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Author Topic: Motorcycle Consumer News tests the 2018 DSR  (Read 1291 times)

NEW2elec

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Re: Motorcycle Consumer News tests the 2018 DSR
« Reply #15 on: November 23, 2018, 11:05:17 PM »

Just a little troubling to hear about battery over heating from a few people now.
BenSwing had issues with his big summer tour fast charging with an already hot battery.
I never did see a post saying if it got fixed or not.
New types of cells not handling heat?
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Richard230

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Re: Motorcycle Consumer News tests the 2018 DSR
« Reply #16 on: November 24, 2018, 03:52:35 AM »

Just a little troubling to hear about battery over heating from a few people now.
BenSwing had issues with his big summer tour fast charging with an already hot battery.
I never did see a post saying if it got fixed or not.
New types of cells not handling heat?

The article commented that the BMW C-Evolution that they tested never suffered overheating, even when traveling continuously at its top speed of 80 mph and presumably charging using its 240V system.  Then they mentioned that the scooter battery pack has a channel running down the middle and a fan that would stay on while the pack was charging and even afterward until its batteries cooled off below a certain temperature.  So it sounds like you can still deal with battery temperature without having to resort to a liquid cooling system.   ;)

Kind of reminds me of my friend's Buell when he turns it off after a ride.  ;)
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Richard's motorcycle collection:  2018 16.6 kWh Zero S, 2020 KTM 390 Duke, 2002 Yamaha FZ1 (FZS1000N) and a 1978 Honda Kick 'N Go Senior.

heroto

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Re: Motorcycle Consumer News tests the 2018 DSR
« Reply #17 on: November 24, 2018, 06:00:24 AM »

Someday we e-moto fans will look back on this as a nail in the coffin or a wake up call to Zero. Maybe Zero is emphasizing light weight and small volume so much that the battery overheating problem is inevitable, or maybe just needs some more engineering.

BMW reversed engineered their scooter from their e cars. They knew overheating had to be dealt with so they use liquid cooling, IIRC.
« Last Edit: November 24, 2018, 10:10:51 PM by heroto »
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NEW2elec

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Re: Motorcycle Consumer News tests the 2018 DSR
« Reply #18 on: November 24, 2018, 06:58:47 AM »

Well I wish Ben would have posted if he found the reason for the high heating, but I'm not going to join FB to talk about it. 
He had made long trips with Elcon chargers and his MY14 battery so there were two differences to his last trip.  The 14.4 kWh battery and his chargers going dub J1772.

I looked for a while today but couldn't find a picture of the old Mission battery front which had a
"t" set of air channels through the bricks to at least get air moving around all sides of the battery while riding.  Not perfect but better than a closed case.
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cpallenjr

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Re: Motorcycle Consumer News tests the 2018 DSR
« Reply #19 on: November 24, 2018, 10:07:02 AM »

In addition to the air channel, fins on the electronics cases, and cooling fan for the battery pack, the motor and power electronics are liquid cooled on the BMW C Evolution. I wonder if the drive components themselves are contributing to the heat build up in the Zero battery packs.
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C Allen
Seattle, WA
2017 BMW C Evolution
2016 BMW R1200GSA
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