Is it possible to power a 5v 3a device from a power bank via USB Type-C without a PD trigger?

Question

Electronics

Good afternoon!

There is a home-made device with a power consumption of up to 15 watts, which needs to be powered from a power bank.
On aliexpress, there are many models of power banks equipped with a usb type-c output and with a PD function. As a rule, the specifications for this port are indicated as follows: DC 5V / 3A, 9V / 2A, 12V / 1.5A.
Of course, all modes above 5V work in Power Delivery mode, but I do not have the opportunity to use a PD trigger in the circuit.

Actually the main question: is it possible to use the USB type-C port of a power bank without a PD trigger and will it give out 3A at 5 Volts in this mode?

For example , here is the model of a power bank.

The second question: are there any features when unsoldering the type-C socket, when using it only to power the device, without data transfer?

Answer 1

It all depends on the kindness of the Chinese who designed the bank. If the Chinese is evil and follows the standards, he will not give you more than 500mA without a smart controller.
By the way, in addition to PD, there are also QCs of various modifications, and in order for the trigger to work there, it is enough to collect the correct configuration of resistors on the connector pins.
Further, USB-C tails -> barell jack 5, 9, 12, 20V are traded on the same Ali literally at the price of borscht in the canteen - there is no interference in order to put a standard hole under the barell jack on the device and acquire such a wire with Ali - a microcircuit he sits inside the connector - 2 wires will come to you immediately with the right voltage.

On the second question (wiring) - everything again depends on the kindness of the Chinese. According to the standard, without a combination of resistors on the pins (that is, you just wired + and just -), it will not give you more than 500mA 5V.
In order not to study the whole mountain of power specifications (it's really a few thick PDFs), just take the tail from Ali for a hundred rubles for the desired voltage.
Yes, and soldering a usb-c connector to a board or cable is still a pleasure - without a good tool and straight hands - you will spoil boards and parts before acquiring a tool and soldering skill.

Answer 2

buy a power bank of the required energy intensity and solder a 5V 3A DC / DC module into it (directly to the battery terminals) for your device
. charging your cans, i.e. CC / CV for battery voltage + case for that's all.