Capacitors store voltage in electronic circuits. Electrolytic capacitors fail from current discharge or electrolyte depletion. Non-electrolytic capacitors typically fail from charge leakage. Capacitance is measured in farads (F) or microfarads (µ)
Low-cost 12V to 220V pure sine wave inverter built from EGS002 module. Project cost around $30 using locally sourced parts. Can handle up to 1kW transformer power
Circuit designed for 7.4V lithium battery pack using two 18650 cells. Features CC and CV charging modes for faster charging. Can be modified for lower or higher battery packs
LM358 comparator with preset for automatic cut-off. Green LED indicates charging, red LED shows full charge. Circuit works with USB port or 5V regulated sources. Current from USB ports typically ranges 200-500 mA
Store offers electronics and household appliances at affordable prices. Products include computers, TVs, refrigerators, smartphones, and scooters. Wide selection from brands like Xiaomi, Samsung, Tefal, Asus, Philips
Launched with 20-60GB drives in US and Japan, 40-80GB in Europe. All models included Wi-Fi, USB ports, controllers, and cables. Original models lacked PS2 backward compatibility and Super Audio CD player. 20GB model lacked Wi-Fi and flash card readers