Costco Sale: Battery Tender 3.0 Amp Battery Charger $29.99 by Rhonda July 21, 2020 July 21, 2020 *UPDATE* 12/10/18. This battery charger fully recharges and then maintains a battery at its proper storage voltage without the damaging effects caused by trickle chargers. Select Costco locations have the Battery Tender… 0 FacebookTwitterPinterestEmail
