“Dont use them for replacement batteries !
I needed new battery for my iPhone 6 . The Sutton shop replaced it and straight away my phone started to shut down and reboot regularly . The shop replaced it again , and the same problem arose. He then wanted to charge £75 to sort the charging point which he said could be at fault
We have since given up , lost our money and gone to Apple . They confirmed it was a dud battery and replaced it . We have had no problems since !”