For months I've been trying to find out what happens when - as it surely will - the battery in my SP2/128 finally gets down to the unacceptable level. I'd guess (from much previous experience) this will be about 2 years from day 1 of purchase. Microsoft consistently evaded this question for many months. Yesterday I got an answer - if indeed what I learned can be said to be an answer. Someone from Microsoft Surface "support" in Dublin called me. When pressed he stated that battery replacement would be about (wait for it) ...£750. That's right, £750. The SP2 / 128 is currently available new online at £680. For comparison manufacturer replacement of batteries for the iPad costs about £80 with a 5-day turnaround. No doubt at some point someone will be offering replacement of Surface batteries from their kitchen worktop at <£750 if you like gambling. What a disastrous ripoff these things are. What a terrible mistake to buy one.