Hi @anthony_wi, and welcome to eve.community!
I've taken the liberty of merging your question into an existing thread on the charging protocols used by the V, hope you don't mind!
The V charges using the USB Power Delivery (USB-PD) standard, so it's not something proprietary. The default output for the adapter is 5V at up to 2A, which matches the USB standard. That means that any adapter that charges your V should also charge your phone or any other USB device, even if it was built for USB 1.0.
Once the V gives the charger the signal that it can handle more (higher voltages, more power) using the USB-PD protocol, the charger will adapt to feed the computer what it needs. You should be able to charge your V with a regular 5V USB power adapter, but don't expect it to charge fast or to charge at all if you're also using it.
If your devices support Qualcomm QuickCharge (QC), they will not be able to use that technology when using the Eve charger. Conversely, the V will not be able to make use of the QuickCharge technology in a charger built around that. A newer version of Qualcomm QuickCharge seems to be in the works that adds backwards compatibility with both older QC standards and USB-PD, so a charger like that may offer a solution when that time comes.
Please note that we can not guarantee that any non-Eve charger will work as intended, and can not offer warranty in case a third-party charger damages your V.