Originally Posted by atyab 
I went Ice Skating for the very first time. It was loads of falling and fun. Anyway, I took along my K200D+18-55 mm+55-300 mm to capture pictures of my friends falling. But my rechargeable CycleEnergy Sony batteries ran out and then my Alkaline Duracell betrayed me also. So, I was stuck in the battery nightmare.
So, I don't want such a thing to happen again. So, do I buy more rechargeable batteries or Alkaline Batteries? How many? If Alkaline then when to I buy a new set?
It is not necessarily very cold when we go ice skating by the way. Sure the ice is cold and the air above and around the ice can be cold. If, for instance the original poster was ice skating in an indoor or outdoor rink, it could still easily be 10 or 15 degrees celsius around the ice while coils and refrigeration keeps the ice cool.
But it sounds as though you had partially drained batteries in the camera and perhaps your back up batteries were some you had previously used and forgot to remove from service.
What I want to know is where some of you get those nifty, plastic caps to go over the contact end of your battery packs for the K10/K20? I have been keeping my spare dl150 battery in part of it's original packing to make sure nothing comes in contact with the poles and discharges it in any way. Does this make sense to anyone else or pose a real concern? Where can we look for those clear, polyethylene like caps for the 150/NP400 rechargable batteries?