For models equipped with a 40 kWh battery

CAUTION

The Li-ion battery warmer system is designed to maintain optimal battery health; however, it will not operate if the available battery charge is approximately 15% or less and the vehicle is not connected to a charging source. To protect the battery and prevent freezing in environments where temperatures may drop below −1ºF (−17ºC), it is strongly recommended that you keep your Nissan Leaf connected to a charger whenever possible.

The Li-ion battery warmer is a sophisticated component of the Nissan Leaf that works to prevent the battery from freezing and mitigates significant output power reductions during cold weather operations. This system activates automatically when the temperature of the Li-ion battery reaches approximately −1ºF (−17ºC) or lower, and it will remain active until the battery temperature climbs to approximately 14ºF (−10ºC) or higher, at which point it automatically shuts off.

The energy source for the warmer varies depending on the vehicle's state. When the charger is connected, the warmer draws electrical power from the external source, preserving the battery's energy. Conversely, when the charger is disconnected, the system draws necessary power directly from the Li-ion battery itself to maintain temperature stability.

NOTE:

• If you are parking your Nissan Leaf in areas where temperatures may fall below −1ºF (−17ºC), always connect the charging cable and ensure the power switch is in the OFF position. This configuration allows the warmer to operate using external grid power, effectively keeping the battery conditioned without depleting its internal charge.
• The charging status indicator lights on the dashboard will illuminate in a specific pattern whenever the Li-ion battery warmer is in operation.

  Please be aware that these status lights utilize the same pattern to signal other operations, such as 12-volt battery charging, active Climate Control Timer settings, or Remote Climate Control engagement (on models equipped with a Navigation System). The indicator pattern remains consistent even if the battery warmer is running simultaneously with these other features.

  For further clarification on these visual signals, please refer to the section titled "Charging status indicator lights."

• The Li-ion battery warmer will utilize the battery's own power to operate, even if the vehicle is plugged into a charger, under the following specific conditions:
  • When the Nissan Leaf power switch is in the ON position.
  • When there is a lack of electrical supply to the external charging equipment.
• If the warmer is already running on external power, it will continue to utilize that external source even if you transition the power switch to the ON position.
• Operating the battery warmer during cold-weather driving (at temperatures of −1ºF (−17ºC) or colder) will result in a reduction of the total driving range. You may find that your Nissan Leaf requires charging more frequently than it would under milder temperature conditions.
• Please be advised that the Li-ion battery will require a longer duration to reach a full charge whenever the warmer is actively running.
• The predicted charging time estimates displayed on your dashboard meter and the navigation system (if equipped) will increase to account for the energy usage of the battery warmer.
• Performance of the cabin climate control system may be reduced when using the Climate Control Timer or Remote Climate Control (for models with a Navigation System) while the Li-ion battery warmer is simultaneously operational.
• The battery may not achieve the expected charge level via the charging timer if the Li-ion battery warmer is consuming power during the scheduled charge window.

For models equipped with a 60 kWh battery

CAUTION

The Li-ion battery warmer system is designed to optimize performance in cold climates, but it will not engage if the normal charging cable is not properly connected to the vehicle. To protect the integrity of the Li-ion battery and prevent the risk of freezing, it is essential that you do not leave your Nissan Leaf in environments where temperatures may drop below −4ºF (−20ºC) unless the vehicle is securely connected to a charger.

The specialized Li-ion battery warmer in your Nissan Leaf is engineered to maintain the battery at a safe operating temperature during extreme cold. The system is fully automated: it activates when the internal Li-ion battery temperature reaches approximately −4ºF (−20ºC) or colder, provided the outside ambient temperature is also −11ºF (−24ºC) or lower. Conversely, the warmer will automatically deactivate once the battery temperature warms to approximately 0ºF (−18ºC) or higher, or when the outside ambient temperature rises to approximately −8ºF (−22ºC) or higher.

The system is highly flexible in its energy management. The Li-ion battery warmer operates effectively whenever the normal charging cable is connected to the vehicle, intelligently drawing required electrical power from either an external grid source or, if necessary, utilizing energy from the Li-ion battery pack itself.

NOTE:

• If you are parking your Nissan Leaf in areas where temperatures may fall below −4ºF (−20ºC), always connect the charging cable and ensure the power switch is in the OFF position.

  The system will autonomously manage power distribution, drawing energy from either the connected external charging source or the Li-ion battery based on the remaining charge level to ensure the most efficient conditioning process.

• The charging status indicator lights on the dashboard will illuminate in a specific, consistent pattern whenever the Li-ion battery warmer is actively operating.

  Please note that these same indicator lights are used to signal other active processes, including 12-volt battery charging, Climate Control Timer operations, or Remote Climate Control engagement (on models equipped with a Navigation System). The display pattern will not change if the battery warmer is running simultaneously with any of these secondary features. For a more detailed breakdown of these signals, please refer to the section titled "Charging status indicator lights."

• In certain scenarios, you may notice that the automatic climate control system engages on its own when the Li-ion battery warmer is drawing power from the Li-ion battery. Please be assured that this is a standard operational characteristic and not a malfunction. During this process, you may observe that the interior temperature of the vehicle increases slightly as a byproduct of the system's thermal management.
• The Li-ion battery will undergo an automatic charging cycle whenever the battery warmer is actively drawing energy from an external power source. This ensures that the energy consumed by the warmer is replenished. Please be aware that when the outside temperature drops below −4ºF (−20ºC), the vehicle's onboard systems prioritize thermal stability to maintain the long-term health of your Nissan Leaf battery pack.

• If your vehicle is left in extremely cold conditions for an extended duration, the Li-ion battery warmer may cycle frequently, leading to higher energy consumption from the external power source. If you prefer to keep the warmer inactive, ensure the normal charging cable remains disconnected. However, under these circumstances, it is crucial to avoid leaving your Nissan Leaf in an environment where temperatures may drop below −4ºF (−20ºC) to prevent potential battery issues.
• When the Li-ion battery warmer is already engaged using power from an external source, it will continue to prioritize that external supply even if you transition the power switch to the ON position.
• Should the battery warmer be operating using energy stored within the Li-ion battery, it will cease function if the power switch is set to the ON position. To resume the warming process, simply return the power switch to the OFF position.
• The battery warmer will automatically stop if the charging connector is unplugged from the normal charger while the system is active. To restart the warming process, reconnect the charging cable to your Nissan Leaf; the system will automatically re-engage after an interval of approximately one hour.
• The Li-ion battery warmer will immediately cease operation if a quick charger connector is attached to the vehicle while the warmer is active. To resume standard battery warming, disconnect the quick charger from the vehicle.
• Please be aware that the Li-ion battery will require additional time to reach its target charge level whenever the battery warmer is actively operating, as energy is being shared between thermal management and the charging process.
• The predicted charging time estimates displayed on your instrument meter will increase to account for the energy draw when the Li-ion battery warmer is utilizing power directly from the Li-ion battery.
• If the battery warmer is active, the Climate Control Timer or Remote Climate Control features (available on models with a Navigation System) will be temporarily unavailable. Please note that this is a normal system behavior and not indicative of a vehicle malfunction.
• Similarly, the charging timer or remote charge functions (on models equipped with a Navigation System) will not activate while the Li-ion battery warmer is in operation. This is an intentional design feature and not a system fault.
• Because the Li-ion battery warmer consumes power during its operation, the battery may not reach the expected charge level if you are relying on a scheduled charging timer.
• If the Li-ion battery warmer automatically shuts down due to shifts in internal battery temperature or rising outside ambient temperatures, the vehicle will seamlessly continue the charging process until the Li-ion battery reaches a full state of charge.