TP4056 1A Lithium Battery Charging Protection Board Module 3.7V 4.2V 18650 Charger Board MICRO/MINI/TYPE-C Interface

TP4056 1A Lithium Battery Charging Protection Board Product Overview

The TP4056 Lithium Battery Charging Protection Board is a high-performance single-cell lithium battery charging module based on the TP4056 linear charging management IC, specifically designed for 3.7V Li-ion batteries (including 18650, 14500, 10440, etc.). The module supports MICRO USB, MINI USB, and TYPE-C interfaces, allowing direct power supply from phone chargers or computer USB ports at 5V input, delivering a stable 1A (1000mA) charging current with a precise charging cut-off voltage of 4.2V±1%. The module integrates multiple protection mechanisms including overcharge protection, over-discharge protection, overcurrent protection, short circuit protection, and reverse polarity protection. LED indicators clearly display charging status (red for charging, blue/green for fully charged). It is widely used in 18650 battery charging, DIY electronics, portable device power supplies, Bluetooth speakers, and smart wearable devices.

TP4056 1A Lithium Battery Charging Protection Board Key Features

TP4056 Classic Charging IC: Utilizes the TP4056 linear charging management IC with Constant Current/Constant Voltage (CC/CV) charging mode and up to 1.5% charging accuracy. Built-in thermal feedback mechanism automatically reduces charging current when temperature is too high.

1A High-Current Fast Charging: Provides 1000mA (1A) charging current for fast charging of 18650 and other high-capacity lithium batteries.

Three Input Interface Options: Available in MICRO USB, MINI USB, and TYPE-C versions, compatible with various USB chargers and computer USB ports.

Multiple Safety Protections: Integrated overcharge protection (cut-off voltage 4.2V±1%), over-discharge protection (cuts off output when battery voltage drops below 2.5V), overcurrent protection (3A protection current), short circuit protection, and reverse polarity protection. DW01 protection IC paired with 8205 dual MOSFETs provides battery protection.

Dual-Color LED Charging Status Indicator: Onboard red/blue (or red/green) dual-color LED indicator – red indicates charging, blue (or green) indicates fully charged. LED flashes when no battery is connected.

Ultra-Compact Size for Easy Integration: Module dimensions approximately 2.2×1.7cm to 2.8×1.7cm, lightweight and easy to integrate into portable devices.

Wide Operating Temperature Range: Supports -10℃ to +85℃ operating temperature range.

TP4056 1A Lithium Battery Charging Protection Board Applications

The TP4056 Lithium Battery Charging Protection Board is widely used in:

18650 Battery Charging: Safe charging for 18650, 14500, 10440, and other cylindrical Li-ion batteries

DIY Electronics & Maker Projects: Lithium battery power solutions for Arduino, ESP8266, and other development boards

Portable Device Power Management: Bluetooth speakers, handheld fans, smart wearables, portable lighting

IoT Sensor Nodes: Lithium battery charging management for low-power IoT devices

DIY Power Banks: Charging management modules for homemade power banks

Battery Maintenance & Testing: Charge/discharge testing for single-cell lithium batteries

TP4056 1A Lithium Battery Charging Protection Board Key Advantage

Cost-Effective Mature Solution: TP4056 is one of the most mature and widely used single-cell lithium battery charging management ICs, featuring simple circuitry, stable performance, and low cost.

1A Fast Charging: Provides 1A charging current – half the charging time compared to standard 500mA chargers.

Three Interface Options: Available in MICRO USB, MINI USB, and TYPE-C versions for compatibility with both new and old devices.

Comprehensive Battery Protection: Integrated overcharge, over-discharge, overcurrent, short circuit, and reverse polarity protection for complete battery and device safety.

Precise Charging Control: Charging cut-off voltage accuracy of ±1%, ensuring batteries reach full 4.2V charge every time.

Intuitive Charging Status Indication: Red/blue dual-color LEDs make charging status immediately visible without extra instruments.

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FAQs:

1 What is the basic function of the TP4056 lithium battery charging module
It is a 1A linear charging management module designed for single cell 3.7V 3.6V or 4.2V lithium batteries featuring constant current and constant voltage charging and battery protection commonly used for charging 18650 batteries.

2 What are the core charging parameters
The input voltage is 5V with a range of 4 point 5V to 5 point 5V. The maximum charging current is 1000 milliamps and the constant voltage cutoff is 4 point 2 volts with a precision of plus or minus 1 percent.

3 What interface versions are available and what are the dimensions
It comes in three interface versions which are Micro USB Mini USB and Type C. Dimensions vary with the mini version without protection being about 15 point 5 by 12 point 5 millimeters the standard version being 22 by 17 millimeters and the integrated protection board being about 28 by 17 millimeters.

4 How does the LED indicator show the charging status
The module has a dual color indicator light. The red light stays on during charging and switches to a solid blue or green light when the battery is fully charged.

5 What is the difference between versions with and without protection
The version with protection integrates an additional lithium battery protection circuit commonly using DW01 and 8205A chips which provides overcharge overdischarge protection at about 2 point 5V and overcurrent protection at about 3A to effectively extend battery life and prevent damage.

6 What types of batteries is this module suitable for
It is mainly suitable for single cell lithium ion and lithium polymer batteries with a nominal voltage of 3 point 7V or 3 point 6V and the most common application is the 18650 cylindrical lithium battery.

7 What activation steps should be noted before use
If connecting a battery for the first time there may be no voltage output at the OUT terminal. In this case simply connect a 5V charging power source to activate the protection circuit. If you disconnect the battery from the B plus and B minus terminals and reconnect it you will also need to activate it by briefly applying charge again.

8 How to wire the input output and battery terminals
Solder the 5V power adapter wires to the IN plus and IN minus terminals connect the lithium battery positive to B plus and negative to B minus and connect the load to OUT plus and OUT minus. Reverse polarity on the input or battery terminals is strictly prohibited.

9 Why might the module fail to charge normally from an input source
When using a phone charger or adapter as the input source you must ensure the charger can provide a stable output current of 1 ampere or higher. If the current capacity is insufficient the module may trigger overcurrent protection or fail to charge properly.

10 What load considerations should be made during full load charging
 It is recommended to disconnect the load from the OUT terminals during charging to prevent simultaneous charging and discharging which could cause overcharging or unstable charging current. Also ensure the charger provides a stable 5V input power supply.