Can I Use 6V 500MA Solar Panel for DFRobot Solar Power Management 5V?

Hi!

Is it safe to use a 6V 500 MA solar panel to power DFRobot Solar Management 5V and also charge 18650 battery via the solar management?

When I test the solar panel directly to the sun it generates more than 6V and more than 500 MA. The highest voltage I get is ~6.98 and the current is 2 ampere.

Please help me, because I'm still a newbie. Thanks.