Yes, It's true most lithium batteries do not perform as well as AGM or other types of SLA batteries in cold temperatures.
The good news is that we have some very high quality batteries which are more reliable and dependable than some of the other lithium brands out there.
In cold weather (-20c or lower) temperatures here's some tips to store your battery and keep it in top shape during the cold season:
Clean your battery: The first thing you will want to do is clean your battery. While you should regularly clean your battery, it becomes much more important prior to long periods of inactivity. Dirt and corrosion cause batteries to discharge faster, which greatly decreases the lifespan of your battery. Gently clean your battery with a mixture of baking soda and water.
Warm your battery before using it: If you still plan to use your lithium-ion battery during the winter, a quick and easy tip is to turn on the vehicle or device for a few minutes before driving or using it. Batteries generate internal heat when they are used. Simply turning on your vehicle will cause the battery to heat up. After a few minutes, your battery should be warm enough to safely use without consequences.
Store in the proper temperature: Avoid exposure less than 32°F / 0°C and more than 80°F / 27°C
Don’t forget to regularly charge your battery: Lithium-ion batteries should never be fully discharged, if possible. During the winter months, it is easy to forget to charge your batteries. The good news is lithium-ion batteries hold a charge much longer than other battery chemistries.