Sub 0C being rare here* , My studded tire bike has removable battery lights AA & AAA.. they go in my pocket when I'm off the bike..

When 27f it was dry, last year not a cloud to be seen (or retain heat from daytime) ..* I'm by the ocean.. ranges between lower 40s to mid 50s.. ...




Mountaineers headlamps have the battery pack on a cord, so you keep the batteries in a pocket under the down parka..







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