Chosen Solution

Hello. Here’s the deal: This 5C is draining ANY battery, even in standby, and reset didn’t help. The phone only takes 2-3hours from 100% to 0%…. I’ve already tried with 4 or 5 different batteries (all of them new). I’ve also tried this board on a different case. Nothing solves this problem. So I think this might be a hardware problem on the logic board. Does anyone knows exactly what it is? Thanks

It could be a Lightning port, that would be your cheapest option. More likely its the power IC. It gets damaged when you use non-Apple chargers and cables. Its also possible that one of the fuses/filters blew.