High Voltage Battery Information
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.
There is no advantage to waiting until the Battery’s level is low before charging. In fact, the Battery performs best when charged regularly.
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, 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.
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 approximately 1% per day, though the discharge rate may vary depending on environmental factors (such as cold weather), vehicle configuration, and your selected settings on the touchscreen. Situations can arise in which you must leave Model Y unplugged for an extended period of time (for example, at an airport when traveling). In these situations, keep the 1% in mind to ensure that you leave the Battery with a sufficient charge level. For example, over a two week period (14 days), the Battery may discharge by approximately 14%.
Discharging the Battery to 0% may result in damage to vehicle components. To protect against a complete discharge, Model Y enters a low-power consumption mode when the displayed charge level drops to approximately 0%. In this mode, the Battery stops supporting the onboard electronics and auxiliary low voltage battery. Once this low-power consumption mode is active, immediately plug in Model Y to prevent a jump start and low voltage battery replacement.
Tips to Maximize High Voltage Battery Health
The Battery of Model Y naturally degrades over time and with energy use. As the Battery degrades, the maximum driving range available to Model Y when fully charged can gradually reduce.
- Charge in ways that protect the battery. Example:
- Charge at Level 1 or Level 2 (e.g. wall outlets or Tesla Wall Chargers) whenever possible. Save the Supercharging for road trips or long drives.
- For vehicles with a recommended daily charge limit of 80%, keep your daily charge limit at about 80. Save 100% for those times when you've got a long drive ahead of you. See Charge Settings.
- Charge more frequently. Waiting until the Battery is low to charge can strain the Battery over time.
- Avoid leaving the Battery at or near 0% or 100% for long periods of time whenever possible.
- When you store Model Y for long periods of time, leave the Battery at around 50% charge and keep it plugged in if possible. Use the charge settings to maintain the 50% level.
- Reduce energy consumption from
these sources while the vehicle is not driving and not charging:
- Sentry Mode
- Devices using USB ports and outlets
- Climate controls, such as Dog Mode, Camp Mode, Cabin Overheat Protection, and Keep Climate On
- Preconditioning (when unplugged)
- Standby Mode for Summon (if equipped)
- Infotainment system, such as gaming or video and music streaming.
- Change the way you use vehicle features when the Model Y is parked. Example:
- Configure Sentry Mode to turn off in safe locations, such as Home, Work, or Favorite Places.
- Precondition the vehicle when plugged in. Use Scheduled Precondition and leave on time when possible.
- Park in the shade on hot days when using climate features or Cabin Overheat Protection.
- Wait until the vehicle is plugged in to use the infotainment system to stream videos or play games.
If you are unable to follow any tips and strategies that can extend the lifespan of your Battery, your Battery can still be covered under the terms of your warranty. For more information, see: https://www.tesla.com/support/vehicle-warranty
Temperature Limits
For better long-term performance, avoid exposing Model Y to ambient temperatures above 140° F (60° C) or below -22° F (-30° C) for more than 24 hours at a time.
Energy Saving Feature
Model Y has an energy-saving feature that reduces the amount of energy being consumed by the displays when Model Y is not in use. On newer vehicles, this feature is automated to provide an optimal level of energy saving. However, on older vehicles, you can control the amount of energy being consumed by the displays by touching . For more information on maximizing range and saving energy, see Getting Maximum Range.
Submerged Vehicle
As with any vehicle, if your Tesla has been exposed to flooding, extreme weather events or has otherwise been submerged in water (especially in salt water), treat it as if it’s been in an accident. See Submerged Vehicle Guidance for more information.