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Charging current for Cycling Use (higher charging voltage) has a limit at 0.3C Amps. Without the limit the battery would pull 2C amps at that charging voltage. In the vehicles, the starting battery, the system load, alternator w/ regulator are all wired in parallel. AFAIK, there is no current limiting between the alternator and the battery.
That generally agrees with charging voltages imprinted on some of the batteries. For example: Notice that initial charging current for Standby Use (lower charging voltage) has no limit. Charging current for Cycling Use (higher charging voltage) has a limit at 0.3C Amps. Without the limit the battery would pull 2C amps at that charging voltage.
Normally you would not expect more than 3A from such charger, however since there are large capacitors at the end of its internal circuit, charger is capable of providing higher inrush currents. To account for all this information I have set the current limit to 4.2A.
I have a 3A charger powering the current limiter. Normally you would not expect more than 3A from such charger, however since there are large capacitors at the end of its internal circuit, charger is capable of providing higher inrush currents.
The current is limited to approximately 1A (≈1.25V / R2) in this battery limiter. Note that the minimum voltage drop across the limiter is about 2.5V. In your design, the point where the current starts to drop is the constant-voltage value from your regulator.
That's because a normal (healthy)"12V" lead acid battery float charged at that voltage level will draw VERY little current, that's why it can be float charged indefinitely that way with very little water loss over time. Charging current for Cycling Use (higher charging voltage) has a limit at 0.3C Amps.
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Live ChatNotice that initial charging current for Standby Use (lower charging voltage) has no limit. Charging current for Cycling Use (higher charging voltage) has a limit at 0.3C …
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Live ChatIf you limit the current then the voltage will consequentially be less than it would have been without the limiting. Like Reply. crutschow. Joined Mar 14, 2008 36,347. Jun 22, …
Live ChatCurrent Time . Chapters. Loaded: 0%. Remaining Time - ... Some brands have developed an app that lets users set the battery charge limit without entering the system BIOS …
Live ChatCharging current for Cycling Use (higher charging voltage) has a limit at 0.3C Amps. Without the limit the battery would pull 2C amps at that charging voltage. Here''s what …
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