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True, but the battery inside isn't one that you are going to be able to get from the front desk at your hotel. I still would prefer one powered by AA or AAA batteries.

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Turns out that you can pop a normal (non-rechargeable) CR2032 in the K750 to replace the rechargeable ML2032 that's already in there. Pretty decent chance of a CR2032 being at the hotel front desk or at the corner store. However, if you do that, it's important that you disable the solar-recharge feature, perhaps by taping over the solar cells.

After having my K750 for about three years, the ML2032 stopped accepting a charge, which made the keyboard nonfunctional. I did the ML2032->CR2032 replacement, put black tape over the solar cells, and the K750 came back to life. That was about a year ago with 8+ hours per day of use, and the CR2032 is still going strong.

It feels like the crappy battery is a pretty serious flaw to an otherwise fantastic product. Since the energy requirements for something like the K750 are pretty modest, I wonder if they considered super capacitors instead of a traditional battery?

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