# Multifunctional TP4056 2-in-1 Lithium Battery Charger Module
This practical charging module is designed for 18650 Li-ion battery charging with reliable overcurrent protection, a great accessory for DIY power bank making, small electronic device modification and electronic experiment projects.
## Core Advantages
1. Combines charging and battery discharge protection functions in one board, supports charging and discharging at the same time to meet your diverse use demands.
2. The input port adopts a TYPE-C USB female socket, which is compatible with mobile phone chargers as input power to charge lithium batteries directly.
3. Additional input voltage wiring solder points are retained on the board, making your DIY modification more convenient.
## Usage Instructions
Kindly Reminder: If there is no voltage output between OUT+ and OUT- when you first connect the battery, or after you reconnect the battery following a B+ and B- short circuit, you just need to charge it with 5V power for a short time to activate the protection circuit. Please use a mobile phone charger with 1A or higher output as input, otherwise the charging may not work normally.
### Wiring Steps
1. Connect 5V power to the TYPE-C USB female connector or its adjacent + and - input pads.
2. Link B+ to the positive pole of your lithium battery, and B- to the negative pole.
3. Connect OUT+ and OUT- to your load (e.g. positive and negative poles of a mobile boost converter or other electronic loads).
After finishing the wiring, plug the charger into the USB port: red LED light means charging is ongoing, blue LED light means charging is completed.
## Product Specifications
- Material: Plastic
- Optional Interface: Type-C / Micro USB
- Board Dimension: 2.8*1.7CM
- Input Voltage: 5V
- Charging Cut-off Voltage: 4.2V ±1%
- Max Charging Current: 1000mA
- Over-Discharge Protection Voltage: 2.5V
- Overcurrent Protection Current: 3A
- Suitable Scenarios: 18650 lithium battery charging, DIY power bank development, small electronic device modification, electronic experiment projects
## Package Included
5 x Charging board modules
## Warm Notes
1. Images are for reference only, please check the description for exact size information.
2. Slight measurement error (1-3mm) is normal due to manual measurement, thanks for your kind understanding.
3. Actual color may have a little difference from the pictures because of different monitor settings.
The merchant warrants that their products comply with all applicable laws, and are offered only if they comply with Joom's policies and EU Product Safety and Compliance laws.
No-delivery refund
