Can The Foxsur Pulse/Repair Battery Charger Repair A Bad Battery?

Quite a few YouTube videos tell me that these little smart chargers can't desulfate batteries. My (Buddhist) view in life is never to believe anything I hear or read. I listen, but then I do my own research and make up my own mind. To research this issue I carried out a test on my own battery, which was quite degraded. Watch the video to find out the result! Foxsur Smart Battery Charger (Amazon): https://amzn.to/3RXWXJT Foxsur Smart Battery Analyzer (Amazon): https://amzn.to/3S10p6t Foxsur Smart Battery Charger (ALI Express): https://s.click.aliexpress.com/e/_Dm3... Foxsur Smart Battery Analyzer (ALI Express): https://s.click.aliexpress.com/e/_Ddb... "As an Amazon Associate I earn from qualifying purchases." Amazon requires me to make this statement, but I only recommend products that I own, use and/or endorse. I receive a small commission if you use my affiliate link, but your purchase price remains the same.