Puredick R-IG7 Battery for Logitech Harmony One, 900, 720, 850, 880, 885, 890 Pro, H880 Universal Remote (Latest Version) Compatible with Logitech Harmony One, 900, 720, 850, 880, 885, 890 Pro, H880 Universal Remote. Premium quality 3.7V 950mAh Li-Ion battery can power up your Logitech universal remote device so you can enjoy your home entertaining system. Premium Grade A cell for longer battery life with no memory effect. CE Approved and Safety Assured. Puredick Products are tested by manufacturer to match OEM products. What You Get: 1 x 950 mAh Logitech Replacement 880 Li-ion Battery, our fan-favorite 60-DAY MONEY BACK & 18-MONTH WARRANTY and friendly customer service.