If your phone is charging slowly, the issue is rarely the battery itself; it's almost always a failure in the power negotiation handshake between the charger and the phone. In 2026, phones don't just "draw" power; they request it via digital contracts. If that contract fails, they default to a safety mode of 5W (slow charging).Execute this 3-step rapid triage:Clean the "Handshake" Pins: Use a no..