Logitech Harmony One Advanced Remote Control Battery Li-Ion 3.7V (950 mAh) Battery - Replacement For R-IG7 and Monster MCC
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Logitech Harmony One Front Cover
Logitech Harmony One Remote Battery Replacement - YouTube
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Harmony battery replacement | AVS Forum
Kastar Replacement Battery Pack for Logitech Harmony 900 Remote Harmony One | eBay