TIP Finder : Visit the Adapter & Tip finder page to find the best tip for your laptop.
Complete the form below, then visit ourInnergie store to order your tip.** http://store.myinnergie.com/?wpsc-product=free-tip-program
World Wind Customers : Complete the form below to request your tip.
**Additional charges for shipping and handling may apply.
The serial number is a sticker located on the product packaging. Please see the sample image below.