Chosen Solution
I replaced my old battery for a new iFixit battery yesterday, everything turned out PERFECT.. at first. It started up right away as soon as I held the lock buttonI used it all evening until the battery dropped down to about 10-15%I didn’t charge it overnight. So, I woke up to a drained batteryI try to turn it on and i get the “phone -> charger” to connect to charger..So I did that, I plugged my phone into my new original iPhone charger and I get the “dead battery” pop up indicatorI set my phone down for about 10 minutes then I come back to see if it got enough power to start it………… I hold the start button and nothing at all happens. Just a black screen. And that’s the issue! Has anyone else have this happen? Desperate for answers!
What made you want to replace your battery to begin with?
Troubleshooting charging starts with a usb ammeter (inexpensive tool and super useful—last I checked iFixit does not sell them, but they are available from iPad Rehab Supply and lots of other places). A known good device will consume about 1A charging current—so make sure your cable and charging brick are working with another device.
Then see what happens when you plug in this phone—you can try reseating the charge port (only if you removed it during your battery swap) and you can see if your phone will consume any charging current on this battery or your original battery. It should on both.
If not, then the next step would be to head to your local microsolderer to have them evaluate the phone and see if it is a candidate for a usb permission chip “tristar” change which can cause lots of problems and is the most common logic board fault—it comes from using your phone with fake chargers. One of the many ways in which a tristar failure will present is “I can charge just fine, as long as the battery has some charge in it. If the battery is stone dead, then I can’t charge at all” Tristar is a straightforward board repair, but it is not a DIY job since it requires specialty equipment.