I got myself a good battery charger and a set of rechargeable AA and AAA last spring, and then got some more sets of batteries as we'd evaluated the batteries and our needs.That was 2011, over 10 yrs ago, its now 2023, and many hotels are no longer in use, business having pretty much collapsed during covid for many.
I'd be interested in more up to date info.
Today I'm taking stock of all my batteries, and will be topping up the AA range, as I've used several over Xmas for twinkly lights. So they need replenishing.
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It's been really useful and saved us money already, but mostly it's much more convenient. Plus we don't feel so bad about using the battery-driven radio around the house and garden. In summer I'll try using the solar generator to use the battery charger (it can run off a 12V car charger too).