Re: Instant Fail
Yes. When using a Huawei charger the phone can negotiate the charging voltage over the USB data lines thus nearly doubling the power transfer from 10W (5Vx2A) to 18W (9Vx2A). A conventional charger (or data cable) won't respond to the negotiation sequence so charging will proceed at 5V as normal. The same applies if you plug in a wireless charging dongle.