Costco Battery Tender

Tales of Battery Tenders New and Old This is kind of an off-the-wall story about a special Costco Battery Tender. It’s the only 3A Battery Tender Plus charger and maintainer in the Deltran lineup. This one has a Costco special part number of 022-0202-COS-WH. (The “COS” is the Deltran Costco designator.) It works with either …