Wondering if some of you would give an opinion.
Just picked up a new Sigma Evo Pro 15 watt halogen twin bulb set set. Listed as battery time of 8 hours. I left home this morning fully charged....temp was 36 degrees. Within 40 minutes, both lights were showing need for recharging and noticably fading in output.
Is this a temp effect on battery? My buddy says batteries store charge better in cold but have less reserve capacity. Am I all mixed up with my terminology?
Do any of you see this in the cold?