doesn't the MX900 come with a reload-dockstation like the MX700?

Indeed, the reload station IS the BT hub, I'm sorry I wasn't clear enough :(

It's all a matter of training your batteries, but Li-Ion still holds out longer (in amount of recharges).
I'm still surprised by the NiMH batteries in the MX 700 here. They can last up to a week with enough PC usage. But I never charged them untill they were ampty, and I never used them half full.

the difference between 700 and 900 is the communications, which is why they renamed it

700 = r/f, 900 = bt

PS: Jmke, I did a personal review some time ago :D (I'm telling this cos I remember I'd say I'm gonna do a review of my Yeong Yang YY-B0221, but I need some last hardware to test the phonic insulation, etc.)

But, I'm writing cos I wanted to add the batteries of the mediapad gave up 3 months ago... Which is about 3 months like said by Logitech... As I don't have my own working computers atm, I can't tell for the batteries in the keyboard...

batteries in the keyboard can go out in a flash, but mine lasted... jeez, i guess about 3-4 months

they just happened to die in the middle of a Total War battle, whereupon the enemy began to handeth me my asseth, until i could find some new batteries and finish losing