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Replace your old or defective iPhone 3GS battery with a new Lithium-Ion battery from 4XEM. This high performance replacement battery fits the Apple iPhone 3GS perfectly and works with your existing battery door cover.
Problem it solves: No more short battery life on your iPhone 3GS. Restore your phone to the long battery life experienced when it was new!
4XEM gear is respected industry wide for its high performance, premium quality and durability.