Here, a good scoot battery costs around $20.00, a battery tender/charger around $80-85.... There are good quality locally made batteries here, so they are cheaper.... Battery tenders are imported, usually from the U.S. or Europe, that makes them expensive. Even though these are made in Asia or China even, they still come from the U.S. or Europe because they are purchased there. Hmm, I think I'll inquire from my Chinese suppliers about these tenders and create a market here... If a tender can cost around $15 in the U.S., I may get it for around.... 5 bucks each from China, wholesale... Scoot owners may not be the market but those people with several cars...