A few questions regarding the dark arts of solar panels, lead acid batteries and lithium power stations.
I have an external port to attach a 220w portable solar panel. When I connect this panel directly to my Anker power station it charges with 170 watts. When I connect the panel to the port I get around 65 or 70 watts. My rooftop panel charges at 65 to 85 watts.
The portable panel was oriented towards the sun while the rooftop is of course flat but as noted above the portable panel performs no better than the rooftop one. Also, if I attach the portable panel am I getting charge from both panels? When I plug it in the wattage would jump to around 140 but instantly drop back to 60 or 65.
I have an external port to attach a 220w portable solar panel. When I connect this panel directly to my Anker power station it charges with 170 watts. When I connect the panel to the port I get around 65 or 70 watts. My rooftop panel charges at 65 to 85 watts.
The portable panel was oriented towards the sun while the rooftop is of course flat but as noted above the portable panel performs no better than the rooftop one. Also, if I attach the portable panel am I getting charge from both panels? When I plug it in the wattage would jump to around 140 but instantly drop back to 60 or 65.