If you still get the problem, tap on Android System, that's hogging the battery. It'll give you a breakdown of what's taking power and you can find the runaway process that's draining the power.
But I think you're doing a necessary step. A complete wipe of the device, the internal storage, and the SD card (if one is installed) may be necessary. If it's still doing it after that, remove the SD card. But a breakdown of the Android System readout would be useful if it persists.
Being a CDMA phone (I'm assuming you're still on VZW after switching from a Razr MAXX), the signal strength is also important. Click the top chart and note the colors. Green and yellow are good. Red is bad, black can be bad, could be OK (depending if you're in airplane mode or use Juice Defender).