What type of battery does Tesla use?

[OLeilani]

Tesla uses ternary lithium-ion batteries, which feature cathodes made from ternary materials. Ternary materials refer to nickel, cobalt, and manganese, though some ternary lithium-ion batteries may also use nickel, cobalt, and aluminum for the cathode. Most pure electric vehicles utilize ternary lithium-ion batteries. Tesla is an American electric vehicle and energy company that manufactures and sells electric cars, solar panels, and energy storage products. Its automotive lineup includes the Tesla Roadster, Tesla Model S, Tesla Model X, Project D, and Tesla Model S P85D.

[DelJosiah]

After driving a Tesla for so many years, I've noticed that the batteries basically fall into two categories. Most high-end models like the Model S/X use ternary lithium batteries, which are cylindrical and come in sections. Early models like the 18650 resemble enlarged versions of AA batteries, while the newer 4680 batteries are thicker. Mid-to-low-end models, such as the rear-wheel-drive versions of the domestic Model 3/Y, use lithium iron phosphate (LFP) batteries, which are square-shaped battery packs produced by CATL. Both types have their advantages: ternary lithium batteries offer solid range in winter but are sensitive to overheating, while LFP batteries are cheaper and safer but suffer in cold temperatures. Honestly, what we should care about most in daily driving is not letting the battery level stay below 20% for long periods, especially since ternary lithium batteries are more vulnerable. There’s a guy in our underground parking who always drives his car until it’s completely dead, and after three years, his battery health dropped to 85%.

[DiJulianna]

Anyone who has disassembled a Tesla battery pack knows its internal structure is quite intricate. The early 18650 cells, developed in collaboration with Panasonic, were about the thickness of a pencil, with seven to eight thousand cells connected in complex series and parallel configurations, and cooling pipes coiled like a capillary network. Now, Tesla produces its own 4680 cells, featuring a tabless design that reduces resistance, cutting heat generation by 15% while increasing range by 16%. The most impressive part is the battery management system, which can keep the temperature difference among thousands of cells within 2 degrees. Last time I helped a friend test a Model 3, despite being ten years old, the battery health was still at 92%, all thanks to this precise temperature control. To me, Tesla's core competency isn't the motor—it's this battery management algorithm.

[StSteven]

As a Model 3 owner, I specifically checked the battery certification when taking delivery. The Long Range version uses LG's NMC lithium-ion battery, while the Standard Range switched to CATL's LFP battery. The actual driving difference is quite noticeable: the NMC battery can still cover 400 km at -10°C in winter, whereas the LFP battery's range drops by 30%. However, LFP batteries are more stable in summer and can be fast-charged to 100% without damaging the battery. Once at a charging station, I met an uncle driving an older Model S with 18650 battery packs—his car had only 12% degradation after 320,000 km, which completely changed my perception of battery lifespan. For daily use, I recommend LFP battery owners perform a full charge calibration monthly for more accurate range display.

[GideonLynn]

Last month's visit to the Tesla factory revealed their highly flexible battery strategy. The Shanghai plant uses BYD's Blade batteries for the Model Y rear-wheel-drive version, while the Performance variant employs Panasonic's 21700 cells. The latest news is that the Nevada factory has begun mass-producing 4680 batteries using dry electrode technology, eliminating toxic solvents - reducing costs by 54% while increasing energy density. During maintenance, we noticed a detail: the 4680 battery pack eliminates the module structure, with cooling plates directly integrated into the battery casing for higher thermal efficiency. Regarding drawbacks, NMC lithium batteries are indeed more delicate - prolonged supercharging or full discharges accelerate degradation, so it's recommended to treat 90% charge as full capacity.