TP4056 1A Li-Ion Battery Charging Board Micro USB with Current Protection 4.5V-5.5V Input 1A Charging Current for Single-Cell 3.7V Lithium Batteries

Description

The TP4056 1A Li-Ion Battery Charging Board with Micro USB and Current Protection is a tiny, highly reliable module designed specifically for charging single-cell 3.7V lithium-ion (Li-Ion) cells—such as 18650 or 16550 types—that lack their own onboard protection circuit. Based on the mature TP4056 charger IC and DW01 protection IC, this board delivers a stable 1A charge current and automatically cuts off when the charging cycle is finished.

Featuring automated machinery processing and rigorous pre-shipment testing, this module offers exceptional reliability. It includes comprehensive multi-layer safeguards, cutting off the load when battery voltage drops below 2.4V to prevent deep over-discharge, while also protecting against over-voltage and short-circuits. Dual-color LED indicators provide clear real-time status telemetry (Red for active charging, Green for fully charged).

Note: Product images are for reference only; actual appearance or labeling may vary slightly based on manufacturing batches. Batteries are not included.

Key Features

• Micro USB & Pad Power Input: Equipped with a standard Micro USB port, plus dedicated IN+ and IN- solder pads for flexible 4.5V to 5.5V DC power connection.
• Stable 1A Charging Current: Delivers up to 1A of precise charging current tailored for single-cell 3.7V lithium-ion batteries.
• Advanced Protection Circuitry: Built-in safeguards protect against over-current, over-voltage, short-circuits, and low-voltage over-discharge.
• Automatic Cut-Off & Recharge: Automatically terminates charging when full capacity is reached and restarts if cell voltage drops.
• Dual LED Status Telemetry: Integrated LED indicators display Red during active charging and Green when the battery is fully charged.
• Mature IC Architecture: Utilizes the reliable TP4056 and DW01 chip configuration for high charging accuracy and minimal peripheral complexity.
• Compact PCB Footprint: Measures just 25 × 20 mm for effortless integration into custom enclosures and portable electronics.

Benefits

• Extended Cell Lifespan: Precision voltage cutoff and low-voltage lockout protect lithium-ion cells from thermal stress and premature degradation.
• Convenient Universal Power: Allows you to recharge single-cell batteries using standard, accessible Micro USB cables and 5V USB chargers.
• Streamlined Prototyping: Compact board layout eliminates complex wiring, making custom single-cell power setups clean and straightforward.
• High Reliability: Manufactured under fully automated machinery processing and individually tested to ensure consistent performance.
• Safe Operation: Integrated protective mechanisms shield your hardware against electrical overloads and faulty charge states.

Applications

• Single-Cell Power Banks: Custom 3.7V battery charging and power management for portable electronic equipment and maker projects.
• Portable LED Lighting: Reliable charging module for single-cell LED flashlights, work lights, and emergency lamps.
• Test Instruments & Gadgets: Internal power management board for handheld meters, sensors, and portable test instruments.
• Robotics & Hobby Electronics: Embedded charging circuit for small robotic battery assemblies and motorized models.
• Custom Battery Enclosures: Ideal replacement or upgrade charging circuit for unprotected 18650 lithium-ion cell packs.

Package Includes

• 1 x TP4056 1A Li-Ion Battery Charging Board Micro USB with Current Protection
• 1 x Instruction Manual / Quick Guide

Specifications