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I have just replaced the battery of my iphone 4s, with a brand new one from ifixit, but as soon as I plugged it in to charge it, it showed a max capacity of 771mAh rather than the ‘full capacity’ of 1430mAh. I’ve left it charging for 2 hours - using Battery doctor, and the capacity has actually gone DOWN as the battery has charged - it’s now reading 761mAh. What can I do?
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