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Old 07-24-2018, 10:05 AM   #1 (permalink)
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$2000 Electric Motorcycle

https://electrek.co/2018/07/23/elect...-for-2000-usd/

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Old 07-24-2018, 10:35 AM   #2 (permalink)
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Very interesting! My son needs a replacement for his scooter...
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Old 07-24-2018, 02:56 PM   #3 (permalink)
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72volt 32ah battery is worth over 1/2 the total price. They need a trail version.
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Old 07-24-2018, 03:02 PM   #4 (permalink)
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Nice! Not sure I like the style, but guess I shouldn't complain for that price.
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Old 09-20-2018, 04:33 AM   #5 (permalink)
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Old 09-20-2018, 07:05 PM   #6 (permalink)
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Only 30 amp hours? My car battery holds more than that! Not that it's deep cycle or anything, but still. Also, I wish they would have the frame more open, don't be ashamed to show off the battery or motor! Covering it up makes it look like a toy.
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Old 09-23-2018, 12:27 AM   #7 (permalink)
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Only 30 amp hours? My car battery holds more than that! Not that it's deep cycle or anything, but still.
30Ah in a 72v battery is a lot more than 30Ah in a 12v that is rated at a 1/20 C rate.

Seconded on wanting a trail model.
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Old 09-23-2018, 09:09 AM   #8 (permalink)
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Looks very much like the electric msx 125 (homda grom) chinese clone.

The ones over here have lead acid batteries though.
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Old 09-23-2018, 10:32 AM   #9 (permalink)
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30Ah in a 72v battery is a lot more than 30Ah in a 12v that is rated at a 1/20 C rate.
Shows how much I know about electricity!
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Old 09-23-2018, 12:29 PM   #10 (permalink)
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30Ah at 72v is exactly 6 times the energy of 30Ah at 12v. Many normal 12v lead acid deep cycle batteries are rated at 100Ah, but that's misleading when compared to a Li-ion 72v battery. For one, you can't use all of that 100Ah on the lead acid or it will only last a few cycles, so more realistically you have about 50Ah if you want it to last say 300 cycles. The Li-ion is probably good for 3000 cycles using all of that 30Ah. Also the lead acid is only rated that high if it is drained slowly over 20 hours, or 5 amps an hour. Drain it at the rate of an electric motorcycle and that 100Ah becomes 60Ah, then take 1/2 of that which means you really only have 30Ah but at 12v. So that battery costs about $100 and is 1/6th the usable energy and 1/10the the usable life of the battery in this scooter. That's why the battery alone is probably $1000.

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