How to Choose Portable Solar Power Generator
Author: Source: Datetime: 2016-09-22 14:21:34
Portable portable solar power generator from the constitution is divided into three parts: First, solar panels; Second, special storage battery; Third, standard accessories section.
In general, the impact of portable solar power generator the quality and performance are mainly: Solar panels and special storage batteries:
Solar panels on the market today have a solar panel, monocrystalline,polycrystalline silicon three kinds of amorphous silicon
Monocrystalline silicon solar panel
1, Single crystal silicon solar cells: Currently, the production process has been finalized, is a semiconductor solar cell production uses more power, features: good stability, photoelectric conversion rate, etc., according to the current level of technological development of solar energy, monocrystalline silicon solar photoelectric conversion rate of battery can reach 15% --18%.
Polysilicon solar panels
2, Polycrystalline silicon solar cells: monocrystalline comparative advantage lies in low cost solar cells, photosensitive better than silicon, sunlight and incandescent lamps can be sensitive, but less than is obvious, photoelectric conversion rate are: 11% --13 %, with the development of technology, efficiency is also improved, but compared to the efficiency of monocrystalline silicon or slightly less;
Amorphous silicon solar panels
3, Amorphous silicon solar cell: amorphous silicon solar cell problems in photoelectric conversion efficiency is low, the international advanced level of about 10%, currently only: 6% - 8%, and is not stable enough, often the conversion efficiency decline down phenomenon, so not a lot to do large-scale solar power, but mostly for the low-power, such as a pocket electronic calculators, electronic watches and clocks, and so on.
Private storage battery
Now portable solar power generator will be on the market with a dedicated lifePo4 storage batteries to prepare for cloudy days and at night charged
From the material sense, lithium and nickel-metal hydride batteries have to distinguish
Lithium Battery: was divided into two --- lifePo4 batteries and lithium polymer batteries
The charge and discharge characteristics of lithium batteries are not memory effect, you can be charged at any time.
LifePo4 storage batteries: The biggest problem is that the charge and discharge memory effects, there are charge-discharge efficiency decreases defects, and generally speaking smaller than the voltage of each cell lithium-ion battery, it is solar powered protable generator is no longer in use lifePo4 batteries as a storage battery to use.
Also: Qualified portable solar power generator battery charge will have to let overload, overvoltage, overcurrent protection, the battery is fully charged will automatically shut down no longer be charged and discharged to a certain extent also automatically cut off power to protect the battery and power equipment.
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