Interesting! Was that kind of charger actually used to charge in a conversion? Is CAN protocol known?
That would be a usefull addition for wiki...


This is completely different from the Valeo-Siemens version in the PDF. The connectors are different (round metal instead of square orange), there ...

I wrote a private message.

The EME includes a 3.3 kW on-board charger (OBC) labeled “SLA_Power” at the bottom. It has 3+2 chips that perform various measurements. 1 or 2 usually fail when the OBC is destroyed due to overvoltage, and it gives this "false" error. The short circuit is not at B+, and the error description is not ...

The Gen3 OBC input has a thyristor soft-start circuit. If you give it DC and it accidentally turns on, it will immediately smoke with a huge bang from the inrush current surge.

I repair hundreds of these Valeo chargers. If you can arrange for their delivery to Hungary, I will send them back tested in 3-4 days, with a half-year warranty. Although sometimes it goes faster...

For now, I wanted to understand its construction at a basic level and get to the point where the HV system, which was completely disabled due to the collision, would start. The car is already running, so maybe I will start logging this week, but I was not prepared for the fact that I would have to ...

I have been studying the BYD Atto 3 for some time. Brutally modern development, not a Chinese joke. If you are not familiar with CAN buses, don't bother: there are dozens of CAN buses, because instead of a lot of electronics, there are only three "domain controllers" in it: the right, the left and ...

I already have my own diagnostic software for it, which I can use to test it after repairs, but I didn't think that it is customary to write something like this here right away...


I quickly made a screen save. Above in the middle, the Max. Voltage / Max. Current data is returned by the charger ...

I already have my own diagnostic software for it, which I can use to test it after repairs, but I didn't think that it is customary to write something like this here right away...

I know how to fix it, I've already fixed a dozen of them; maybe even more. However, I haven't been able to start it on the desktop yet, it doesn't respond to any LOG. But it is almost certain that it will not even start without the standard Control Pilot (CP) signal.

(It was manufactured here in ...

Well guess what, the autor is on the forum here already :D
"Kutato72"


Thanks for the mention, I am indeed here too, although my English is a bit weak. My writings about Kona are here in PDF format:

Battery: https://varsanyipeter.hu/hyundai_kona_akku.pdf
Inverter/OBC/DC-DC: https ...

I have already repaired dozens of batteries, so I can safely say: if the Volvo BMS sees the battery as bad, then it really is bad. You can clone the EEPROM content from a good battery to a bad one, but you won't get very far with it. The proven solution is to measure the capacity of all 10 modules ...

Hi folks.
I came across some kia 64kW modules. They have neat cell wires comming from the module sides. There is a circuit on the sides and i am wondering if those wires are fused? I would like to use this modules with my active BMS and it balances at 1A. Too much?


The cell terminals are ...

I have been doing what you just described here for five years. Will you have a job with it, though I don't know if it's any use? I have already written a lot about this topic to my clients, but unfortunately in Hungarian. I'm copying a material made by Google translate, so maybe the translation is ...

I repair Volvo V60 PHEVs, and unfortunately recently I come across more and more batteries with cell defects or significantly degraded batteries. Unfortunately, I often see working batteries at unrealistically high prices on the Internet. Does anyone have any tips on where to get defective batteries ...

The elongated version was produced here in Hungary, and it was also included in the Volvo XC90, redesigned and with different software. I know how to fix it, but not how to program it yet, even though I tried it for a while.

I just wrote my own code to make it work. For balancing, the 0x1C control packet must be sent maximum every 2000 msec. The authorization signal is the 0x22 packet, which must be sent every 450 msec at most. But the balancing itself is started by the query packet 0x17, but in pulses, so it is worth ...

If you want to listen to EME’s internal communications with the DC/DC converter and on-board charger, prepare pizzas and lots of cola for several days.

- Works with 16-bit SPI transmission with 500 kHz clock
- Transmits 80 words in a packet (i.e. 1280 bits)
- Alternately sends a packet to the DC/DC ...

There are also fuses at the other end. He just couldn't fit a single photo.

Fuses. 1206 size SMD fuses in the LG Chem version.

They carry the end cells in duplicate because the BMS receives its supply voltage from one and measures the cell with the other. Thus, the jumps in the current consumption of the BMS do not interfere with the measurement. This solution is called the “Kelvin Connection”.

https://www.voltech.com ...

The Samsung SDI BMU panel has the MAX17841 driver chip, while the Jaguar / Range Rover battery has the MAX17823B BMS chip. In principle, they can talk to each other - but of course the factory software is not suitable for this.

For the MAX17845, both the pinout and the basic protocol are the same as the MAX17823B, but the self-diagnostic is different.

I am repairing these in Hungary. I'll fix two out of two for you if you figure out how to get here and get back to you.

The three types of battery modules have a total of eight (!) different connectors. Their illogical connection is a nightmare. The MAX17845 chip built into CMUs is top secret, with no datasheet, not a programming manual. And it uses an isoSPI bus anyway, not a CAN bus.