Schematic Power Amplifier and Layout

InPowered battery charger circuit diagram schematic 6V-12V

using NE555, LM7812, 2SA671, 1N4002, BC549

Automotive battery charger circuit diagram schematic

auto battery charger circuit

On a lithium-ion cell, 3.8V/cell indicates a state-of-charge of about 50%. It must be noted that utilizing voltage as a fuel gauge function is inaccurate because cells made by different manufacturers produce a slightly different voltage profile. This is due to the electrochemistry of the electrodes and electrolyte. Temperature also affects the voltage. The higher the temperature, the lower the voltage will be Auto