It is possible to upgrade the internal battery...
Lithium Battery Iphone 5 6 7 8 Plus X Max 11 12 Pro High Capacity Replacement - Mobile Phone Batteries - Aliexpress
Can you put the iPhone SE internals in the body of slate black iPhone 5? - Quora
Will the iPhone 5c battery fit in iPhone 5s? - YouTube
AmpSentrix Professional Quality Replacement iPhone Battery (Beveled iPhones) | eBay
How to Know Battery Replacement required for iPhone 5S, 6, 6S, 7, 8? - Rapid Repair
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Apple iPhone 5 (6th Gen) Dimensions & Drawings | Dimensions.com
Apple iPhone 5S (7th Gen) Dimensions & Drawings | Dimensions.com
iPhone 5s - Technical Specifications
Stronger battery inside iPhone 5s/5c detailed
Apple iPhone 5s - Battery
iPhone 5 battery repair - BrokenWeCanFixIt | Los Angeles
Battery for iPhone 5s | Konga Online Shopping
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How To Replace The iPhone 5's Battery
iPhone 5 - Wikipedia
iPhone 5 to 5c Screen and Battery Swap - YouTube
Which iPhone should I buy? | iSource
Deji Original Li-ion Battery For Iphone 5s High Quality Original Capacity 1560mah Internal Batteries Replacement Free Tool - Mobile Phone Batteries - AliExpress
Apple's iPhone 5S, 5C larger battery specs detailed - CNET
OEM iPhone 5 Battery Replacement - Original iPhone 5 Battery Replacement - ETrade Supply
iPhone battery capacities compared: iPhone battery life in mAh and Wh | Macworld
iPhone 5s - Wikipedia
Apple Increases iPhone 5C and 5S Battery Sizes relative to iPhone 5
