Active Buzzer
৳15
Power Bank Control Circuit
৳160
The Power Bank Control Circuit is a compact and essential PCB designed for building or repairing portable power banks. It includes charging, discharging, and over-voltage protection features to ensure safe operation with 18650 lithium batteries. With built-in USB input/output ports, this module makes it easy to charge mobile phones, gadgets, and small electronic devices. Ideal for DIY enthusiasts, students, and technicians in Bangladesh, the control circuit allows users to create customized power banks with stable performance. Its lightweight and cost-effective design makes it a popular choice for both learning projects and practical applications.
This control circuit is designed specifically for Li-ion batteries, supporting the use of a single cell only. It manages charging, discharging, and protection functions to ensure safe operation. Important: Attach only one Li-ion battery—do not connect multiple batteries in parallel.
Features:
1. Overcharge, overdischarge, short circuit protection, does not need to worry about the time of charging
2. Intelligent Output.When equipment is fully charged, it will stop charging automatically to prevent from overcharging
3. Output voltage and current is stable, never to damage user's device
4. Operating temperature range is wide (-20 Clecius—50 Clecius),can provide over tmperature protection
5. Includes LED lamp (long press or double click power key can start)
6. four LED light display battery percentage, non-operating state will be intelligently off
Specification of Power Bank Control Circuit
1.Input Parameter: 5V/1A
2.Input Interface: micro USB
3.Output Parameter: double USB output, 5V / 2A max
4.Conversion efficiency: 90% average
5. Dimensions: 69mm X 26mm (l X b)
