J
john
I have a car battery charger with 3 settings: 2amp, 10 amp, and 50 amp
engine start. My issue is the 50 amp engine start mode.
When in this mode, the built-in ampmeter goes violently out of scale (full
scale is 12amp) before I even crank the engine.
This means the device has open circuit voltage of > 12V and is charging the
batter with more than 12 amps (not sure exactly how many amps).
I worry this large charging current may damage the car battery or cause an
explosion.
Wouldn't a better design be to provide 11.9V at 50Amps, so that when the
engine is not cranking, the battery will not be subject to a large charging
current, and when the engine is cranked, the battery voltage would drop a
few volts (due to enormous current draw), and the 11.9V at 50Amps will go
towards starting the engine.
Does anyone know if such charger exists?
engine start. My issue is the 50 amp engine start mode.
When in this mode, the built-in ampmeter goes violently out of scale (full
scale is 12amp) before I even crank the engine.
This means the device has open circuit voltage of > 12V and is charging the
batter with more than 12 amps (not sure exactly how many amps).
I worry this large charging current may damage the car battery or cause an
explosion.
Wouldn't a better design be to provide 11.9V at 50Amps, so that when the
engine is not cranking, the battery will not be subject to a large charging
current, and when the engine is cranked, the battery voltage would drop a
few volts (due to enormous current draw), and the 11.9V at 50Amps will go
towards starting the engine.
Does anyone know if such charger exists?