SPECIFICATIONS

2-in-1 Charge Discharge Module 5V 2A Type-C Boost Converter for 18650 Li-ion Battery – Protection Board Power Module DIY Charger (Pre-soldered / Not Soldered USB)

Key Features & Benefits

🔋 All-in-One – Integrated charging (TP4056 class) + 5V boost output. No extra modules needed.

⚡ 5V 2A Output – Powers Arduino, ESP32, phones, LED strips, small motors.

🔌 Type-C Input – Charge with any 5V phone charger. Red LED = charging, blue = full.

🛡️ Full Protection – Over-charge, over-discharge, over-current, short-circuit.

🧩 Two Versions – ① Type-C pre-soldered (plug & play); ② Type-C not soldered (DIY solder pad, includes free Type-C connector).

📏 Compact – 26×17×3 mm, fits into portable projects.

Product Description

Turn a single 18650 battery into a Type-C rechargeable 5V power bank with this 2-in-1 module. It combines a lithium battery charger (4.2V cutoff) and a 5V boost converter. Just connect a battery to BAT+/BAT-, plug 5V into Type-C to charge, and get 5V output from OUT+/OUT- continuously. Up to 2A output – enough for most dev boards and USB gadgets. We offer pre-soldered Type-C (ready to use) and Type-C not soldered (with free connector, for custom positioning or batch SMT).

⚡ Quick Start Guide & Important Tips

🔹 What It Does & What You Need

✅ Does: Charges a single 4.2V Li-ion battery from 5V Type-C, boosts battery voltage to 5V output.

❌ Does NOT: Charge multi-cell batteries (1S only), output >2A continuous (1.5A recommended), support LiFePO4.

🔧 You need: One 18650/14500/10440 battery, 5V/2A charger with Type-C cable. For not-soldered version, soldering iron.

Wiring (Pre-soldered Version)

1.Battery: BAT+ → battery positive, BAT- → negative.

2.Output: OUT+ → load positive, OUT- → negative.

3.Charge: Plug Type-C into 5V charger. Red LED = charging, blue = full.

⚠️ Reverse polarity on BAT+/BAT- will destroy the chip. Double-check.

🔹 Not-Soldered Version Instructions

A free Type-C female connector is included. Solder it to the marked pads on the board.

Minimum required: solder VBUS (5V) and GND pads. CC pins are optional for basic charging.

Watch polarity: align connector’s 5V and GND to board’s markings.

Output Current Limits

🔹 Common Questions

❓ Module gets warm while charging?

Normal (≈60°C). If too hot (>80°C), check input voltage (<5.5V) and battery condition.

❓ No 5V output?

Check battery polarity and voltage (>2.8V). Add a small load (10mA+) if module entered sleep.

❓ Can I get the not-soldered version pre-soldered?

No. Please choose the "Pre-soldered" version for that.

❓ Use with 3.2V LiFePO4?

No. Cutoff voltage is 4.2V, will overcharge LiFePO4.

❓ LED not working?

If battery is full, red off, blue on. No battery? LED may flicker. Check connections.

Specifications