With Maxell\'s BC-200 Charger you can extend your time using high power drain devices like digital cameras, MP3 players and handheld gaming systems for hours longer than with the use of conventional batteries. The BC-200 comes with 2 precharged ready to use AA 2100 mAh and 2 AAA 800 mAh batteries. These batteries retain 85 % of their charge after six months reducing the number of times you need to recharge. Since they can be charged hundreds of times, one RE-CO Battery takes the place of hundreds of Alkaline Batteries, reducing household waste and prevents the harmful effects alkaline batteries have on the environment. The BC-200 comes with Worldwide voltage (100V-240V) and its retractable plug makes it convenient to use and store.