The battery on my droid doesnt last very long. I was into verizon the other day and they werent sure what one but they said there are apps in the market to fix this. Secondly how do I completely delete a app off my phone.
While I will say that there are threads on battery life that you should consult (here and on other Droid forum sites), I'll try to boil it down a bit. Basically, don't assume that there's a quick fix or app to solve your problem. There are any number of potential causes for poor battery life including the way you're using the device. As stated above, a lot of people new to their devices use their device a lot at first and this, of course, can greatly impact battery life.
I'd suggest starting with the battery info screen. You can find it via Settings->About phone->Battery info/use. Tackle the items at the top of the list. However, this screen doesn't list every potential battery hog.
Poor coverage will eat your battery.
Actively using the GPS receiver, whether you're specifically using a GPS-enabled app or have an app that routinely uses GPS for whatever reason, will kill your battery quickly. Many recommend just turning GPS off as well as WiFI and Bluetooth. I leave all 3 on all the time an have excellent battery life (but have no apps that use GPS automatically). That said, it can be useful to turn these off to troubleshoot battery issues or if you just want to make sure that nothing's using them (or if you never intend to use them).
Heavy 3G usage (browsing, downloading, whatever) will eat up the battery. In general, WiFi will draw less power for the same amount of data. If you can use WiFi instead of 3G then do so.
The display itself tends to be one of the major battery hogs. If the automatic setting consumes too much then try manually dimming and adjusting your timeout.
Frequent polling of email accounts will also eat your battery. You have to balance polling versus battery life if you have email accounts that have to be polled. I prefer push email for this reason.
I'm sure there are other reasons and plenty of other suggestions for improving your battery life. It's going to take some effort on your part to address it effectively. Whatever you do, don't randomly implement suggestions. You need to make sure that whatever you choose to do is relevant for you situation. It makes no sense to take battery saving measures on things that will have little to no impact on your battery life.
A task manager/killer is a terrible suggestion for someone unfamiliar with Android. Kill the wrong apps/processes/services and you'll make thing worse. That's not to say that they don't have their uses but I wouldn't recommend one as a battery saving measure.