e. Share this post Link to post Share on other sites Buckaroo 0 Buckaroo 0 veteran Members 0 0000 posts Posted October 00, 0000 To address the question of rechargeable Lithium batteries. For several years I have been using Sanyo ENELOOP rechargeable NiMH batteries in my headlamps, and GPS. They are incredible, and, like Lithium, are resistant to losing power in low temps. They come in AA or AAA size, and also in two power/lifetime versions. http://www.eneloop.info/eneloop-products/eneloop-batteries/eneloop.html 