Little Power (watts) solar panel and battery weak 9A

My buying these mini solar system is indeed been a while (2013) but only now I got to test the set. One must be aware that 20 watts and with supplied 9 Ampere battery (9 Ampere * 12 volts) a total storage capacity of 108 watts ergebit weak, but of which only about 54 watts (50%) may be discharged. Solar batteries can generally be discharged from the connected instrument only 50% of protection against damage.

In the test at home, I could set the phones via USB car charger cable to charge, as well as my Gopro camera. I also completed a current changers to load to 2 pieces 2000mAh batteries (AA). Quick after about 30 minutes the battery was empty. The next day, the solar panel (20 watts) had about 5 hours of sun this set. I closed my Fujitsu Lifebook in standby mode (off) in order to charge the battery. Unfortunately, the charging of the notebook (manufacturers datasheet LT 80 watts consumption.) That has about 15 minutes of battery was also empty.

My conclusion: Unfortunately, the set for this price is simply too expensive. If you buy yourself the components can be put together for almost 130 a more powerful set.

To use this set is really to load only to digital cameras or AA Akus weak amperage. To power the laptop or a TV with enough power is very difficult in my opinion.
In addition, the USB socket has supplied no power for my devices, after reading some recessions I'm not the only one with this problem.

Mfg,
Modeler