Battery Life and Conclusion - Verizon iPhone 4: Thoroughly Reviewed
iPhone 4S Battery Life Worse for 3G Data and Media as Compared to iPhone 4 - MacRumors
iPhone 4S Battery Life Problems Befuddle Apple Engineers, Owners | HuffPost Impact
iPhone 4S: why has standby time dropped? | Technology | theguardian.com
iPhone 4 Battery Replacement Service
Very poor battery life only 4 hours screen on time, anyone has ant recommendations, I'm using thr exynos variant. Have shifted from iPhone a few months back, I noticed poor battery life
iPhone 14 Pro Max review: The battery life champ (for now) | Macworld
iPhone 4S: why has standby time dropped? | Technology | theguardian.com
Apple iPhone 4 A1332 Battery Replacement Kit with Tools, Video Instructions, Extended Life Battery and Full One Year Warranty - Walmart.com