This may have been posted before but I ran across this on Youtube. The quality and ingenuity are amazing. The owner/builder is an engineer and rock climber.
From the comments, he's an electrical engineer but his talents go beyond that.
Also, I noticed that the writing on the driver's side, "Shower", "Tesla Battery", etc., doesn't appear in the video so it must have been added electronically.
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Bob
2005 E350 Super Duty Ext Wheelchair Van
2002 Itasca 35U Motorhome
With regard to Herb's concern about the lack of a battery management system (BMS), I suspect that, as an electrical engineer, Josh (the builder) has it all figured out, but not in a way that's easy to understand.
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Bob
2005 E350 Super Duty Ext Wheelchair Van
2002 Itasca 35U Motorhome
That ambo has a serious electrical system, but also has some serious electrical loads.
Not sure I like that the Tesla cells don't have a battery protection system, but Tesla must be doing something right to manage the cells.
Herb
Tesla (and Josh) definitely have a BMS. I think they just meant that the modules don't have a BMS physically integrated into them. All it really takes is the ability to measure the voltage of each parallel group and some key temperatures (and of course all the software/algorithms to make sense of the data). Maybe some balancing resistors.
AWOL
Linear Mode
