Heating assemblies and systems for rechargeable batteries

A heating assembly for one or more rechargeable batteries, the heating assembly comprising:

• a flexible heating element positionable about the one or more rechargeable batteries and configured to receive power from a charger operable for charging the one or more rechargeable batteries;
• a temperature sensor configured to sense a temperature adjacent the one or more rechargeable batteries, the temperature sensor adjacent the flexible heating element;
• a control circuit configured to receive the sensed temperature from the temperature sensor and connect the charger to the flexible heating element for allowing power to flow from the charger to the flexible heating element in response to the sensed temperature adjacent the one or more rechargeable batteries falling below a defined threshold temperature;
• and
• at least one heat spreader adjacent the flexible heating element.

A heating assembly for one or more rechargeable batteries, the heating assembly comprising:

• a flexible heating element positionable about the one or more rechargeable batteries and configured to receive power from a charger operable for charging the one or more rechargeable batteries;
• a temperature sensor configured to sense a temperature adjacent the one or more rechargeable batteries, the temperature sensor adjacent the flexible heating element;
• and
• a control circuit configured to receive the sensed temperature from the temperature sensor and connect the charger to the flexible heating element for allowing power to flow from the charger to the flexible heating element in response to the sensed temperature adjacent the one or more rechargeable batteries falling below a defined threshold temperature;
• wherein the temperature sensor includes a surface mount device.

A heating assembly for one or more rechargeable batteries, the heating assembly comprising:

• a flexible heating element positionable about the one or more rechargeable batteries and configured to receive power from a charger operable for charging the one or more rechargeable batteries;
• a temperature sensor configured to sense a temperature adjacent the one or more rechargeable batteries, the temperature sensor adjacent the flexible heating element;
• and
• a control circuit configured to receive the sensed temperature from the temperature sensor and connect the charger to the flexible heating element for allowing power to flow from the charger to the flexible heating element in response to the sensed temperature adjacent the one or more rechargeable batteries falling below a defined threshold temperature;
• wherein:
• the flexible heating element includes a first side, a second side opposing the first side, and a center portion between the first side and the second side;
• and
• the temperature sensor is adjacent the center portion of the flexible heating element.

A heating assembly for one or more rechargeable batteries, the heating assembly comprising:

• a flexible heating element positionable about the one or more rechargeable batteries and configured to receive power from a charger operable for charging the one or more rechargeable batteries;
• a temperature sensor configured to sense a temperature adjacent the one or more rechargeable batteries, the temperature sensor adjacent the flexible heating element;
• and
• a control circuit configured to receive the sensed temperature from the temperature sensor and connect the charger to the flexible heating element for allowing power to flow from the charger to the flexible heating element in response to the sensed temperature adjacent the one or more rechargeable batteries falling below a defined threshold temperature;
• wherein the temperature sensor includes a protective coating.

A system comprising:

• one or more rechargeable batteries;
• a flexible heating element positionable about the one or more rechargeable batteries;
• a temperature sensor configured to sense a temperature adjacent the one or more rechargeable batteries, the temperature sensor adjacent the flexible heating element;
• a charger configured to provide power to the one or more rechargeable batteries and the flexible heating element;
• a control circuit configured to receive the sensed temperature from the temperature sensor and connect the charger to the flexible heating element to thereby allow power to flow from the charger to the flexible heating element in response to the sensed temperature adjacent the one or more rechargeable batteries falling below a defined threshold temperature;
• wherein:
• the system further comprises at least one heat spreader adjacent to one side of the flexible heating element;
• and/or
• the system further comprises case for retaining the control circuit, and the control circuit is potted in the case;
• and/or
• the temperature sensor includes a surface mount device;
• and/or
• the defined threshold temperature is about negative five degrees Celsius, about zero degrees Celsius, or between about negative five degrees Celsius and about zero degrees Celsius.

A system comprising:

• one or more rechargeable batteries;
• a flexible heating element positionable about the one or more rechargeable batteries;
• a temperature sensor configured to sense a temperature adjacent the one or more rechargeable batteries, the temperature sensor adjacent the flexible heating element;
• a charger configured to provide power to the one or more rechargeable batteries and the flexible heating element;
• a control circuit configured to receive the sensed temperature from the temperature sensor and connect the charger to the flexible heating element to thereby allow power to flow from the charger to the flexible heating element in response to the sensed temperature adjacent the one or more rechargeable batteries falling below a defined threshold temperature;
• wherein:
• the flexible heating element is a first flexible heating element;
• the one or more rechargeable batteries is a first set of rechargeable batteries;
• the system further comprises a second flexible heating element positionable about a second set of rechargeable batteries;
• and
• the control circuit is configured to connect the charger to the second flexible heating element to thereby allow power to flow from the charger to the second flexible heating element in response to the sensed temperature falling below the defined threshold temperature.