San Francisco German Auto Repair

BMW hybrid models are built to deliver strong performance and good fuel economy, switching between electric power and the gasoline engine as conditions change. Over time, though, you might notice the electric assist does not feel as strong, the engine runs more often than it used to, or overall efficiency slips. The high-voltage battery is at the center of that system, and how you maintain and drive the car plays a big role in how long it stays healthy. How BMW Hybrid Batteries Work in Everyday Driving The hybrid battery is made up of many individual cells grouped into modules, all monitored and managed by a control unit. Instead of charging and discharging the full pack every time, the system operates in a preferred state-of-charge window. That controlled range helps protect the battery from the extremes that cause rapid wear. During gentle driving, the hybrid system may use more electric assist to reduce fuel use. Under harder acceleration, the motor and engine w ... read more