Seriously another alternator question.
Yes, basically.
When a low battery is hooked to a charger, controlling the voltage provides a level of control over the charging rate.
Low battery (75% charged) provided power at 13.4 Volts. rate of charge 3.3 amps
Same battery now charged up provide power at 13.3 V. Rate of charge Zero amps
----------------------------------------------------------------------------------------------------------------------------------------------
A low, but not dead, battery provided power at 14.2 Volts. Charge rate about 30 amps.
Same battery, with the charger turned down so the supply voltage was 13.3 V. Result is battery only draws 8 to 10 amps.
The regulator temperature can make a difference on the system voltage and therefore the draw of the battery and other items.
However the biggest reason for high charging current right after start is the battery is low.
Yes, basically.
When a low battery is hooked to a charger, controlling the voltage provides a level of control over the charging rate.
Low battery (75% charged) provided power at 13.4 Volts. rate of charge 3.3 amps
Same battery now charged up provide power at 13.3 V. Rate of charge Zero amps
----------------------------------------------------------------------------------------------------------------------------------------------
A low, but not dead, battery provided power at 14.2 Volts. Charge rate about 30 amps.
Same battery, with the charger turned down so the supply voltage was 13.3 V. Result is battery only draws 8 to 10 amps.
The regulator temperature can make a difference on the system voltage and therefore the draw of the battery and other items.
However the biggest reason for high charging current right after start is the battery is low.