Iphone 5s battery life almost nil after upgrades

After the standard upgrades, my battery on my Iphone 5S is almost non-existent. I have all notifications, etc. off.

I was thinking about upgrading to Iphone 6 but after reading the comments, it looks like the battery life is short as well.

I can't upgrade until April but was hoping to get a head start on the research and I was looking to upgrade to an Iphone 6.

Please share thoughts and ideas about extending my current battery life on my Iphone 5S.

Thanks.