Do you know how many times a power bank can charges phone / tablet? Let see formula below:
Calculation of the conversion rate power bank:
Formula: power bank capacity X 0.8 (about 20% loss) / mobile phone battery capacity = charging times (approximately)
EXAMPLE: Power Bank capacity 11200mah, Mobile phone battery capacity 3100mAh
Formula: 11200mAh X 0.8 / 3100mAh = around 2.89 times
Arduino is a physical computing platform based on a simple I/O board and a development environment that implements the Processing/Wiring l...
Having Space Constraint At Your QTH To Put Up An Antenna For HF Band?. Then Try Constructing This Magnetic Loop Antenna. D...