DADAKEWIN 5V 2A 2.1A Power Bank Charger Module Charging Circuit Board Step Up Boost Power Supply Module USB Output 1A Input (Color : Single USB)

The TP5400 chip combines charge controller and voltage regulator in the smallest space.

3 USB CHARGING PORT-- Power bank charger module is designed with 3 USB charging port, can 3 mobile phones at the same time

Supports charging while discharging, efficiency up to 93%.

Widely Compatible The module supports 4.2V 4.35V 4.4V 4.5V battery type, with the current up to 5A, the efficiency is up to 95%, support for JEITA specification and temperature control.

Intelligent Charging Stages Our micro type-c usb mobile power bank employs a three-stage charging process trickle, constant current, and constant voltage. Initially, it charges at 300mA in trickle mode for batteries under 3V. As the voltage surpasses 3V, it transitions to constant current mode, delivering up to 21W. In the final stage, it shifts to constant voltage mode, tapering the current to ensure a full and Saf-e charge.

Product brief This module is a portable backup power supply with an input that matches the 5.0V adapter to charge the internal battery. Use built-in battery for portable device to provide 5.0V 3.0A USB2.0 supply output for external devices.

Can connect one li battery or multiple li batteries in parallel. But the following conditions must be met capacity 20W mAh, 3-4.2V voltage.

2 CONNECTION METHODS The power supply module is possible to connect only one lithium battery or multiple lithium batteries in parallel. The capacity of connected battery is no more than 200,000 mAh, As long as the battery with a voltage of 3.0-4.2V can be used. DIY usb power bank board, li-ion charging board, dual usb charging circuit board.

5V POWER BANK 5V Boost Step Up Power Module Battery Charging Protection Board for Power Bank 1.Input Voltage 3.7V 5.5V 2.Charging Current 1A(max) 3.Output Current 1A(max) 4.Output voltage 5V 5.BAT Discharging Stop Voltage 2.9V 6.Discharging Efficiency 85%(input 3.7V output 5V 1A)

The TP5400 chip combines charge controller and voltage regulator in the smallest space.

Mini Size Our portable back up power supply owns small body and stable performance, and this stable battery charger board is an ideal choice for you, which is also a good charging board for DIY

Charging indication The power bank module is equipped with an LCD screen that can display the word "IN" when charging.

and hold the button after the standby power supply of the LED digital display.

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If you 't need to charge and discharge at the same time, you can also output to two fast charging devices at the same time

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3X Fast Recharge Match the 20W USB C charger (not included) to juice up the power bank in 5 hrs or less, greatly shortening its recharging time. Intelligent failure-proof protection protects your phone against overcharge, over-discharge, overheating and more to keep your devices safe.

Real-time Battery Status Display Keep track of the battery level in real-time while discharging. The LED digital screen of this mini type-c power bank module shows the current power level and retains the display for approximately 30 seconds (double-click the button to restore).

Unleash portability with 22.5W Power Banks, featuring 5port with Two direction fast charging capabilities to keep your devices powereds.