i have a motorola v551 and i want to get a new phone and i want to get a new phone. can that sim card go to any brand phone or only motorola?

the sim card will work on any phone for that providers network or an unlocked phone if it is a gsm provider, (nextel sims will NOT work on any other phone than nextel motorola phones because they are a iDEN network)

I have a V551 and the only complaint I have with it is battery time. I swap its sim card with an LG phone I have all the time and it works...same carrier, so it should.

Just think of sim cards as our 3800. You can only find them in GM cars, and you can swap them between GM cars...then again, anything is possible with a blowtorch and MiG welder.

Try a new battery. I had a V505 before my V551, and both have better battery life than any phone I've ever owned.

Correct on the sim card. I can swap sim cards between my phone, Kim'* phone, and Katie'* phone, regardless of phone manufacturer no problem.

Im on my third battery....can only get a day and a half at most, and thats with minimal talking, bluetooth off...before the warrenty runs out I am just going to get a new one and see if its the phone.

Sounds very much like it is. I've heard of problems with individual phones at times like this.