Chosen Solution
I replaced my old battery since my phone seemed to drain quicker and quicker but now the battery life is even worse. Before the battery could last a day with light to moderate useNow the battery drains within 4 hours with moderate useMy phone will randomly shut down with plenty of battery left (today it happened at 38%). Afterwards I can turn it on again and sometimes use it for extended periods of timeIf I plug in the charger after this battery percentage will drop while charging before increasingIf I plug it in at ~1% battery percentage will often immediately jump up to 20+%The phone does not become any hotter than usual during normal use or while chargingI also changed the screen shortly after which could have something to do with it but I had a lot of the same issues with the previous screen as well (not original) Any idea what could be the cause of this? Thanks!
I’m in a similar situation, I bought a cheap replacement battery and have the same symptoms. My guess is that it isn’t able to maintain sufficient voltage as the battery discharges or during a sudden spike in current draw. I’m just buying a new one and spending a bit more. Is yours a 1560mah one? Those appear to the cheapest ones, and I’m wondering if they all come the same place.
Sounds like a faulty battery, I would replace it again first, since they are so cheap. If you know the battery is good, it is likely the U2/tristar charging chip on the board.
