Description
A 3.7V to 5V 2A 18650 step-up battery module serves as a power bank, stepping up the voltage from a 3.7V 18650 lithium-ion battery to 5V to power devices needing a stable 5V output at up to 2A. Key features include an integrated lithium battery charging circuit, a boost converter for voltage step-up, built-in protection against overcharge, overdischarge, and short-circuits, a standard USB output port, and often a micro USB input for charging the 18650 battery itself
Features
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Voltage Conversion:
Stepper-up the 3.7V from an 18650 battery to a stable 5V output, suitable for most mobile devices.
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High Output Current:
Capable of delivering up to 2A, allowing for faster charging of connected devices.
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Integrated Charger:
Includes a charging circuit, often using a micro USB or Type-C input, to recharge the 18650 battery.
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Integrated Protection:
Provides essential safety features like overcharge, over-discharge, and short-circuit protection for the 18650 battery.
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DIY Power Bank Solution:
Allows users to build a custom mobile power bank for their 18650 batteries.
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LED Indicators:
Many modules feature LEDs to display the charging status and overall power status of the connected battery.
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18650 Battery Compatibility:
Designed to work with single-cell 3.7V 18650 lithium-ion batteries.
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Compact Design:
Features a small, lightweight PCB that is easy to incorporate into DIY projects or enclosures.