Weird power issue

[jebem]

(05-11-2019 10:50 PM)Tugdual Wrote:  

(05-11-2019 10:04 PM)rprosperi Wrote:  It could be. I would stick with the Power Adapter that came with your Prime. All power adapters with the same connector type are NOT created equal, and just because it fits, does not mean it's OK to use.

Well, this is wise but Hp doesn’t package any adapter with the G2, only a 1 USB cable.

There is a logical explanation for that Prime behavior.

Fast chargers are able to supply in excess of 5 amperes depending on the smartphone device being able to consume that current.
But that large current ability is not the primary reason for that Prime behavior.

What those fast chargers do is to supply up to 20 Volt in riple mode to force more current into the device being charged. This is well above the standard 5 Volt expected by the Prime, i would say.

We all know the Ohm's law, so roughly the current passing on the device depends on the source voltage divided by the device's impedance.
Therefore a chager able to supply in excess of 2 Ampere is not the issue because the device will only consume what it needs.
However if you feed well above the standard 5 Volt as used in regular chargers compatible with USB 1 or 2 or 3.0 protocol, then the device may be forced to pass higher current than needed.

Whether the Prime is able to cope with these modern USB 3.1 fast chargers is dependent on the incorporated hardware and firmware to handle that, and only the manufacturer is able to tell.