For last 15 months I am using Lenovo laptop without any trouble. But recently I am getting one message whenever I start my laptop that I have to replace batteries for my laptop. One of my friends also told me that I should change the batteries for better working of my laptop. But I don’t know where to look for Lenovo batteries. So can somebody help me with few places or stores in Nevada from where I can buy Lenovo batteries? Also can I use batteries from different brand for my Lenovo laptop? I hope to hear soon from you guys. Thanks.