I use the Oral B Professional Care by Braun that I got at Costco. It comes with two handles, one base charger, and a travel case that can hold one handle and two brush heads. I take just the travel case with me, not the charger, and it does fine for my 4 - 5 day trips. My wife has traveled with me and shared the handle, bringing her own brush head, and it's lasted for a 5-day trip for two people on one charge.