Crystylyte 5302 motor with a 72V 40A controller battery pack needs

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efreak
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Crystylyte 5302 motor with a 72V 40A controller battery pack needs

:jawdrop:

For a 20 to 40 km range using Crystylyte 5302 rear motor I guess using the dewalt packs what is the easiest and safest configuration?

Please and thanks for all contributions

The reason I ask is that my search has shown that these batteries are being used in a variety of ways including one at a time (switched) as well as p/s configurations bypassing bms and not .

There is not a lot on this new 5000 series motors. In fact I hear a lot of people vote against it because of it's high demands

any thoughts?

chas_stevenson
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Re: Crystylyte 5302 motor with a 72V 40A controller battery pack

efreak,

Here is a site where you can find some information on the Phoenix. I hope this helps.

Chas S.
My Bicycle Pages

efreak
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Re: Crystylyte 5302 motor with a 72V 40A controller battery pack

Thanks

I guess after doing more research I am a focusing on a 5304 hub motor That would be a cruiser and 72v 40 A

controller. I just have to figure out what s an adequate amount of power for my commute of 10km (20 km round trip) without charging at work.

I am thinking of dealt packs and just trying to decide on the number ideally I guess higher Ah but a minimum for my commut moderate hills but mostly flat i guess 6 for now 2s 3p and I,ll pedal as well just not full out.

Thanks to the others as well for all their input on this gold mine of a forum for all things electric,
glad to be part of the community.

efreak

andrew
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Re: Crystylyte 5302 motor with a 72V 40A controller battery pack

efreak,
I can try and figure out about what speed you could do that with that many dewalts.

Dewalt nominal voltage: 33v Capacity: 2.3 ah

2s 3p = 66v 6.9ah
66 * 6.9 = 455.4 whrs

Power calculator: http://www.kreuzotter.de/english/espeed.htm

To travel 12.4 miles you will need to stay below 36.73 whrs/mile.

With rough stock numbers calculating for mountain bike unsuspended it comes to 35.4 mph, with sustained 1300 watts output. This should be without pedaling, and these are near perfect conditions, e.g., flat, no wind, ect.

*Note: Take power in watts divided by speed in mph to get whrs/mile energy used.

---
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[url=/forum-topic/motorcycles-and-large-scooters/587-my-kz750-electric-motorcycle-project]KZ750 Motorcycle Conversion[/url]
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efreak
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Re: Crystylyte 5302 motor with a 72V 40A controller battery pack

Thanks andrew,

So realistically I would need a litle more at least 8 - 10 packs?!

for a little longer range and a more whrs.

I wonder how long before there are other suppliers of these packs at more reasonable prices( of course the market dictates the price).
or how long before scooters start to use em

efreak

Russ
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Re: Crystylyte 5302 motor with a 72V 40A controller battery pack

I run four Dewalt packs on a 408 motor, 35 amp controller, 72 volts. You could easily do that trip with four of these batteries averaging well over 20 MPH with easy pedaling. I know from experience. I make an 11 mile commute with my four all the time with power to spare. Bring a charger in a back pack and you would be good for lots of side trips on the way home.

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