Both phones (iPhone 5 and Moto X) had batteries older than 2 years and required frequent charging.
Both phones were relatively easy to repair. Your guides and uTube videos were very helpful. Also other uTube videos not from ifixit were informative as well. Be very careful to check the iPhone power switch cable connector, took me 2 additional disassemblies before I got it right. Both repairs went great, saved a ton of money and did not have to switch phones.
Take your time and don't force anything. Make sure you are getting a new battery. People are selling used batteries on eBay and Amazon.
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