Charge before it is empty
Rechargeable 1G and 2G models should be charged with a compatible USB-C cable when the battery is low. Avoid leaving the device connected indefinitely.
What affects battery life?
Longer draws, frequent use, cold temperatures, and blocked airflow can all reduce the time between charges.
Store it correctly
Keep the device upright, dry, and out of direct sunlight. Never charge a damaged or wet device.