My knowledge of the LWs Range vs Temp is purely a product of observation. What I have found is that when riding on back roads (35-55mph, 56-88kph) in warmer weather with the RESS (high voltage battery) temp in the high 80s°F and above (27+°C and above) I can easily maintain a range ratio of about 1mi / 1% (1.6km / 1%), and usually a better than 1mi to 1% ratio.
But when riding on the same back roads in cooler weather with the RESS temp below the high 80s°F (27+°C), I find it’s a struggle (need to ride much slower, baa) to maintain a ratio of 1mi to 1% (1.6km / 1%).
If I start a ride In 95°F (35°C) weather, and ride 30mi (48km) west to Hwy-1, along the Pacific Coast, it’s usually much cooler there and the LWs range drops off noticeably. This wouldn’t be a big deal, but there are exactly ZERO DC/CCS chargers on the way to and along Hwy-1, going N. or S.
I usually hit the coast about 60mi (97km) N. of the capital of wokeland (San Francisco, not sure if it’s the capital, but the infestation is so severe that it’s beyond recovery) and there isn’t one DC/CCS (one Tesla Super Charger station in Fort Bragg, not open to non Tesla) charger on Hwy-1, from Mill Valley all the way to One Log House. That’s a DC/CCS charger desert, 224mi (360km) long. The wokenese use this route regularly, so you would think there would be at least one DC/CCS Charger along a scenic rather isolated 224mi route. But I digress.
I’m riding in a relatively mild climate, so I would like to know what others have noticed when they compare riding in warm / hot weather vs riding in cooler / cold weather.
In my ignorance, I thought the LWs coolant circulated through the RESS, but I was wrong, the coolant circulates through the OBC, motor and motor controller. The battery is air cooled and seems to have ample cooling ability. When riding in 100°F (38°C) weather I haven’t noticed the RESS temp above 102°F (39°C), it may have actually hit higher temps, when I wasn’t checking.
What I’m getting at is, when riding in cooler weather the range could be increased by taking the waste heat from the OBC, motor and motor controller and transferring this heat into the RESS by circulating the coolant through the RESS only when it’s temp is below optimal.
I realize this is standard technology on caged EVs where the need to save weight and volume are not nearly as critical. This would have added weight, volume, complexity and $$$ to the LW.
But with the LWs limited range (I believe if you do a “range anxiety” search there’s just a photo of a LW, don’t get me wrong I really enjoy the LW, I make it work, and I have a blast doing it) it seems like a waste not to take advantage of what would be essentially free range, and everybody knows free range is the best range.