Battery Wattage is correct. Even more correct would be to call it Wattage Delivered to Battery, but it's the same thing really.
MPPT controllers work by watts in = watts out minus 5%.
Your Wattage Delivered to Battery is the same, to the limits of the controller
400W delivered at 12V = 33amps
400W delivered at 24V = 16amps
If you have chosen a battery voltage that hits the amps limit of your contrller, you need to re-design the system to a different voltage, or live with the losses you have chosen
MPPT controllers work by watts in = watts out minus 5%.
Your Wattage Delivered to Battery is the same, to the limits of the controller
400W delivered at 12V = 33amps
400W delivered at 24V = 16amps
If you have chosen a battery voltage that hits the amps limit of your contrller, you need to re-design the system to a different voltage, or live with the losses you have chosen
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