Newegg offers the Philips Sonicare PowerUp Battery Toothbrush, model no. HX3631/02, for $14.99. Coupon code "SNCAUG05" drops it to $9.99. With free shipping, that's the lowest total price we could find by $4. It features a 2-minute timer, rubber grip, and runs on two AA batteries (included.) Deal ends August 17.