A locked Mercedes EQS battery won't even let you repair it. One cell dies, the slave BMS latches the whole pack, throws P1C80 and kills the high voltage — and here's the trap: you can't just clear it, the fault is burned into the BMS memory and no diagnostic tool on this planet can wipe it. Dealer answer? New battery. Thirty grand. For one dead cell. That's exactly where we come in.
We cracked it the only way that actually works — read both slave BMS EEPROMs byte by byte, decode the stored faults, map the internal resistance of all 108 cells, and watch the failure replay itself: cell 12 in module I collapsing from 3.8V down to 1.5V under load while the BMS counted down to lockout. No scanner shows you that. We pull it straight out of the chip — and we even caught the next cells starting to go before they strand the car again.
And here's the clever bit nobody talks about — this pack is really two batteries in one. Two 400V strings running in parallel, each on its own BMS. When the right string went bad, the system did exactly what it was built to do: it cut the faulty right side off from its own control and kept the car running on the left string alone. The car literally drove on half its battery, limping along on the healthy left side while the dead right one sat isolated — until the left slowly drained itself down to empty. That's redundancy doing its job, and most people never even know it happened.
And get this straight — the lockout is wiped while EVERY byte of the original factory calibration stays untouched. No donor BMS. No swapped-in module dragging someone else's data into your pack. Nothing compromised. The battery keeps its own brain, its own calibration, its own identity — just without the fault. That's the difference between a real fix and a bodge.
Full breakdown, pictures and part numbers at the bottom of the article:
EQS V297 · slave BMS M95M02 + TC277T - Cells CATL
TOP A789 900 2801 · BOTTOM A789 900 9800
Faults cleared: P1C80 · P1540 · P0F18 · P0F64 · P0B63 · P0B64 · P0B67 · U357D
Software side is done — the lockout is beaten, calibration intact. Now we are waiting brand new modules from Poland to install into battery and finally run the car without any locking faults and with more range.
Sustainablity of EV in comparison with ICE is measured in repairability!
Full article: https://t.co/dOLFfb0jBQ
UX latency is the most frustrating (lack of) advancement in computing over the last ~50 years.
IBM, way back in the 80s, found that user productivity shot up *exponentially* as system response time dropped. The "Doherty Threshold" was defined as ~400 milliseconds; the maximum amount of tolerable UX latency before interrupting user flow state.
It's unbelievable how many modern operating systems (*cough* win11) violate this threshold constantly.
Literally all you need to do as a Dev is pay attention. Add a "Doherty Threshold" to your test suite. There's so many different profiling tools, and especially with how good models are, really no excuse. Sure, some stalls are unavoidable, but that's when you pull out other UX tricks to at least give the illusion of responsiveness.
Crazy how much vintage computing hardware feels immeasurably more responsive despite having thousands of times less overall performance.
@TobiM@markmueller1979 Lies einfach was Mark so beruflich macht, dann kommste drauf, dass für sein Geschäftsmodell der Einsatz von AI Coding ideal ist.
@Hosenmaus1@Levikus66 Was denn hier wieder los? Bild wieder den Namen Habeck gepostet und alle spinnen wieder rum? Komm Hisenmäuschen, stell mal deine Lösung für die kommenden 5 Jahre vor!
@OLBJAN VMware admin grinst und packt 2. if an die WindowsVM mit 192.168.1.0/24
mal @dr_boese fragen ob man irgendwen/was wegen vorsätzlicher Blödheit auf Schadenersatz verklagen kann. Wer baut son Scheiss?
@boersenbelfort Mieter beschwert sich das Fernbedienung fürs Garagentor nicht mehr funktioniert. Vor Ort Termin, schaue mir die mir völlig unbekannte „Fernbedienung“ genauer an. Warum ist da ein Display mit Werten in ‰? War ein Alkotester😂
@nycpa Everyone has a right to participate in sports. In the proper sex category. It’s very simple. Sports is not about identities or feelings- it’s about rules. It’s about fairness.
Ok?
Ist doch klar, dass abgeschrieben Kernkraftwerke günstigen Strom produzieren, der Gesetzgeber hat sich aber 2011 sehenden Auges gegen die weitere Nutzung entschieden, weil er die Risiken der Kernkraft höher bewertet hat als den wirtschaftlichen Vorteil. So einfach ist das.