power level @<20%, and when switching from cellular to WiFi connection, phone shuts down
was a breeze, took 10'
be careful to slide out gold tabbed pressure connector after taking out two battery connector screws
iPhone 4S LCD Screen and Digitizer
iPhone 4S Replacement Battery
MacBook Pro 15" Unibody (Early 2011 through Mid 2012) Replacement Battery
iPhone 4 Home Button Assembly