3. a comparison of the effectiveness of the emergency backup charger and charging is a charging cheaper prices there make emergency and efficiency equal a charger A
1
benefits. using the available time
2. There are creative originality an exotic thing.
3. reduce electricity bills.
4. emergency aid for some time.
5. new concept in the invention of the play.
6. new experiences in working
suggestions 1. Solar cells should be applied to In that light, or light sunny
2 time per cycle, with negative polarity positive polarity collision marketed while charging the power because they may cause a short circuit and damage to solar cells.
.
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