Alkaline D cells are pretty pricey. I've found that rechargeable NiMH D cells are available for those who hang out at altitude. http://www.batteryjunction.com/onenidsi50ma.html ----- Original Message ----- From: "Tom Polakis" <tpolakis@xxxxxxx> To: <az-observing@xxxxxxxxxxxxx> Sent: Monday, January 15, 2007 12:45 PM Subject: [AZ-Observing] Re: Cold Feet > In a trip to Cabela's a couple months back, I purchased a pair of > battery-heated boot socks. I initially had a case of cold feet about > laying down $20 for socks, but I can report that they worked admirably in > their first observing test at 8000 feet in December. > > http://tinyurl.com/ucod5 > > These socks require two individual D cells. The heating element is over > the toes, where it belongs. You will need to wear sufficiently baggy > pants that will fit over the bulky batteries. > > Tom > -- > See message header for info on list archives or unsubscribing, and please > send personal replies to the author, not the list. > > -- See message header for info on list archives or unsubscribing, and please send personal replies to the author, not the list.