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Battery is mainly composed of the protection board and battery cell,there is a lots of different brands and factories providing these material for the battery.The original solution for iPhone battery is:The protection board adpoted Texas Instruments(TI) and Taiwan Company solution,the battery cell is provided by three companies, ATL battery cell, LG battery cell and 2%-5% Sony battery cell.

We grade the iPhone Battery into 4 different types of quality in the market(The original version could only buy from Apple authorization channel). The above table is the full details of each condition.

Gerneral AfterMarket 

Chasing a balance between price and quality for customers‘ need,this version is widely accept for clients come from developing country. It has sustainable supplying chain in China, and the battery cell and protection board are OEM copy quality from small third parts factories.  No doubt, the other components of battery are all OEM copy. For most cheap prices battery,it may be durable at the beginning, but the capacity drops quickly after 3-4 months since. The quality of the battery cell is unstable and it is easily damaged by fast charging and high current discharge.

Premium AfterMarket

It is better than Gerneral AfterMarket Basic cause it comes with mainstread battery cell and protection board. Typically, the battery cell provide from several different factories, the most popular 4 on China market are ETX,VEKEN, GANFENG, and JUXIN.The Protection IC adopt InnoSwitch/Powerflash solution with Korea imported IC,which is a stable and reliable solution.

Platinum AfterMarket 

In order to build a trustworthy brand, some clients have higher requirements for product quality. So this version created for a higher customer demand.The core components battery cells come from Top brand cell Supplier and use TI solution with Korea Impoted IC which its performance is almost the same as the original.

Original

The materials are 100% original from Apple-authorized factories. Battery cell comes from like LG/ATL/SONY, adpoting (TI) and Taiwan IC and assembled by authorized factories like SUNWODA/DESAY. Obviously, the original one with a higher cost and it could only buy from Apple authorization channel.