How apt buy solar chargers?
Solar Chargers are peppery in the mall. As present solar charger does not have manufacture standards, the price and quality is so another from each other. I have base some solar chargers because fewer than us$5 dollar one piece in the market. So what kind of solar chargers are agreeable? Evaluation of a solar charger effectively depends above 3 aspects:
First one is solar panels:
Currently there are two type of solar panel one is amorphous silicon solar cells and the other is crystal silicon solar cell. Crystal Silicon can be divided into polycrystalline and mono crystalline. The photovoltaic conversion efficiency for each kind is: mono crystalline (up to 17 per penny)> polycrystalline (12 to 15 per cent)> amorphous silicon (5 percent). However, crystalline in poor light does not have a current. Therefore, it is better to use mono crystalline alternatively polycrystalline for the solar cell stuff.
Next we absence to converge on the solar plate power. Generally speaking, the solar panels power is proportional to the size of the piece. Solar panels power is the extra the better, so namely the current below the sun, ambition be filled with its built-in power cell soon. But in reality, we need to find a equilibrium point between the solar plate power and the size of solar charger. Generally speaking, solar power charger can not be less than 0.75 w, whether it is less than this, charge current ambition be too small, basically there will be no apparent efficacy. The second one is Control circuit:
The solar panel is in the front of the charger, creature responsible for collecting solar vigor and transferring solar vigor into electricity. The control circuit is the navel of the entire production. It has two features: Firstly, the current will be saved for many for possible and be transferred to the built-in battery, the other is while the charger recharge compartment calls and other devices, the electricity in the battery ought be transferred to them for much as possible. Unfortunately, for of technical problems, some china contractors don't pay too many attention on the devising of the chief perimeter, resulting in producing needy quality solar charger.
When clients judge to buy solar charger, they need to disburse more care to these two indicators: Second conversion rate (the front end to the warehouse battery) and dismiss efficiency .Solar chargers with tall efficiency is better.
The third one is Battery:
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