Question: Can I replace my dead 3G battery with a battery from a 2G phone?

[dingamahoo]

Hi, I searched long and hard for answers to this question, but surprisingly couldn't find anything.

My 3G battery lasts for about 5 minutes of calls, it obviously needs to be replaced. Someone gave me a cracked and nonfunctioning 2G that evidently still has good battery life?

Can I simply take the battery from the 2G and put in the the 3G?

 

[ouimetnick]

It will not work. The battery is soldered on the Original iPhone, and squished on the 3G.3GS. You could use a 3GS battery to my knowledge