After more than 15 years covering everything Apple, it’s with a heavy heart we announce that we will no longer be publishing new content on iMore and the iMore forums will be closing as of November 1st, 2024.
Welcome to iMore! If resetting doesn't work it's possible that your battery has exceeded its useful life. Apple's iPhone batteries are designed to retain 80% of their original capacity for 500 full charge cycles. After that you're on borrowed time and I'm guessing your 5s is pretty old at this point.