example sketch
Open File → Examples → [library name] → Basic Example. Upload to your board and open Serial Monitor to view output.
5
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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