I find it very convenient to use metal-hydride batteries. I have a very small recharger which will automatically adjust to metal huydride or NiCd batteries (I have a very few NiCds left), and use them in my bookport, shaver, and other appliances. Most take AAs, while my cordless headphones and sound-suppressing headphones take AAAs, which the charger will also handle. Best, Ed Meskys Edmund R. Meskys NIEKAS Publications National Federation of the Blind of N.H. Moultonboro Lions Club edmeskys@xxxxxxxxxxxx 322 Whittier Hwy Moultonboro NH 03254-3627 my credo: Clinton lied, nothing happened Bush lied, thousands died and over 3,000 permanently brain injured