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My iphone hasn’t been holding a good charge. Before installing a new battery I was getting about 12 hours of standby time. I purchased and installed the ifix it battery kit, and haven’t come up with different results in the battery life department. Is there a way to calibrate iphone batteries? Is there something else I can do to make my battery go longer? I’ve done all of the obvious things that I can such as turning down the brightness on the screen, setting auto lock to one or two minutes, turning off bluetooth, with the same results. Any ideas? Thanks for the help

I would swap in the old battery first and see if it shows a similar behavior. If it acted normal (like before the battery change) then I blame the new battery. Ifixit had a bad batch that were sent out with a lot of frustrated customers. Just contact them and they will send out a new one.