I tried this on the Total Geekiness forum but there isn't much action over there. I'm hoping that a fellow commuter can help me out. I've been running a halogen light setup for two years now and my 7.2 AH sla battery died. I'm thinking about going to NIMH batteries to reduce weight. I spotted two setups that are interesting:

http://www.batteryspace.com/nimhbatt...x?SSAID=314743 and

http://www.batteryspace.com/waterbot...x?SSAID=314743 .

Has anyone used either of these? Will I have a problem with NIMH batteries in the cold? My bike sits in an outdoor rack and I ride even when it's freezing out. My cut-off point is generally about zero. Then it's too cold. I could pull the battery pack and bring it inside with me if the temperature is a problem. Any feedback would be appreciated. Thanks,

Walt