Yea, the SL7 onboard charger is a 11KW charger when using 3 phase (16A max per phase) or 7KW when using single phase (32A max). Regarding the BYD maps, yea, it could be better. Unless something has changed you can only save a max of 20 Favorite locations, the zoom in and out returns to the default zoom level after about 30 seconds (this really bugs me as I like to select my zoom level), and just a variety of other things I don't like when compared to Google Maps. I use Google Maps running under GPack on my Atto. Running Google Maps under Gpack is better than running it under Android Auto/Apple CarPlay which seems to act like a handicapped Google Maps. Under Gpack Google Maps is just like running it on your smartphone....no limitations like when running under Android Auto/Apple Carplay. I prefer Google Maps to other map programs as I'm use to Google Maps, I have Google Maps on my smartphones, and when you switch vehicles as long as the vehicle has Google Maps once you log into your Google acct you now have your personalized Favorite map locations again. Plus, after X-amount of years the BYD map program will stop updating/will not show certain things like traffic jams/road conditions ahead of you unless you subscribe directly with the BYD map company. Yeap, Google Maps is the way to go.