First charge took me 3-1/2 minutes; they say, up to 5 minutes. It's a wireless mouse that uses a capacitor for a superfast charge.
When the charge weakens after 4 hours, you plug it in with a USB cable and you are back with a full charge within 3 minutes. $36 at Amazonhttp://www.amazon.com/Genius-DX-ECO-ECO ... B007DAK1AO
i took pics but i will upload them for the evaluation. i HATE leaving my PC and going to find batteries for my rechargeable wireless mouse. However, i don't know what it will be like to stop every 4 hours and plug my mouse into my PC for 3 minutes nor what i will do while i wait (usually it takes me longer than 3 minutes to find fully charged batteries as replacement).
(i always keep a second mouse around for this purpose)
we'll see - wait for the evaluation after i use it awhile. It seems a bit big but then i am used to a more compact mouse. Feels good.