What is my BLi battery's shelf life and how should I store it for a longer period of time?

Husqvarna BLi batteries have a shelf life of 18 months. This means you can have them on a shelf for this period of time without risking deep discharge of the BLi batteries. So make sure that your BLi batteries are always charged to about 50% during the shelf life period.

To reach 50% state of charge, discharge the battery until only two state of charge LEDs are left or put a discharged battery in a battery charger and disconnect it from the charger when the third state of charge LED starts to blink.

If you need to store your BLi batteries for a longer period of time, you should check the state of charge from time to time and charge the BLi batteries if needed to avoid them becoming deeply discharged.