X6 48v batteries powering 48v motor question?

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Bigfillly
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X6 48v batteries powering 48v motor question?

Post by Bigfillly » Sep 18, 2017 10:23 am

Hi all,
I'm new to the reclaiming of 18650's but I like what I see,
I'm building x6 48v batteries with 8p x 13s
My question:-
How do I link the 6 batteries together to enter my Kelly kdz controller to power a 48v motor?
Any help would be great,
Thanks,
Phil.

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amberwolf
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Re: X6 48v batteries powering 48v motor question?

Post by amberwolf » Sep 18, 2017 3:46 pm

I dont' really understand the question. If you are already paralleling the cells, why not just parallel the packs the same way?

Bigfillly
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Re: X6 48v batteries powering 48v motor question?

Post by Bigfillly » Sep 18, 2017 4:37 pm

Thats what I thought,
I was just making sure it is safe to connect all the positives to the + on the controller and all the negatives to the - on the controller,
Thanks for verifying it,
Phil.

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Re: X6 48v batteries powering 48v motor question?

Post by Hillhater » Sep 18, 2017 6:10 pm

Just make sure they are all at the same voltage (to the nearest 0.1 volts), before you connect them together. :wink:
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Bigfillly
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Re: X6 48v batteries powering 48v motor question?

Post by Bigfillly » Sep 19, 2017 1:37 am

Thanks for the update, if there not the same what could happen? Won't they just balance each other out?
Thanks,
Phil.

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Re: X6 48v batteries powering 48v motor question?

Post by Hillhater » Sep 19, 2017 3:00 am

Yes, but there will be no control of the current between packs if differing voltage
So , big sparks on connection and possible overheating of cells and wires if much voltage difference.
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Bigfillly
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Re: X6 48v batteries powering 48v motor question?

Post by Bigfillly » Sep 19, 2017 3:07 am

Ah yes I see what you mean,
Thanks very much for the info,
Phil.

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