[edufur]

Well, unfortunately your post is in the wrong place. Somehow, I think you suspected that. Your question belongs in the more general parent forum. In any case, the reality is that you will need to flash if you want better battery. I am using Calkulin's largely due to better battery performance. There are many to pick from. Since you are looking to get out of flash addiction, I would reccommend going with the latest OS version that is actually seasoned and trusted. I am geussing here, but 501, 812, or 820 might be the answer. Find whichever build has received the most work / tweaks. Those arent usually bleeding edge. But obviously narrow to one that has the best battery. I think you might like the 812 or 820 build. I am using 23004 right now and it seems pretty solid for battery. I usually make it a whole day + with moderate use on stock battery.