Why does the BAIC EU5 charge slowly after a system update?
3 Answers
This is because the new system reduces the charging current to ensure safety, effectively turning fast charging into slow charging. Here are some precautions regarding electric vehicle charging: 1. Master the correct charging time: Pure electric vehicles take longer to replenish energy. If you choose a home charging pile, it takes nearly 8 hours to fully charge, while a fast charging pile takes about 40 minutes to reach 80% charge. Develop the habit of charging frequently and avoid waiting until the battery is too low. 2. Avoid over-discharging the battery: Over-discharging can reduce its lifespan. Although the battery pack is designed with a protection system, frequently driving the car until the red light comes on will definitely affect the battery pack's lifespan.
I've been driving the BAIC EU5 for a while, and slower charging after system updates is quite common. The new software might have increased the battery protection level, deliberately limiting fast charging to prevent overheating and battery lifespan damage, which is perfectly normal. Check the charging power options in the settings menu—sometimes updates reset it to eco mode. Also, the upgraded temperature control algorithm is more sensitive, actively reducing speed to protect the battery in hot or cold weather. I suggest trying charging at different times multiple times and recording the time and speed changes. Rebooting the infotainment system can temporarily fix software lag issues. If the slow charging persists, contact the 4S shop for a system diagnosis—maybe a patch download will solve it. Don't worry, it's not a hardware failure but usually a side effect of minor software adjustments.
From a technical perspective, the slower charging after the system update is most likely due to optimization of the BMS (Battery Management System) algorithm. BAIC may have enhanced temperature monitoring and charge/discharge limits, resulting in reduced peak power. Another possible reason could be an update to the charging protocol, causing incompatibility with certain charging piles. Check the maximum charging current setting in the vehicle settings, as post-update defaults sometimes lower this value. Battery condition also plays a role—aging or environmental factors may now be factored into the new algorithm. Try testing the speed at a different charging station, such as a DC fast charger. If the issue persists, perform a soft reset of the infotainment system or check for any subsequent OTA updates that might fix it. There's no need to rush repairs; observe for a few days to rule out temporary interference.
