5 ms·

When I think of my E-Bike battery of ~400Wh that can keep going for ~100km (admittedly, with some assistance), I'm surprised this laptop can only go for 16h on

When I think of my E-Bike battery of ~400Wh that can keep going for ~100km (admittedly, with some assistance), I'm surprised this laptop can only go for 16h on that. The energy required to move 80kg (me+bike) 25km is significant.

AtlasBarfed 4y ago
Well, look at the power outputs of bikers. 100 watts can probably get you to 15mph in flats / no headwinds. so that.... well, 400 watt-hours for 60 miles! Meanwhile, gaming rigs are coming with kilowatt power supplies now, maybe even more. Laptops try to be more efficient, yeah, but 100 watt-hours in sixteen hours is 6.25 watts sustained. Did I math that properly?
- nicolaslem 4y ago
  That checks out, 6W is about the power used by an average laptop. Best in class ones are about 3W.
- taink 4y ago
  I mean you can check with this tool[1] I discovered while wondering for myself. I gave up halfway through though. [1] https://www.omnicalculator.com/sports/cycling-wattage https://www.omnicalculator.com/sports/cycling-wattage
  - AtlasBarfed 4y ago
    I'm a biker/endurance athlete to the point of completing several Iron-distance triathlons in the "happy to finish" division. So I have a general idea of 15-20mph wattage to speed.