BYD owner gets stranded twice with 15% showing, and the fix may be a full charge

A Reddit post describing a 2022 BYD Tang owner’s experience highlighted a scenario where the electric SUV shut down twice even though the dashboard still showed charge. According to the account, the vehicle powered down two times within two months and remained stranded despite the battery indicator reading about 15% when the incidents occurred. The car was at a dealer for roughly a week, and service personnel did not find a fault, instead suggesting the owner’s charging habits could be a factor. Commenters focused on BYD’s use of lithium iron phosphate (LFP) batteries, arguing that occasional charging to 100% can help battery calibration and ensure the system’s “0%” reading is accurate. The article notes that an uncalibrated gauge can increase the risk of breakdowns, towing, diagnostic costs, and delays, particularly as more automakers adopt LFP packs.