you must be, because i said it lasts 3 weeks which implies i know it's rechargeable. I'm not aware of any disposable electric toothbrush named sonicare with swappable tooth brush heads.
i have the same toothbrush. that stupid annoying charging base + how fast it dies is a terrible downside for the product for me, and I can't imagine splitting the battery with another person and keeping it on those god awful chargers even more often
i am poor myself and am fully aware of the assistance options available in my area. sitting on the corner with a sign is not a good solution to poverty. i will happily pay 10$ for a rose or cup of mango slices, but sitting around and guilt tripping money out of people that are just trying to get to work or focus on the road is not an ethical use of peoples time imo, no matter how poor you are.