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[Specter]

So it's supposed to be 100 degrees this weekend, and ill be on a ride, up the coastline, in stop and go traffic in places, stuck on the intercoastal bridge. ugh.  Tell you what, the heat is bad enough, but being on a bridge with the heat just roaring off that pavement and now add to it the ocean right under you and that humidity just baking you, it's just stifling.  Another plus for an electric bike, you don't have a big ass engine bleeding heat and hot exhaust all over you and a radiator just burying you under hot air.  It'll be interesting to see how everything behaves when the temperatures are approaching stupid levels.   i might get one of those beer can hats and throw a few 2 liter bottles of ice water up there to keep hydrated!

ive seen little like 4x4 fans that run off usb power, i actually have one in my computer to help cool when im crypto mining, i wonder if there's a way to put one of those behind the windshield somehow, maybe on the X mount and plug it into the usb, just to keep a little air movement across your face when going real slow / stopped, that way it don't feel so much like you are suffocating off your old stale air.

what temperature does the battery turn yellow?  im wondering how hot the fairings are going to get in the hot sun, that black im telling you especially the clear part where the eyeball is, can get hot enough to burn your ass, hate thinking about the electronics under there baking in that.

Aaron

[Pard]

Pretty sure it is 40 or 41c that turns the battery indicator yellow.  Looked at that recently in the engineering screen. 

Why not start the ride super early in the day, and rest during peak heat?

[Pard]

This looks interesting:

https://www.mycoolingstore.com/compcooler-dual-backpack-full-body-cooling-system-with-5-0l-bladder-flow-control-mode.html

[FlyMig]

My previous bike was 2007 Yamaha R1 and anything close to or above 90 degrees would have my inner part of my legs show burn marks.  Plus, when those dual fans kick in it was insane, just like being inside the oven. At that time, I lived in Phoenix and used to ride year-round. Even though I had a pretty nice car I still preferred to ride instead haha.  You can't beat electric during those crazy temps. Wintertime on the other hand I could def use a little bit of that heat....

[Richard230]

That is one thing that I like about California, when you get stuck in traffic on a hot day, you can just split lanes and keep moving to avoid you and your bike getting too hot. Although that is not an issue for me this year. It has been gloomy in much of the SF Bay Area, with fog and drizzle all along the coast almost every day, for the past couple of months. The TV weather reporters claim that it is the coolest summer so far since 1984.

[Specter]

i would love to start the ride earlier pard but some of the places we are hitting don't open until like 10 am / noon so yah it starts later.  Then there's the traffic on the road, stop and go for miles as people pull in and out of shops / parking lots etc etc, god help if there is an accident, then you are stuck for miles. With that being said though, ive seen wrecks where the road is shut down and the bikes are turning around and exiting the mess riding in the 'bike lane'    and the cops don't have issue with it.  Guess they know the bike sitting with zero air flow will overheat, now you got another thing stopping traffic.

wintertime yah the heat is nice.  hand warmers are nice but only warm the bottom of your hands, the rest is at the mercy of the wind, and any moisture and you are an icicle.

aaron

[Specter]

that cooling suit, that does look interesting but probably weighs 15 lbs. and the battery probably only lasts a short while as well.
your body will put out a LOT of heat on it's own, plus baking in the sun, that won't last for long in a southern climate.
i have worn my track skivvies on rides before because it does help wick you and keep you cool fairly well, just a little breeze and it's cooling you a bit,but still it's black... black in the sun.... ugh.

aaron

[ultrarnr]

I have had my battery turn yellow without even moving it. Just parked in 100+ temps on concrete will do that. Never noticed any dip in performance, just rode it home, plugged it in and everything was fine in the morning in time to go to work.

[Richard230]

i would love to start the ride earlier pard but some of the places we are hitting don't open until like 10 am / noon so yah it starts later.  Then there's the traffic on the road, stop and go for miles as people pull in and out of shops / parking lots etc etc, god help if there is an accident, then you are stuck for miles. With that being said though, ive seen wrecks where the road is shut down and the bikes are turning around and exiting the mess riding in the 'bike lane'    and the cops don't have issue with it.  Guess they know the bike sitting with zero air flow will overheat, now you got another thing stopping traffic.

wintertime yah the heat is nice.  hand warmers are nice but only warm the bottom of your hands, the rest is at the mercy of the wind, and any moisture and you are an icicle.

aaron

I find that battery-heated gloves that are marketed to ski and snowmobile riders work better than motorcycle handlebar heaters for the reason that you mention above.

[Specter]

i used to have sets of those battery gloves and socks for deer hunting and yah they help a lot while they are heating for you.  i thought id save myself some money and get rechargeable batteries for them, between the lower volts of them and them not working well in the cold at all it was a waste of money.

parked on the concrete oh yes it gets hot, worse is on the asphalt, that black just sucks in the heat and melts it right back at you.  At least the concrete can reflect it a bit. 

but hey at least with the battery stewing, it should be very active chemically and in theory get tons of miles out of it right? 

Aaron

[jotjotde]

There are cooling vests available from Alpinestars, Macna, IXS and other brands.

It's basically a fleece vest you soak in water which is then slowly evaporating and cooling you by that way. Think of it as added sweating.
These vests are proven and old technology, we have them in our company for work in hot environment e.g. on furnaces and kilns.

https://www.motocard.com/en/blog/reviews/uncategorized/alpinestars-cooling-vest-price-opinions/

[Grauteufel]

I’ve got one of those Macna vest. They work supremely effectively when you’re moving, or dry heat (out west here). They don’t work so well on those 40c, 80% humidity days if you’re not moving. Worn under a textile jacket and A* airbag.

[Dryer667]

When I lived in Utah I would soak a tshirt in water and wear it under my mesh jacket and it was like AC for about 30min. A lot drier out in UT though!

41C is when the battery goes yellow, 48 is when it disables regen, 55 is red zone.

[Richard230]

Heat is still not an issue today in the SF Bay Area. This morning the local National Weather office is forecasting that cities around the Bay could have the lowest high temperature ever recorded for the day. It is weird how cold it has been here since the start of June and how hot it has been in the eastern U.S. 

Regarding Specter's correct comments about the poor performance of rechargeable replacement batteries in heated gloves, for motorcycle riding there are a number of heated gloves that connect directly to a bike's power outlet and solve the issue of poor battery performance and life, as well as solving the problem of just your palms only being warmed on bikes with heated grips. And if you really want to go crazy while riding in very cold weather, install "Hippo Hands" covers over the ends of your handlebars. They really work great, although they do prevent you from seeing which buttons you might need to push that are on the handlebar. Not a problem with older motorcycles, but could be a real irritation on new models with lots of buttons to push and wheels to turn on the left bar. 

[Specter]

they can power off 12 volt feeds id imagine, even 10 amps would give 120 watts, thats a LOT of heat energy to hands. if it powers off usb, 2Amps max maybe, at 5v that's not a lot of energy at all and you probably lose 4 or 5 watts in the wire due to it's extreme small gauge.

it wasn't hippo hands but ive seen similar stuff.  Essentially if you can keep the breeze off your hands while riding in the cold it would help a ton,  even like putting them in a jar, just something to keep the active wind off flesh and it would do a lot to keep your heat in.  when cold, keeping your heat in is just as important as adding new heat, wind is an absolute killer.   on this if you know you are going to be riding in the cold for a while, wear a garbage bag, that plastic underneath to act like a wind barrier can help you extensively once you actually get going.

aaron