BYD C-rayon 7 Surges in Fast Charging Errors 'What Should I Do About Long-distance Driving...'

*This content was translated by AI.

The mid-sized electric SUV "Sealion 7," considered BYD's ambitious work, is engulfed in a series of quality controversies and suspicions of defects immediately after its launch in the global and Korean markets, raising consumers' concerns. In Korea, the problem of fast charging errors has surfaced since the beginning of the full-fledged cold, and more serious safety-related cases have been reported abroad, such as stopping vehicles while driving or failing power control systems.

According to the local electric vehicle community and related industries, complaints among C-rayon 7 car owners launched in Korea in September last year are increasing rapidly that charging is not done properly when using public and private high-speed chargers. There were no problems in the fall season at the beginning of the launch, but charging errors are frequently reported in major fast charging infrastructure such as the Ministry of Environment, CHAEVI, and SK Electronic Link as temperatures drop sharply into winter. In particular, while electric vehicles from other manufacturers charge normally on the same charger, communication errors or charging rejection are repeatedly occurring only on the C-rayon 7 model, which is gaining strength in the analysis that it is a software or hardware compatibility problem on the vehicle side.

Some consumers are raising the possibility that the C-rayon 7's battery conditioning system is not optimized for domestic charging environments, even though preheating in a low-temperature environment is essential due to the nature of lithium iron phosphate (LFP) batteries. Unlike competing models such as Tesla, which automatically preheat the battery when setting up a navigation destination, there is a series of testimony that the C-rayon 7 continues to cause charging errors after preheating, even though it provides manual preheating. As a result, some car owners are giving up long-distance driving due to concerns that charging at rest areas will become impossible during long-distance driving. BYD Korea says it is trying to figure out the cause through consultation with the headquarters, but consumers' distrust is deepening as it has not been able to provide a specific solution or software update schedule.

The situation in the overseas market is even worse. On the global community Reddit and others, cases of power loss and system down while driving the C-rayon 7 are shared and shocking. An overseas car owner said the vehicle suddenly fluctuated with a driving distance of only 200 kilometers after the vehicle was released, and the vehicle stopped completely after repeating acceleration and deceleration. As a result of the service center inspection, the vehicle was reportedly judged to have failed power management due to a defect in the "Power Domain Control" part. This is suspected to be a key flaw in the power system similar to Hyundai Motor Group's ICCU (Integrated Charging Control Unit) defect case.

In addition, the problem of discharging the 12V auxiliary battery was also on the cutting board. It has been reported that the door handle does not work or the system fails due to the discharge of the auxiliary battery despite the new vehicle that has not been delivered. Temporary methods of trying to jump start by pressing the driver's door handle button for more than 3 seconds in an emergency are shared among car owners, but this is not clearly stated in the official manual, adding to the confusion. While acknowledging BYD's hardware technology, many international users criticize the stability of software that controls complex battlefield systems and the speed of post-service (AS) response for failing to keep up with sales volume.

BYD ranks first in the global electric vehicle market with "cost-effectiveness" and "battery technology," but compatibility issues with regional charging infrastructure or reliability issues of core power components, as in the case of the C-rayon 7, can be a fatal blow to the brand image. In particular, since Korea has a high supply rate of fast chargers and a very demanding level of quality demand from consumers, it is widely expected that it will not be easy to settle in the domestic electric vehicle market if the current charging error problem is not resolved as soon as possible. Industry experts are calling for immediate technical supplementation of BYD, emphasizing that the core of EVs is not just distance and price, but stable charging and power management capabilities in various environments.

<© STARNEWS. All rights reserved. No reproduction or redistribution allowed.>

*This content was translated by AI.