Tesla Model Y: About the High Voltage Battery
Model Y has one of the most sophisticated battery systems in the world. The most important way to preserve the high voltage Battery is to LEAVE YOUR VEHICLE PLUGGED IN when you are not using it. This is particularly important if you are not planning to drive Model Y for several weeks.
NOTE: When left idle and unplugged, your vehicle periodically uses energy from the Battery for system tests and recharging the low voltage battery when necessary.
There is no advantage to waiting until the Battery's level is low before charging. In fact, the Battery performs best when charged regularly.
NOTE: If you allow the Battery to discharge to 0%, other components may become damaged or require replacement (for example, the low voltage battery). In these cases, you are responsible for repair and/or transporting expenses. Discharge-related expenses are not covered by the warranty or under the Roadside Assistance policy.
The peak charging rate of the Battery may decrease slightly after a large number of DC Fast Charging sessions, such as those at Superchargers. To ensure maximum driving range and Battery safety, the Battery charge rate is decreased when the Battery is too cold, when the Battery's charge is nearly full, and when the Battery conditions change with usage and age. These changes in the condition of the Battery are driven by battery physics and may increase the total Supercharging duration by a few minutes over time. You can minimize the amount of charge time by using Trip Planner (if available in your market region) to warm the Battery while driving to a Supercharger. See Trip Planner for more information.
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Battery Care
Never allow the Battery to fully discharge. Even when
Model Y is not being driven, its Battery discharges very
slowly to power the onboard electronics. The Battery
can discharge at a rate of approx
Lithium Iron Phosphate Batteries
Some vehicles are equipped with a Lithium Iron Phosphate (LFP) Battery. To
determine if your vehicle has an LFP Battery, navigate to Controls > Software >
Additional Vehicle Information.
If yo
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Regenerative Braking
Whenever Model Y is moving and your foot is off the
accelerator, regenerative braking slows down the vehicle
and feeds any surplus power back to the Battery. By
anticipating your stops and reducing or removing
pressure from the accelerator pedal to slow down, you
can take advantage of regenerat
Charging Status
Charging status displays on the instrument panel when the charge port door is
open.
Time remaining: The estimated time remaining to charge to your set limit
(see Charge Settings).
NOTE: When charging to 100%, the vehicle may continue to charge with
low power when charging is displayed as
