I can’t even quibble with any of the details in the article. To be environmentally friendly, I use rechargeable AA’s & AAA’s in most of my devices.
It’s getting harder to find battery-powered keyboards. And I mean keyboards that run on AA or AAA batteries, not the rechargeable monstrosities that constantly beg for a USB cable. Wireless keyboards that use disposable batteries last longer than their rechargeable counterparts, and frankly, they’re a lot better for your wallet and your sanity.
Go read the whole article: Why Wireless Keyboards Should Use AAA Batteries – Review Geek