Manufacturers mainly state, not to exceed the stated V2l load, which you now know is governed by a resitor for charge/discharge, to match the current capacity of the cable. Could it be they didn’t feel obliged to tell you as a company, because of the liable risk ?
You can buy V2L leads with a commando plug at other end rated at the manufacturers V2L spec, which can be plugged into a commando socket, that is wired to say the generator terminal of an hybrid invertor or to a storage battery and then setting the correct parameter in the menu’s so not to pull more Amps or by using the correct size cable and a suitable resistor, this can increase the output but, not always.
I have edited the end of previous post now that you have seen resitor values needed. Although much of the information is available by looking in the right places, I didn’t really want to go into as stated at the beginning of the thread as, although a relatively simple modification, its not something someone should be doing unless they have knoweledge of the principle of resitors and how they work, along with the skills to carry out the work safely and by using the right equipment. Thats my opinion anyway, however I’m happy to provide them for educational purposes in the future 🙂