R-IG7 Battery for Logitech Harmony One, 900, 720, 850, 880, 885, 890 Pro, H880 Universal Remote (950mAh 3.7V Li-ion) Compatible with Logitech Harmony One, 900, 720, 850, 880, 885, 890 Pro, H880 Universal Remote Replacement R-IG7 Battery 950mAh 3.7V Lithium-ion Rechargeable Battery Premium Quality. CE Approved and Safety Assured 1 Year Replacement Warranty