My husband bought a Stark Drive bike through Kickstarter about 6 years ago. It’s served us incredibly well, and we’ve put thousands and thousands of miles on it, but the battery is now truly cooked.

I think it’s time to finally buy a replacement, which sells for $600: https://starkdrive.bike/accessories/17ah-battery-pack/

Before I do, though, I just wanted to get some expert opinion. Are there any other options that are cheaper or more environmentally conscious? Are there places that can capably disassemble the battery locally and rebuild it with fresh cells? Would doing so have any advantages against just buying the new one? Thanks.