HKD TP4056 Micro USB 5V 1A 18650 Li-Ion/Li-Poly Battery Charger Module

The HKD TP4056 Lithium Battery Charger Module is a compact and reliable charging solution for single-cell 3.7V lithium-ion or lithium-polymer batteries such as the 18650. Featuring a Micro USB input port, it allows convenient charging using any standard phone charger or USB cable.

Equipped with the TP4056 charging IC and DW01 protection IC, the module provides over-charge, over-discharge, over-current, and short-circuit protection. It ensures safe battery charging with a 1A adjustable current and automatically stops charging once the battery is full.

This versatile module is perfect for DIY electronics, battery-powered projects, and rechargeable applications where compact size and built-in safety are important.

Features:

Compact Li-Ion/Li-Poly charger with Micro USB input

Supports single-cell 3.7V batteries (e.g., 18650)

TP4056 IC with DW01 protection for safe charging

Protection features: over-charge, over-discharge, over-current, short-circuit

LED indicators: Red (charging), Blue/Green (fully charged)

Adjustable charging current via RPROG resistor

Simple wiring: IN+/- for input, B+/- for battery, OUT+/- for load

Specifications:

Input Voltage: 4.5V - 5.5V DC

Full Charge Voltage: 4.2V

Charging Current: 1A (adjustable)

Charge Accuracy: 1.5%

Over-discharge Protection: 2.5V cutoff

Over-current Protection: 3A

Interface: Micro USB + solder pads (IN+/IN-)

Dimensions: 28 × 17 × 1.1 mm

Weight: 1.7 g

Operating Temperature: -10 C to +85 C

What's in the box
1 x HKD TP4056 Micro USB 5V 1A 18650 Li-Ion/Li-Poly Battery Charger Module