Cold Winter Bad for my battery

Is the cold weather bad for my ebike battery ? How to protect it .

Bring it inside if you can. Never charge a Lithium battery if it's anywhere near freezing temp. You will notice a loss of performance when riding in the cold - but that should not hurt the battery. Storing in cold isn't a problem but charging definitely is!

See some of the various threads in these lists, for the many previous discussions of this topic:

https://endless-sphere.com/forums/search.php?keywords=cold*+batter*&terms=all&author=&sc=1&sf=titleonly&sr=topics&sk=t&sd=d&st=0&ch=300&t=0&submit=Search

https://endless-sphere.com/forums/search.php?keywords=winter*+batter*&terms=all&author=&sc=1&sf=titleonly&sr=topics&sk=t&sd=d&st=0&ch=300&t=0&submit=Search