The above video explains the best way to store a lithium battery if you are not going to be using it for a period of time. This may be during the winter or in the summer for people only using their batteries for ice fishing. Below is a brief overview of this video. 

1) Store your battery above 50% capacity. If you have Bluetooth this is easy to figure out. Without Bluetooth here is a good voltage for storage. 

• 12.8V LiFePO4 - 13.3V
• 24V LiFePO4 - 26.6V
• 36V LiFePO4 - 39.9V
• 14.8V NMC - 15V

2) Never leave electronics or trolling motors attached to the batteries in storage. All devices connected to the battery will have a parasitic draw. Devices left attached to the battery will draw power when not in use. This can deplete a battery over time or even cause battery failure if stored fully depleted. 

3) Charge every 3-6 months. We encourage a battery sitting for 3 months to be placed on a charge for a short period of time. Try to never go longer than 6 months without a charge or use. 

4) Storage Temperatures: As with any battery, you want to make sure you store you batteries in temperatures between 40-80 Degrees. Lithium batteries are able to handle a wider temperature range than other batteries, but for proper long term storage and life expectancy, 40-80 degrees in a dry environment is the most ideal.