How Often Should Tesla Batteries Be Replaced?
2 Answers
Tesla batteries typically need replacement every 5 years. Tesla uses 18650 batteries, whose lifespan is calculated based on charge and discharge cycles, approximately 1000 cycles. If charged every 2 days, this translates to about 2000 days of usage, but the actual lifespan depends on the vehicle's specific usage conditions. Relevant information about automotive batteries is as follows: 1. Introduction: Automotive batteries, also known as storage batteries, are a type of battery that works by converting chemical energy into electrical energy. Typically, the term 'battery' refers to lead-acid batteries. These are primarily made from lead and its oxides, with a sulfuric acid solution as the electrolyte. 2. Working Principle: They use lead plates filled with sponge lead as the negative electrode, lead plates filled with lead dioxide as the positive electrode, and a 22-28% dilute sulfuric acid solution as the electrolyte. During charging, electrical energy is converted into chemical energy, and during discharging, chemical energy is converted back into electrical energy.
I specifically asked a technician at the Tesla service center last time, and he told me that the Model 3's battery pack typically has a design lifespan of around 8 years or 160,000 kilometers. Nowadays, many people maintain over 90% battery health even after five or six years of use! Just be careful not to frequently drain the battery below 10% or charge it to 100%, especially for NMC (Nickel Manganese Cobalt) lithium batteries. I once met a ride-hailing driver who covered 300,000 kilometers in three years with only 12% degradation, so there's no need to worry about sudden failure during daily use. If a replacement is truly needed, the official battery pack costs approximately 100,000 to 150,000 RMB, but the upgraded 4680 battery is said to have doubled the cycle life.
