Highly efficient and practical

Finally a really powerful solar charger that charges mobile phones and also power-hungry Power Banks. Very handy collapsible, easy-care fabric secured with Velcro and beautifully suited by the carrying handle to take away. The two USB outputs are built very convenient and easily accessible in a black casing with control LED. Even on cloudy days so I can still charge my Power Bank. However, some mobile phones and Power Banks are only designed for high pulse load currents, these devices load therefore only when the sun shines. I have for example a large power bank 10000mAh with accurate and percent display, this invites even in very cloudy days or with 300mA on. By contrast, my little Power Bank with 2500mAh, which invites not yet with 600mA, the charging method is probably here with high current pulses. That's why I'm testing various Power Banks.