tag:blogger.com,1999:blog-699712915773591243.post7087631913843687899..comments2023-10-05T06:25:55.177-04:00Comments on Run 192: Ultra Running Holiday Gift GuideDan Rosehttp://www.blogger.com/profile/17148231660865011554noreply@blogger.comBlogger2125tag:blogger.com,1999:blog-699712915773591243.post-81623603991003862512010-01-25T21:04:23.918-05:002010-01-25T21:04:23.918-05:00The information here is great. I will invite my fr...The information here is great. I will invite my friends here.<br /><br />ThanksAnonymousnoreply@blogger.comtag:blogger.com,1999:blog-699712915773591243.post-40509940434310099422008-12-09T23:40:00.000-05:002008-12-09T23:40:00.000-05:00I've also been using litium batteries in all my st...I've also been using litium batteries in all my stuff.<BR/>For one thing, my Timex GPS watch is rated at about 12 hours with alkalines. I've found that lithium lasts twice as long, so it'll allow my Timex to last a full 100 miles.<BR/>But someone recently warned me that Petzl or someone did tests taht showed lithiums over-heat LEDs and will cause them to grow dimmer. It's hard for me to tell. There are regular LEDs and "super-bright" LEDs (getting to be more common), that put out more wattage. So the only way I know to tell would be if you had a light-meter and wrote down the initial brightness and kept testing. <BR/>If over-heating is the issue, I still feel comfortable using in the winters.JeffOhttps://www.blogger.com/profile/10605694694141975178noreply@blogger.com