I'm thinking about having this done....and just wanted to see if others have tried. I'm planning on having 30 feet added,,,making 50 feet total. The extra length has amperage/volt loss issues, so it was recommended that the extended cord should not charge above 24A. I have 2 cords BTW.....the extended version would be largely for destination charging...and should solve lots of problem for using dryer outlets etc. So...has anyone tried this as a solution (rather than fabricating your own extension cords)? Thanks.