But why a drain out 12v battery will trigger emergency brake?
CCP EV emergency brake on highway, almost accident, Guess the brand
CCP EV emergency brake on highway, almost accident, Guess the brand
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May 6 2025, 10:34 AM
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But why a drain out 12v battery will trigger emergency brake?
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May 6 2025, 10:57 AM
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QUOTE(DogeGamingPRO @ May 6 2025, 10:37 AM) Not emergency brake, just motor lose power and cuz EV motor so instead of cruise it just decelerates, but probably to the driver felt like emergency brake cuz stopped abruptly and can’t move But 12v is only for backup if main battery is not functioning The 12v controls the connection between the main battery and the motor, so when 12v gone then motor also will lose power from main battery During operation , only main battery is use , while 12v battery is being charge Got converter to power all the 12v accessories when car is in operation No way a small 12v battery is responsible for the main operation of an EV during driving This post has been edited by mac_mac21: May 6 2025, 10:58 AM |
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May 6 2025, 11:07 AM
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QUOTE(Roman Catholic @ May 6 2025, 11:01 AM) Didn't someone write earlier that once it's below 20%, it will stop providing power ? Because got converter to power 12vAre you sure that the 12V battery is NOT responsible for the main operation ? Unless the converter is the one that faulty , then power is suck directly from 12v battery , then in the middle of the road 12v battery drain out completely So complete no 12v for entire system This post has been edited by mac_mac21: May 6 2025, 11:09 AM |
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May 6 2025, 11:17 AM
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QUOTE(Roman Catholic @ May 6 2025, 11:12 AM) I thought on the 5 May the SC already determined that it was the fault of the 12V battery. Heck even they identified that on the 2 May itself. Surely if the DC-DC converter was at fault, surely that would be mentioned too no ? May be connection between converter to 12v battery is faulty , but to make it sound sensible to end user , just say 12v battery drain out12v battery have at least 18th month life span even for ICE car with start stop function |
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May 6 2025, 11:29 AM
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QUOTE(DogeGamingPRO @ May 6 2025, 11:21 AM) From the half-ass service by SC mentioned by the OP I won’t trust it 100% lol Of course official statement wont narrow down the specific problem Now escalated to Sime Darby HQ pretty sure end up later will come out with different response Im sure they will use common ICE vehicle problem as a comparison to make sure public understand is just a small matter and case is close No further action |
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May 6 2025, 11:31 AM
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QUOTE(Roman Catholic @ May 6 2025, 11:24 AM) That is correct generally speaking but on the other side of the coin, there are occasion where batteries lasts just about 12 months period only and when check properly, the mileage had far exceeded 2 or 3 times the warrantied mileage. That is why battery companies placed a restriction on vehicles uses for commercial basis. Of course we public will never know unless got internal leak in informationIf it was the connection that was the issue and blame was intentionally placed on the battery, that is deceit and one must be careful because that is slander already, no ? |
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May 6 2025, 12:00 PM
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QUOTE(Boy96 @ May 6 2025, 11:56 AM) After digging thru reddit and seeing similar post Means its the main battery module faulty Seal https://www.reddit.com/r/BYD/s/975nKj0PVn Sealion7 https://www.reddit.com/r/BYD/s/XP53q9uRLE Bukan masalah 12v, but masalah with the high voltage system that links the electric motor. Ofcourse the car wont move anymore once stopped, but the emergency braking part doesnt happen But blame it on the small 12v lead acid battery |
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May 6 2025, 12:02 PM
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May 6 2025, 12:04 PM
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QUOTE(yhtan @ May 6 2025, 12:01 PM) Yes, i read on the manual and it stated there. EV owner need to stop thinking 20% battery = 20% fuel in tank petrol It also stated that the LFP battery is recommended to full charge at least once per week. I guess EV owner has to prevent its battery drop below 20% for safety precautious |
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May 6 2025, 12:33 PM
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