
Three years or more. Hybrid vehicle batteries can be broadly categorized into ternary lithium batteries, lithium iron phosphate batteries, and nickel-metal hydride batteries. Below are the detailed descriptions: 1. Ternary Lithium Battery: This type belongs to lithium-ion batteries, with a cycle life of fewer than 1000 charges. 2. Lithium Iron Phosphate Battery: Also a lithium-ion battery, it has a cycle life of around 2000 charges. When used in hybrid vehicles, it can typically last about 10 years or 200,000 kilometers without much issue. 3. Nickel-Metal Hydride Battery: Toyota hybrids have consistently used nickel-metal hydride batteries, which have a lifespan of about 500 charge cycles. Under the condition of shallow charging and discharging, they can achieve up to 1000 cycles. Toyota employs an energy management system to ensure shallow charging and discharging.

Our hybrid car has been running for almost six years, and we just replaced the battery last week. The mechanic said hybrid car batteries come in two types: the large battery that powers the drive motor has a longer lifespan, usually lasting 8 years or 200,000 kilometers; while the small battery responsible for ignition, lights, and other small electronics is similar to regular cars, needing replacement every three to four years. What's particularly important to note is that the hybrid system keeps the battery constantly switching between charging and discharging states, causing it to wear out faster than in pure gasoline cars. This is most noticeable in winter—once when it was below minus ten degrees Celsius, the dashboard suddenly showed an alert, and the test revealed the battery voltage had dropped significantly. The mechanic advised us not to keep the air conditioning or music on for too long when parked and to switch to hybrid mode for charging when the battery level falls below 20%.

Having worked in a repair shop for fifteen years, I've noticed that hybrid vehicle battery issues mostly occur around the fourth year. Although manufacturers claim a lifespan of five to eight years, actual usage habits play a significant role: cars used for frequent short commutes experience faster battery degradation due to daily charge-discharge cycles, while those frequently driven on highways can last two years longer. One Camry Hybrid owner, who only drove three kilometers daily for commuting, had their battery fail in just three and a half years. Newer models now come with a temperature management system for the battery, which preheats it in winter and cools it in summer, extending its lifespan by 30%. However, it's crucial to avoid using high-power equipment when the vehicle is turned off. Last week, a car's small battery was completely drained because of an external air pump.

My colleague's Prius lasted ten years before needing a battery replacement, which is quite exceptional. Typically, the design lifespan of a hybrid's power battery pack (the one that drives the motor) is 8 years or 150,000 kilometers. However, based on actual usage, I've noticed that owners in northern regions generally get one or two years less out of their batteries compared to those in the south—low temperatures are quite damaging to lithium batteries. The dealership recommends an annual battery health check. If the full-charge range drops below 70% of the new car's capacity, it's time to consider a replacement. Out-of-pocket replacement costs around 20,000 yuan, but brands like Toyota now offer lifetime battery warranty policies.


