View this article at: http://dev.macnn.com/articles/07/02/09/fastmac.macbook.battery Friday, Feb 09, 2007 1:50pm Fastmac offers replacement ... Fastmac today announced an extended replacement battery for the 13-inch MacBook. The new TruePower model is a 60W/hr. lithium-polymer battery, and is said to extend battery life by 10 percent more than any other MacBook battery product. It is also available in black or white, and has special sensors that will shut it off in extreme circumstances, such as swelling, power surges, or a short circuit. The battery is covered by a one-year warranty and a 30-day return policy. The battery will go on sale in the next few weeks and the company is accepting pre-orders now for $100.