The Garmin Edge 1040 Solar uses the sun for 100 hours of stated operating time – CyclingTips
High-end cycling computers with GPS usually require a battery life of around 15-20 hours – more than enough for most everyday users. But if you’re an ultra-long-distance rider who needs more than that, the new Edge 1040 Solar from Garmin is said to run for up to 100 hours, thanks to built-in solar panels that …