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Old 12-16-2015, 08:25 AM   #11
dougs_huntingcart
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Default Re: 48 Volt Lithium Project

Very cool. Nice job!
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Old 12-16-2015, 09:25 AM   #12
Volt_Ampere
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Default Re: 48 Volt Lithium Project

I have not seen those batteries. Can you give us some details of where you got them and what their Amp Hour rating is? Nice Cart!
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Old 12-16-2015, 10:45 AM   #13
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Default Re: 48 Volt Lithium Project

They use a very different cell assembly than the Leaf packs you having been looking at....



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Old 12-16-2015, 11:35 AM   #14
Volt_Ampere
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Default Re: 48 Volt Lithium Project

Yuck. Too many points of failure.
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Old 12-16-2015, 11:49 AM   #15
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Default Re: 48 Volt Lithium Project

Went to the DES webpage. Not a lot of info. How much did the battery packs cost? It appears from the webpage they have a built-in BMS. Is this the case.

Great looking setup.
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Old 12-16-2015, 11:52 AM   #16
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Default Re: 48 Volt Lithium Project

Excellent build, slick cart,
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Old 12-16-2015, 12:23 PM   #17
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Default Re: 48 Volt Lithium Project

They already have battery packs in golf carts

https://www.youtube.com/watch?v=f6bGfgNKrp0
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Old 12-16-2015, 12:32 PM   #18
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Default Re: 48 Volt Lithium Project

Looks like they have been putting battery packs in lawn equipment too

http://www.dynamicenergysolutions.net/products
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Old 12-17-2015, 12:33 AM   #19
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Default Re: 48 Volt Lithium Project

They are 90-100 Amp-Hour rated.
Yes, they have a built in BMS. In my opinion that is what makes it nice and why I liked the packs. There was only the positive and negative connection that I had to deal with. The Delta Q charger has a lithium algorithm programmed into it. They are built very solid and nothing moves inside the pack when you handle them. You would need to contact DES for the pricing since they are a Canadian company and the exchange plays apart in the pricing. The packs are built in Vancouver, B.C.
Attached is a picture of the inside of one of the packs before the top was glued on.
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File Type: jpg 20151024_114055.jpg (262.8 KB, 0 views)
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Old 12-17-2015, 09:24 AM   #20
Volt_Ampere
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Default Re: 48 Volt Lithium Project

Way too many points of failure for me! Hundreds of connections. (Like Tesla)
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