Has anyone tried running their Charge on a 1500 mAh battery? My stock 1600mAh battery is blown 'cause it drains down to 15% in 3 hours of idle time. So I took the 1500 mAh battery out of a Samsung mobile hotspot and it's giving better performance. And since the 1500 is super cheap on Amazon, I was thinking about buying one or two. But I wanted to hear some real-world examples of other people running a smaller battery. Can I get by with only 1500? Thanks in advance.