This iPhone repair part is for the "Do it Yourself" iPhone 3g battery replacement. If you want to replace the worn out battery on your iPhone 3g, select this part and iBroke will ship it out with in 24 hours! This battery is different from the 3gs battery, make sure you have an iPhone 3g! If you put the wrong battery in, you may run into problems. If you have any questions you can always contact us by clicking here. If you do not feel up to the challenge you can always send your iPhone into us and well fix it quickly and professionally.