Dear customer, 

This is Helen from Bizbee, we are the leading supplier of smart phone repair parts. Hope everything goes well:) , 

iOS 12 have come out for a few weeks, we are also testing batteries on the new system, all work fine. following is the test result for your reference:
If you need batteries, I'll recommend our high copy batteries to you:
1:1 TI PCB board+ETC battery cell Top battery raw material brand, very stable quality.

1:1 data shown on the battery test tools.

Click the following video to see the production process of iPhone batteries:
CE Certificate:
One UK Customer order more than 5,000pcs high copy batteries from us each month
Customer Feedback
Fast shipping by UPS or DHL
if any needs or questions, please contact me directly  by Mobile/Whatsapp/Wechat: 0086 13714565389  or Skype:  helen.xu0317 , TKS!
(PS:  Pls register in our Bizbee website with my name : Helen XU or 100077WO, then 3 surprises will be offered for you.)
1.$0.01 repair kit
2.get $100 coupons at $1 per month!
              FORWARD     Bizbee Eshop    Send me price    UNSUBSCRIBE