J5019 DC TO DC Step-Up 1A Buck Boost Module for 18650 TP4056 3.7V to 4.3-27V

Product Description: J5019 DC-DC Step-Up 1A Buck Boost Module for 18650 TP4056 3.7V to 4.3-27V
The J5019 is a versatile, compact module that combines a lithium-ion battery charger with a DC-DC step-up boost converter. It is designed to charge 3.7V Li-ion batteries (such as 18650 cells) and can step up the output voltage from 4.5V to 24V (or up to 27V in some configurations) with a maximum output current of 1A. The module supports input voltages from 4V to 8V and includes a micro USB port for convenient charging from a USB adapter.

Features:

• Input Voltage: 4V to 8V DC (or 5V via USB).
• Output Voltage: Continuously adjustable from 4.3V to 27V.
• Charging Voltage: 4.2V for Li-ion batteries.
• Charging Current: Up to 1A.
• Discharging Current: Up to 2A (though this is not a standard feature of the J5019 module itself).
• Dimensions: Typically around 3.3 x 2.3 cm.
• Weight: Approximately 6 grams.
• Protection Features: Overcharge protection, though no built-in over-discharge protection.
• Operating Temperature Range: -20°C to 85°C.

Application:
This module is commonly used in portable electronics, DIY projects, and small robotics where a compact, adjustable power supply is needed. It is suitable for applications requiring a stable output voltage from a variable input source.

Package Included:
1 x J5019 DC-DC Step-Up 1A Buck Boost Module
Please note that the product image is for illustrative purposes only. The actual product may vary slightly in appearance.!