Hello, I have this cheap and popular PWM charge controller:

and I wonder what does the black arrow in the right side of the central screen means? I know the left arrow means that the battery is getting energy from the solar panel but the right arrow is there even when there is no load turned on that could draw energy FROM the battery (the loads are connected directly to the battery, not to the charge controller). the manual is useless as any chinese manual.
Does anybody know what that arrow mean? thanks in advance.

and I wonder what does the black arrow in the right side of the central screen means? I know the left arrow means that the battery is getting energy from the solar panel but the right arrow is there even when there is no load turned on that could draw energy FROM the battery (the loads are connected directly to the battery, not to the charge controller). the manual is useless as any chinese manual.
Does anybody know what that arrow mean? thanks in advance.
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