I tried a retractor and found that the tension that built u was much too high by the time it was extended down. I got 2 tool balancers instead that could make the load 'zero gravity' but due to the heavy
EVSE cable unraveling, the weight seen by the balancer decreases due to the self-support (dangling) as the EVSE cable unravels down so it can't maintain 'zero gravity' at all heights. The tool balancer's tension when fully extended, is a fraction of a retractor's so the handle can be pushed high overhead when not in use and then be pulled all the way down to charging level without excessive tension. I highly recommend using a tool balancer if anyone wishes to this type of EVSE setup. The balancer is a cool invention. For a fixed weight hanging from it like a tool with a light cable or wire, it makes it float like its weightless at any height!
I installed 2 used Packers Kromer 7230-01 'zero-gravity' tool balancers that I found on eBay. They were 12 years old so beware. These ones have a weight range higher than I needed & longer extension so I needed to add 5lb ankle weights to each to increase the total maximum weight be within the 6.6-11 lb operating range. Bungee cords wrapped around to suspend the EVSE cable worked really well without strain, gripped tightly and provided some give if yanked.
Also tried a brand new smaller capacity tool balancer (below was a test run) from China on AliExpress. It worked very well, is completely metal, the weight range was perfectly matched to the power cable, but the extension length was shorter ~135cm. I'm not using it so if anyone is in the Toronto area and is interested in it, PM me and we'll figure something out.
I'm really happy with the result. No more dragging our thick & bulky JuiceBox Pro cables, unravelling, hanging, handling salty/dirty cables and tripping over them. Thanks again to
@jdonalds for sharing originally!