Logitech MK955 Signature Slim Wireless Combo

Why did you pick this product vs others?: Based on good product reviews, Logitech brand name, and it's backing of 2 year warranty I purchased this product.  Battery life: I have had this product for about 3 months. From the very beginning the battery needed to be replaced every 10-15 days. It worked well when I replaced the battery. These batteries are good ones since I used them in multiple products in our home. Initially I thought this was normal. When I reviewed the specifications of this product on Logitech website it claims that the battery life is 36 months. I filed a warranty claim with Logitech. I was asked to answer several questions to describe the problem with photos. Which I did. Then I received an email response requesting me to replace the battery and report on the issue with a video. It appears that the warranty claim department and the customer service are dragging this issue without addressing the core problem. Their response is truly disappointing. I did provide customer service a response to their email and am awaiting to hear from customer service. If I receive a resolution on this issue I will update this review. The keyboard draining battery every 10-15 days was surprising to me. More surprising is the poor response from customer service trying to drag this issue rather than resolving the issue. This is not what I was expecting from Logitech. Beware before you buy this product or any Logitech products.