Samsung Captivate Forum

It works as long as the original battery.

I bought it because I had to charge my cell phone twice a day.
Now I use a AC Clip Charger to charge the second battery.

now I can just bring the battery with me and swap it out.
Works out well for me.

Here is the battery I bought off Amazon Amazon.com: RND Power Solutions' Premium Standard Lithium-Ion Battery (EB575152VA) for Samsung Captivate i897, Vibrant T959, Epic 4G, and Fascinate: Electronics

I recommend buying a second battery easier to swap out then being held hostage to a charger.