[VeryVito]

Add a solar cell to power it, and I'm in. The K760 and K750 are amazing, simply because I never have to worry about cords or batteries.

[Someone1234]

I'd take batteries over a keyboard which might not work in low or no light. Seems like a gimmick.

[reportingsjr]

Reviews are actually pretty good with regards to that. The complaints I have seen is that the battery dies after a couple of years and is not easily replaceable. This would mean a new keyboard every couple of years.

[pgl]

The K750[1], which I've been using for a month now, works in very low light, and on a full charge the internal batteries should last without light for "up to 2 months". It's impressive. And a really nice keyboard to boot!

[1]http://www.logitech.com/en-us/product/k750-keyboard