Specifications:
Material: Other
Packaging: 1PC
Size: As picture
Features:
Working temperature - 40~80 ℃
Input voltage range 4.2V~6.5V
Output voltage 4.2V-28V adjustable
Maximum power 5W
0V activation, 2.9V trickle charging
Up to 1A programmable linear charging current
For single 3.7V lithium battery, fully charged with 4.2V
Constant current/constant voltage charging, with over-temperature protection
Soft start limit surge current, with battery reverse connection protection
Low power standby, extended battery life
Dual output of charging status, no battery and fault status display
Description of charging indicator:
The module can roughly judge the working status through two LEDs, CHRG is red, STDBY is blue.
The red light of battery charging status is bright, the blue light is not bright, the blue light is full, and the red light is slightly bright.
If there is a boost output, it will be different according to the output power. It is possible that the red light will always be on during charging. When the load is not connected, the blue light will be on, and the red light will be on slightly.
How to connect the battery:
If your battery is equipped with a protective plate, you can choose products without discharge protection. After connecting B+and B -, the battery must be short-circuited to T point before charging and discharging.
If your battery is not equipped with a protective plate, choose the product with discharge protection. This is very important because over discharge of the battery is likely to cause the battery to be scrapped. Most competitive products of the same kind are not equipped with discharge protection. After the battery is connected with B+and B -, the T point cannot be short-circuited, otherwise the discharge protection will fail.
After connecting the wire, you can use a screwdriver to adjust the output voltage you want.
The battery is 3.7V lithium battery with a full charge voltage of 4.2V. The battery type can be 18650, polymer and other batteries.
Instructions for use:
The product is linear charging, and the heating is normal, so it can be used safely
The batteries can only be connected in parallel, not in series.
The charging current should be 0.37C of the battery capacity, which is 0.37 times of the capacity. For example, the charging current of a 1000mAH battery is 400.
The charging connecting wire should not be too thin or too long. This connection has a high resistance. If it is too thin, the battery voltage will drop after flushing.
It is better to have good contact with the battery. Otherwise, the battery voltage will drop after flushing.
It is normal to generate heat when the current is high during boost operation. The higher the current is, the hotter it is. This is a normal phenomenon. The chip is equipped with overheating protection, which can be used safely.
This module has both the function of boosting and discharging, and can realize the boosting of 3.7V to 9V and 5V, meeting various voltage requirements of users.
This module has a working current of 2A, which can provide efficient and stable power output and ensure the normal operation of the equipment.
The product is small in design, easy to install and use, and suitable for various occasions and equipment.
Note:
Due to manual measurement, please allow an error of 1-3mm. Please ensure that you do not mind before bidding.
Due to the differences between different monitors, the images may not reflect the actual color of the item. Please refer to the actual image received. Thank you very much.