Before my RadRover was delivered, I bought one of these jackets for my battery... I am glad I did! La Niña is soaking us in the Pacific Northwest combining with tons of fallen leaves to creat a wet, nasty mush that covers my bike... At my apartment and work I have to take the battery off and carry it in and so far the battery has been perfectly clean and dry when lugging it around! I even bought the insulated version- it was in the 20's one morning and my battery was only cool when I finished my 12 mile ride to work! https://www.etsy.com/listing/858492078/battery-jacket-carbon-fiber-look-custom?ref=hp_opfy-1&frs=1&bes=1