On the AC200 Max, do we know what specifically prevents the use of 3rd party batteries being used as expansion cells in place of the OEM ones? If it's just the plug type, and not something to do with communication between the base unit and the expansion pack, I would think it should be fairly easy to bypass.
I own an Ecoflow R600 Pro (Kickstarter) and the Pro Kit, which allows the use of whatever cells I want in the proper voltage configuration.
I own an Ecoflow R600 Pro (Kickstarter) and the Pro Kit, which allows the use of whatever cells I want in the proper voltage configuration.