Hello, although I got my MBP 2010 17" in 2010, I have used it for about 2.5 years only. When there was a problem with the system about two months ago, Apple did a full check. They found that the battery is losing its ability to hold charge. I think the battery health was like 75-80%. Not quit remember the value. Recently, after fully recharging the battery, it loses charge quickly. Could very cold weather lead to this? What will happen if I do not do anything? I plan to delay the purchase of a new laptop until next year due to disappointments of MBP 2016. I am waiting for Kabylake MBP or SurfaceBook.