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The design specification

Dongguan Large Electronics Co.,Ltd | Updated: Mar 18, 2016

Because there are hundreds of millions of global mobile phone, only to achieve safety, security protection failure rate must be less than one over one hundred million.Because of circuit board fault rate Generally far higher than one over one hundred million.Therefore, battery system design, must have at least two security defense.Common mistake is designed with the charger (adaptor) directly to the battery.This will be overcharge protection role, completely to the battery protection board.Although the protective plate failure rate is not high, but, even if the failure rate is low to one over one million, everyday probability on a global or explosion.Battery systems, such as to over charge and discharge, over current are providing security for two respectively, each protection failure if it is one over ten thousand, two protection failure rate can be dropped to one over one hundred million.


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