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Enercell is a battery brand sold exclusively by RadioShack at retail stores and online. In a "battery of the month club" promotion introduced in the 1960s and abandoned in the early 1990s, RadioShack clients were issued a free wallet-sized cardboard card which entitled the bearer to one free battery a month when presented in RadioShack stores.〔(Milwaukee Journal full-page Radio Shack advertisement ), page 15, November 24, 1969 〕 The free Enercells were individual AA, C or D cells or 9V rectangular transistor radio batteries. Like the free tube testing offered in-store in the early 1970s,〔((advert) in Observer-Reporter, Washington PA, page B5 - Jan 18, 1973 )〕 this small loss leader drew foot traffic. There were two editions of a "Enercell Battery Guidebook", published in 1985 and 1990. The selector guide was later moved online.〔http://support.radioshack.com/support_tutorials/batteries/batgd-a.htm〕 While the "battery of the month" card program ended in the 1990s, the Enercell name remained in use as RadioShack's store brand of dry cells and transistor radio batteries. RadioShack for several years sold batteries branded "Enercell Plus" that were marketed as "Premium Alkaline" batteries. ==See also== * Eneloop 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Enercell」の詳細全文を読む スポンサード リンク
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