Are there any less expensive, third party batteries I can get for my Dell laptop? (Part 1)

Leo says that Fran needs to be careful trying to buy a third party battery. Lithium-Ion batteries are explosive, and will literally explode if overcharged. All Lithium-Ion batteries that are made well have circuitry to prevent them from being overcharged. So it's always safe to go with a reputable parts provider like Dell itself or a certified Dell parts provider, like Parts-People.com.