Here is my self designed charger that fits my requirements but couldn't get the guts to fit inside the plug, the extra box is fine.
It has a 20 meter cable to reach the back of the house with my off grid system.
It tells my car to use only 5.3A, at least that is what my clamp meter shows.
...and of all things I found an outdoor RCD safety adaptor still new and originally packed for $10 just last Sunday at the local flea market
I have not made the charge current adjustable although that would only be a few lines of code.
At this stage I don't need to adjust it as 5.3A is awesome because my current grid-tied solar system can handle that without using any grid power.
5.3A x 240V = 1272W
Anybody who actually checks their solar system knows that a 1.5kW system never puts out more than 1.3kW in the real world.
My off-grid inverter also runs more efficient on that current too, so when some clouds pass by the off-grid house battery won't get to heavily loaded so I don't see any need for a feedback regulated system right now.
This might change in summer when I have the 12 dedicated solar panels up and running, which I am about to install on the roof soon.
It has a simple one button timer function instead that can be set and reset while it is charging. So if I see clouds coming I can set it to terminate charge between 1-4 hours or cancel that at any time without disrupting the charge.
One strange thing I noticed in the 3 days I am using my slow charger is that I am getting 3-4km more REAL driving range.
Absolutely same distances down to the 100m, same time driving, same traffic, I always watch exactly my econometer when I drive uphill and regen with the same paddle setting downhill.
This does not show on the dog, same 29Ah SoH, which I am now calling the bullshit meter because that is based on some software calculations as I see no true evidence of any measured capacity here.
Despite those extra kms I have never managed to complete the charge because the charge is ...errr.. slow and doesn't complete by the time for my second trip.
The two trips I do on weekdays are a bit less than 6 hours apart.
When charge is completed with the original charger the guesso-meter shows 45km but I come home with 1-2km left.
Incomplete slow charge showing 42km and I come home after the second trip(which is in the morning) with 5km left.
The car stands overnight half empty.
Tomorrow I will be able to do the complete slow charge but I won't be driving my two exact weekday trips so I will have to monitor this a bit longer to find out what is going on here.
At least I am not charging daily up to 100%, that was my intention.
I am happy to supply more details of my charger if required for the technical minded
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