Sales of mobile power bank now is very subjective, so often appear some inferior products in the market to sell, but don’t worry, now teach you how to check mobile power supply, Electric core mobile power supply some inferior use is used inferior electric core second hand assembly, charging is easy to heat, and the service life is very short, with a few days appear various problems, security is no guarantee.
Safety mobile power bank of a good brand must have, over current protection, over charging protection, under voltage protection, light load, over load protection , short circuit protection, ultra light, long life performance, the most important thing is that not easy to be explosion. Another is the conversion rate, good brand itself actual mobile power supply. The conversion rate is only 65% to 80%,
for example: mobile power 10000mAh full charge, recharge mobile phone also can only charge 6500Mah to 8000Mah, if it is bad Mobile power conversion rate is only 40 to 50%, the other as indicating the conversion rate in 80% above, should be cautious whether empty mark. Mobile power supply of various grades: From the conversion rate can be divided into general, intermediate, advanced, super four grades, the corresponding conversion rates were: less than 60%, 60-80%, 80-90%, 90%.
In circuit design, in addition to the general level of non synchronous rectification technology, other three grades are synchronous rectification technology. From the capacity can be divided into emergency, commerce, quality, professional grade four. Among them, 2000mAh following emergency grade, 2000-4000mAh for business class, they can be used for more than 300 times; quality and professional level is relatively belongs to the large capacity mobile power, the capacity is 4000-6000mAh, the capacity of 8000mAh and above. High capacity mobile power requirements, cycle life can reach 500 times. Though our explain, you can catch our opinion for you correct choose the power bank.see more information: http://www.llwpower.com
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