I thought that charging a Tesla with its 10 amp power cable would be a simple task for a BYD that can deliver 10 amps out of a standard power point. It seems I thought wrong.
This is most probably an issue with earth. The Tesla would probably see this as an earth fault because (maybe, I haven't checked) there isn't an MEN between the neutral and earth.
True..... only other stupid thought .... plug a resistive load (eg a real 100w light globe) into the outlet of the BYD at the same time as the Tesla. It may not like having only a purely reactive load like the switchmode shit in the Tesla charger. I've seen some (cheaper) inverters chuck hissy fits due to that.
I have tried to charge a car with an inverter connected to a battery, and it didn't work. It was complaining about faulty earth!!! So I connected the earth to N inside the inverter, and everything works fine now.
The tesla is probably measuring the resistance between its input E-N, and that small burst of current is freaking out the Seal as it things it is an E-N fault
2 things. Make a lead (mini extension cord) with the Neutral and Earth bonded. Secondly keep a small load of like 100W on the BYD to stop the inverter going to sleep.
The BYD might have protection to avoid powering into damaged loads, like a short circuit. The Tesla could be doing weird things to guess the power available from the supply and that is triggering the BYD safety systems. Maybe try with a "dumb" load, like a heater or a toaster or a hair dryer.
Great video. I've learn alot from your videos. I wanna ask you as the owner of Tesla S and BYD Seal. Which car you find it more entertaining to drive? But I've seen Atto3 able to charge another EV car but havent seen charging to Tesla.
I successfully charged my 2012 Leaf from my Atto 3 with my MIDA brand evse set at 6A. Took a couple of attempts and I don't remember what sequence worked. But the BYD EVSE would not do it.
Hi Paul A bit of an off topic question, have you find or know if there is a way to keep the tailamps on when the car is running Kind of like a day running lights at the back like most of European cars do
I've had a lot of problems charging my MG this winter. It would just report charge failure 95% of the times I plugged it in. Eventually I found out with the help of the support people who installed my charge point that it was because the load balancer was doing it's job. Because we were heating the house it balanced the output of the charge point to below 6A, and apparently the car needs at least 6A to start charging. So in your case maybe 10A was too much but 5A was too little?
It’s an excellent thing to do, as you never know when that might have been needed. A fail at least lets you know its not possible. Would it need to be at higher than 10A to give enough shunt in transfering energy?
Maybe you can try to keep the lamp switched on and right afterwards plug in the Tesla charger into the other socket? So you have a constant power draw.
Just to add to the comments, I tried a 15A V2L adapter with a charger plug for the MG4. The charger showed a fault light. The Seal didn’t even get to report that there was power being drawn. Tried the BYD charger plug also. Same outcome. Pretty disappointing. I’m sure I saw another video with an Atto charging another Atto this way.
Have you got a scope Paul? I would of expected the inverter is pumping out not a nice sine wave IMO, with solar inverters they do checks prior to energisation. Look at how boats electrics are wired and you may find a solution.
@@TallPaulTech just as you like to nerd out doing packet capture, I like to do the same with my signals using a scope. Gives a good visual with what you're playing with.
@@TradieTrev Exactly, I agree. I used it on the car amp to see the pulse data that feeds it from the factory head unit. I'd like to pull it apart (or one from a wreck) to get the decoder out so I don't have to run the whole factory amp for next to nothing.
As others have said it may be an earth/grounding issue. My bigger concern with byd/tesla compatibility is byd not being able to use superchargers (UK). Mrs is disabled and would prefer her to stick to hassle free public charging with managable cables. Also means more expensive charging (tesla can be less than half the price of other networks), and drags me and my polestar away from tesla too if we take all the kids out in 2 cars.
It's the opposite in Australia, Tesla is generally more expensive chargers, and the upstarts are cheaper. Pretty sure Tesla is opening up access world wide to their network
Talked to the Supercharger installation team to find if the new Supercharger at Stawell was going to be open to non-Teslas, Said hopefully not for a long time. They HATE when BYDs trip the charger as someone has to drive from Melbourne to reset the unit (Teslas never trip the units). Reset could be done remote but safety and liabilty etc.
@tararat they don't even initialise so I don't see how they manage to trip them. I tried on a v4 though in the uk. The only superchargers I would use happen to be public. Apparently the issue with byd and mg is different interpretation of the communication protocols. I won't consider a seal until this is resolved as tesla chargers are half the price of other networks and vastly more reliable.
Not a stupid test mate - this would be a legitimate use as nore EV owners run out of juice. My theory - the tesla draws an initial surge that the BYD doesn't like, regardless of what youve limited it to. Just try some hungry appliances eg. Kettle or vacuum cleaner instead
They are not friends, they will not exchange anything between each other, just be careful, when you go to sleep the doors will fly open and hit each other.
It's kinda funny to see one electric car charging another but it could have some useful applications i.e one car rescuing another thats ran out of charge. I'm curious to find out why it didn't work.
TBH parking reverse is beneficial for ICE cars so you can easily work on it or rescue it if needed. Other than that, what's the matter? You're just doing the work of reversing your car at the end of your trip rather than at the start of it. And arguably for electric cars it might be better to park forward so that your charge cable isn't dangling in the front of your garage where you'd likely walk through to get to other shit in your garage.
Wild stab in the dark guess: It wouldn’t surprise me if there’s some sort of data communication going on from the Tesla charger that the BYD seal is picking up on and it’s like “Competitor product, nope!!”. I wonder if you put an extension lead or something else between the BYD extension lead and the charger to prevent that from happening and see if the behaviour changes.
Have you tried plugging the lamp into the second socket as an indicator to see of the Tesla is tripping some protection on the BYD? If it's tripping the light should go out. @@TallPaulTech
