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ES Task Manager (Task Killer)
The well-known ES Task Manager isn't a battery program per se. It's a Swiss-army knife of an app that lets you do many things. One of these is that it lets you kill power-piggy tasks. Used correctly, say with the information you've gathered from Battery Drain Analyzer and Wakelock Detector, this can turn your power-guzzling gadget into a model of battery economy. Or, you can foul up your device beyond recognition.
If you're going to use it to help with your battery life, you'll need to use it task killing functionality carefully, but there are times you'll be glad to have the power to kill off misbehaving apps that are trying to drain your battery dry in front of your very eyes.