4 ms·
by the time you've added enough protection (ie, extra mass and drag) to the towed battery, it seems like you would be pretty deep into diminishing returns. a la
by leetcrew 7y ago
by the time you've added enough protection (ie, extra mass and drag) to the towed battery, it seems like you would be pretty deep into diminishing returns. a large amount of the extra energy would be spent on moving the trailer itself.
- ianai 7y agoNot really. Yes batteries add lots of weight. But electric motors have lots of torque and are known to climb hills easily. Like how Tesla’s forthcoming truck can tow up to 14000 pounds. I’m not doing the calculus, but I suspect the power characteristics of electric motors more than make up for a towable battery. Edit-here’s an article about a company doing this https://electrek.co/2020/02/19/french-startup-proposes-battery-trailers-as-ad-hoc-ev-range-extenders/ https://electrek.co/2020/02/19/french-startup-proposes-batte...
- leetcrew 7y agoenergy, not power. I'm sure the motors have enough torque to tow the battery, what I'm doubting is how efficiently that extra battery capacity gets converted to range. as an aside, the cybertruck is (probably) pretty bad at towing. see this video for an interesting argument: https://www.youtube.com/watch?v=S4W-P5aCWJs https://www.youtube.com/watch?v=S4W-P5aCWJs
- renewiltord 7y agoVery slow video. Wish it were transcripted.