1A Lithium Battery Charging Module - With Battery Protection Expand

1A Lithium Battery Charging Module with Protection



This 1A Lithium Battery Charging Module features battery protection and power pass through – The ideal power supply choice for small electronics projects.

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The 1A Lithium Battery Charging Module with Protection is a clever little Electronics Module that is capable of connecting up to a 5V DC supply and charging single-cell Lithium Batteries. It uses either a Mini-USB port or dedicated terminals to connect up to a supply, and then charges the connected battery to a current of 1A and voltage of around 4.2V, with the option for power pass through as well in case you want to power your projects directly from the input supply.

In addition to being a Battery Charger, this module can also be fitted as a direct power supply. When plugged into an external power source, the module offers pass through power to provide sufficient voltage and current even while charging the battery. This ensures that you can power the unit when an external power source is available, and then rely on the battery when you need to take your project on the move.

Technical Specifications:

  • Input Voltage

– 4.5V to 5.5V DC

  • Power Connection

– Mini-USB / Dedicated Terminals

  • Charge Current

– 1A (Adjustable)

  • Charging Capacity

– 4.2V

  • Charge Accuracy

– 1.5%

  • Charging Status Indicator

– Red/Green LED

  • Battery Compatibility

– Li-Ion / Li-Po (Single Cell)


Charge Current Selection:

RPROG Resistor Value (k Ohm)


  • 30

– 50

  • 20

– 70

  • 10

– 130

  • 5

– 250

  • 4

– 300

  • 3

– 400

  • 2

– 580

  • 1.66

– 690

  • 1.5

– 780

  • 1.33

– 900

  • 1.2

– 1000


Typical Applications for the 1A Lithium Battery Charging Module:

This 1A Lithium Battery Charging Module is a great solution if you want to add battery-power capabilities to an Electronics project. It offers the option of either utilising the battery as a power source, or charging the battery when the module is plugged into a 5V supply. This means that you can integrate it into a project so as to utilise inexpensive and replaceable Li-Po and Li-Ion Batteries rather than a large battery unit or wall-connection PSU. This enables you to take your projects out into the world and then charge them at home when they’re not in use, even offering the option to replace the battery while on-the-go to keep your project powered when you don’t have the opportunity to recharge.

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