While I was cruisung th thrift shops yesterday (great place to look for gifts) I came into the electronics section. I found 2 DELL laptop battery packs for 1.98 each. 3.96 together and then with my military discount only 3.56. They're 14.4v 2700 mah. I already took them apart and it appears they are in a 4S2P configuration. The cells aren't what I was expecting, they're like giant double A's. My multimeter is broke so I'll have to go to RadioShack and pick up another to see what condition they're in. If they're OK then I plan on using them 2S4P in my parking lot touring car (HPI rally). Evn if they are bad or turn out to not work it's still fun to do. Here's some pics.....