We received R10 000.00 worth of charging credits when we bought my wife's iX50, because it was a demo, but have used very little of that, testing whether it actually works, as having 12kW peak of solar panels on my roof, and living in sunny South Africa, I have been charging our two BMW EVs mostly with solar power. I have recently replaced the two Duosida chargers I had with the BMW chargers that came with our iX50 and i4M50, because I almost always had to plug the cable into the vehicle more than once before I did not get an error and red lights flashing. With the Duosida chargers it also needed quite a lot of force to plug the cable into the vehicle and unplugging it, to the extent that my wife was not strong enough to do so. However, the Duosida chargers had two features that I miss: 1. They would communicate with one another wirelessly, so that the 32A (selectable) charging rate would be halved to 16A to each charger when both were in use and 2. One could set the starting time and end time (to minimise electricity cost, for example depending on the price at certain times of the day, or when my solar panels were producing power). However, when plugging in the charger cable into the vehicle after the start time, it would not stop at the set end time, which was another reason I elected to switch to the BMW chargers supplied with each vehicle. I managed to achieve no 2. by adding a CDI Astute timer switch to each power supply to the chargers, controlled by a cell phone app, each of which can be also switched on and off manually via my or my wife's cell phone, and I have set separate times and days for charging each vehicle. A little more effort, but it works for me, and my wife can plug her charging cable in and out herself.