Everything Apple (the Mac heads thread)

So I installed a new HD and battery in my Macbook Pro yesterday - all went fine and restored from the Super Duper bootable backup etc etc....

However, the battery just ran down and instead of going into low power sleep mode, it just went 'click' and went dead. Working again now that I've got the power plugged in but don't really want that happening every time the battery gets low. Suggestions?

Reconfigure SMC, and PRAM.
Probably.
http://support.apple.com/kb/HT3964
http://support.apple.com/kb/ht1379

Also Mavericks is great in a subtle way, it does seem to manage the battery better, but outwardly- I've not noticed much difference.