and the 30 pin through hole style connector was next, this style/type is much much easier to mount/solder
![Passive circuit component Circuit component Hardware programmer Microcontroller Computer hardware]()
![Passive circuit component Circuit component Hardware programmer Microcontroller Computer hardware]()
and that's good enuff for the girls we date!
and that's good enuff for the girls we date!
I bought a Tesla Model S Gen 2 Charger - Now What?
Let me start off by saying how much I appreciate the folks on this Tesla 10Kw Open Source Charger Controller forum and the Tesla Charger Support Thread on the Open Inverter dot Org forum for doing all the heavy lifting for us to make this used Tesla Model S Gen 2 onboard charger a possibility in our EV Conversions.
I assume like most of you reading this, I have read the Gen2 Wiki, I have downloaded the Tesla Charger Evbmw Llogic Board Manual PDFs, I have watched their The Tesla Project : Charger 10kw Run YouTube videos. Having said that I firmly believe there is still a gap between those folks and those of us born without the Electrical Engineering set of chromosomes. That's where this thread comes in, help me document on the Duplo level what we will need to go from eBay order of one used charger to actually charging our converted vehicle using basic Level 1 SAE J1772 plug/connection (baby steps). I am happy to document it all (in pictures mind you), and buy all the bits and parts, I just need you to help me fill the gaps.
I hope to keep this thread wiring diagram free, ha ha, yes that's the level of simplicity I am striving for. OK, so here is what I know and here is what I got so far.
Assumptions: We will start off by doing this for the US, if we have input from across the pond I can add those updates too.
![Font Screenshot Parallel Electronic device Software]()
![Electronic device Rectangle Machine Cable Wire]()
![Gas Auto part Machine Electronic component Transparency]()
![Font Rectangle Metal Gas Auto part]()
![Rectangle Font Natural material Pattern Metal]()
![Rectangle Font Wood Signage Number]()
![Font Material property Rectangle Parallel Label]()
I assume like most of you reading this, I have read the Gen2 Wiki, I have downloaded the Tesla Charger Evbmw Llogic Board Manual PDFs, I have watched their The Tesla Project : Charger 10kw Run YouTube videos. Having said that I firmly believe there is still a gap between those folks and those of us born without the Electrical Engineering set of chromosomes. That's where this thread comes in, help me document on the Duplo level what we will need to go from eBay order of one used charger to actually charging our converted vehicle using basic Level 1 SAE J1772 plug/connection (baby steps). I am happy to document it all (in pictures mind you), and buy all the bits and parts, I just need you to help me fill the gaps.
I hope to keep this thread wiring diagram free, ha ha, yes that's the level of simplicity I am striving for. OK, so here is what I know and here is what I got so far.
Assumptions: We will start off by doing this for the US, if we have input from across the pond I can add those updates too.
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and here is finished Tesla Model S Gen 2 charger open source logic board
![Circuit component Passive circuit component Hardware programmer Computer hardware Electronic component]()
![Circuit component Electronic component Electronic engineering Hardware programmer Rectangle]()
one caveat, see how there is a screw missing in the pics above, that's because our new board does not have this spacer / riser like the OEM one did so I opted not to install a screw there at the risk of over tightening it and cracking the circuit board
below is a pic of the OEM board flipped over so you can see what I am talking about
![Circuit component Hardware programmer Wood Electronic instrument Rectangle]()
below is a pic of the OEM board flipped over so you can see what I am talking about
I like to bag and tag my charger bits, especially since when working on an EV Conversion you are going to have battery bits, controller bits, and current sensor bits, etc.
![Circuit component Hardware programmer Electronic component Font Electronic device]()
Literally Nobody: "Hey how much does that Tesla Model S Gen 2 charger weigh?"
Me:
![Gadget Wood Font Communication Device Multimedia]()
![Font Wood Electric blue Gadget Rectangle]()
![Camera accessory Measuring instrument Electronic device Font Gadget]()
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Me:
here is how I wired the low voltage communication side
![Photograph Rectangle Font Gas Parallel]()
Following the diagram above:
1. Connect your 12V+ to B1 (labeled 12V+) and A3 (labeled IN1).
2. Connect your 12V- to B7 (labeled GND) and to the charger's casing (chassis ground).
3. Later on I will connect the Proximity signal from your EVSE (Pronounced: charger cord plug) to B11
4. Later on I will connect the Control Pilot signal from your EVSE (Pronounced: charger cord plug) to B5
Following the diagram above:
1. Connect your 12V+ to B1 (labeled 12V+) and A3 (labeled IN1).
2. Connect your 12V- to B7 (labeled GND) and to the charger's casing (chassis ground).
3. Later on I will connect the Proximity signal from your EVSE (Pronounced: charger cord plug) to B11
4. Later on I will connect the Control Pilot signal from your EVSE (Pronounced: charger cord plug) to B5
So our mission was to send some power to that custom "after market" circuit board to see what happens
![Mobile phone Communication Device Mobile phone battery Gadget Telephony]()
some crimping required, now for those of you skierd of wiring or convinced you hate it, here is the first
Top Tip: treat yourself to a decent set of automagic wire strippers, don't use those stupid strippers like the ones below that you have to pull on, yes uncle Ned can strip some 9 Gauge solid copper house wires with them in a 30 second video but those don't work for me and they may not work for you, also if you go out and buy a set, that set may not work for you either, that's ok, you will find a set that you love, allow yourself to fail, allow yourself to learn
![Wire stripper Slope Font Bicycle part Pliers]()
Top Tip: treat yourself to a decent set of automagic wire strippers, don't use those stupid strippers like the ones below that you have to pull on, yes uncle Ned can strip some 9 Gauge solid copper house wires with them in a 30 second video but those don't work for me and they may not work for you, also if you go out and buy a set, that set may not work for you either, that's ok, you will find a set that you love, allow yourself to fail, allow yourself to learn
my strippers below are OK but they are 17 times better than the yellow ones above
![Circuit component Wood Electrical wiring Cable Font]()
I think someone in one of my other threads / posts pointed out we do not have to take that front white piece all the way out, well I tried with it partially in and I can't tell if the terminal twisted is in there sideways or upside down, so I just pop these out and shove my eye balls in there
![Circuit component Wood Auto part Cable Composite material]()
this is the smaller of the two plugs it is the one A Plug on the left, and here we shove the red positive wire up it's butt in slot #3 (the holes on the back of this plug are actually numbered with tiny tiny numbers to help you out)
![Wood Technology Cable Wire Electrical supply]()
the plug below came with my charger when I bought it and it already had that yellow wire in it so I just left it, I have no idea what it does
![Circuit component Wood Cable Wood stain Electrical wiring]()
this is the smaller of the two plugs it is the one A Plug on the left, and here we shove the red positive wire up it's butt in slot #3 (the holes on the back of this plug are actually numbered with tiny tiny numbers to help you out)
the plug below came with my charger when I bought it and it already had that yellow wire in it so I just left it, I have no idea what it does
Looks like I shoved two black ground wires in the #7 hole on the B plug next
![Wood Hardwood Toy Wood stain Cable]()
![Rectangle Wood Gadget Adapter Data transfer cable]()
and then I took the red wire from the A Plug and added another longer red wire to it and shoved both into hole #1 on the B Plug
![Circuit component Electrical wiring Wood Cable Gadget]()
![Circuit component Wood Rectangle Cable Wire]()
and here is what our red Positive and black Negative (ground) wire connections look like
![Circuit component Electrical wiring Wood Red Cable]()
next I crimped a loop on the short black wire off of the B connector and simply ran it to the closest charger mounting hole to act as a chassis ground
![Wood Hardwood Flooring Cable Wood stain]()
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![Wood Gas Audio equipment Hardwood Flooring]()
I like to add a fuse on the positive red wire as close to the power source (aka battery in this case) as possible to protect our electronics
![Light Electrical wiring Cable Composite material Circuit component]()
and I use the smallest fuse I can get away with (2 amps in this case), usually these little gizmos don't need that many volts, we are not talking about spinning our electric motor here, we are powering up a tiny microcontroller and blinking some LEDs folks, if you use a small fuse and it blows, that's ok bump up to a larger one until it doesn't pop any more
![Cable Electrical wiring Wire Composite material Auto part]()
and I use the smallest fuse I can get away with (2 amps in this case), usually these little gizmos don't need that many volts, we are not talking about spinning our electric motor here, we are powering up a tiny microcontroller and blinking some LEDs folks, if you use a small fuse and it blows, that's ok bump up to a larger one until it doesn't pop any more
and I like to add an OFF and ON switch on the black negative (aka ground) wire also close to the power source (aka the battery) and there's our little "power" harness for the Tesla Model S Gen 2 battery charger
![Wood Font Hardwood Wire Audio equipment]()
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