Charge Safely & Smartly — TP4056 1A Battery Charger Module with Protection - AA121

Description:

Power your DIY projects and battery-powered devices with ease using the TP4056 1A LiPo Battery Charger Module. Designed for single-cell 3.7V Li-ion or LiPo batteries, this compact module delivers safe, efficient, and fast charging at up to 1 Amp via a Micro USB input.

Built around the TP4056 lithium battery charging IC, this module features smart charging technology using the CC/CV (Constant Current/Constant Voltage) method. The built-in LED indicators provide real-time charging status – red for charging and blue for fully charged.

The module also includes optional protection circuitry (depending on version) that guards against overcharge, over-discharge, and short circuits, making it ideal for embedded electronics, IoT, power banks, wearables, and other low-power applications.

Specifications:

• Charging IC: TP4056
  
• Input Voltage: 4.5V – 5.5V (Recommended 5V via Micro USB)
  
• Charging Current:1A max (adjustable via onboard resistor)
• Battery Type: Single cell 3.7V Li-ion / LiPo battery
• Charging Method: CC/CV (Constant Current / Constant Voltage)
• Charge Voltage: 4.2V ± 1%
• Input Interface: Micro USB (female) & solder pads for 5V IN
• Protection: IC DW01 + FS8205A (in protection version only)
• Overcharge Protection: 4.28V ± 1% (protection version)
• Over-discharge: Protection 2.5V ± 1% (protection version)
• Overcurrent Protection: 3A (typical, protection version)
• LED Indicators: Red: Charging, Blue: Full charge
• Operating Temperature: 10°C to +85°C
• PCB Dimensions: Approx. 25mm x 19mm x 3mm (L x W x H)
• Mounting Type: SMD/Through-hole (via solder pads)
• Weight: 2g

Features:

• ⚡ 1A Fast Charging: Quick and reliable charging for 3.7V Li-ion/LiPo cells
• 🔌 Micro USB Input: Easy connectivity with standard USB cables
• 🔋 Smart Charging IC (TP4056): Automatic charging control using CC/CV algorithm
• 🛡️ Optional Built-in Protection: Overcharge, over-discharge, and short-circuit safety (protection version only)
• 🔴🔵 LED Indicators: Red = Charging, Blue = Fully Charged
• 🧰 Compact Design: Fits easily into DIY and portable electronic projects
• ♻️ Auto Recharge: Automatically resumes charging when battery voltage drops

Applications:

• DIY electronics projects
• Power banks
• IoT devices
• Bluetooth/wireless gadgets
• Wearable tech
• Solar battery charging systems

📌 Note:

Ensure you're using a compatible single-cell 3.7V Li-ion/LiPo battery. Avoid using without protection if safety is a concern. For best results, use a 5V USB power supply rated at 1A or higher.

How to Use:

• Connect a micro USB cable for power, or a 5V DC to pads marked IN+ and IN- on the left-hand side of the module
• Connect the cell to the charge to the B+/B- pads on the right-hand side of the module.
• A load (something for the battery to power) can be connected to the OUT+/OUT- pads on the right-hand side
• Important! Disconnect the load when charging
• The red LED indicates charging in progress, green LED indicates charging has finished.
• Never charge your battery at a rate greater than 1C.

Package Included:

1 x TP4056 1A LiPo Battery Charger Module