36kwh battery porn VW 25Ah Sanyo cells+test

Batteries, Chargers, and Battery Management Systems.
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Joachim
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36kwh battery porn VW 25Ah Sanyo cells+test

Post by Joachim » Jan 06, 2018 12:20 pm

The last 6s 2p VW modules....these modules have a smal problem with the thermoswitch(nothing to do with the cells)on top of the black cover....so they want to destroy the modules :shock: happy to have them in my hands now so i can use them were they were bluid for.
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Last edited by Joachim on Jan 08, 2018 2:43 pm, edited 1 time in total.

wiwild
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Re: 36kwh battery porn EV project

Post by wiwild » Jan 06, 2018 5:38 pm

36kWh for free ???? Great deal you lucky :P

999zip999
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Re: 36kwh battery porn EV project

Post by 999zip999 » Jan 06, 2018 10:36 pm

Professional factory made modules look at those busbars. Hope she doesn't mind us talking about her can't wait or you to take these apart with pics.

Joachim
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Re: 36kwh battery porn EV project

Post by Joachim » Jan 07, 2018 4:57 am

Take them appart is easy,i dont have them for free :lol:
I have to check al the modules for ballans and healty voltage first,the ones i already checkt are al 23.04V 6s 2p/3.83V for the 2p cells.

Hope to get 23-24Ah out of the cells on a test,i can only test 7s 10s 13s battery.so 7S 25V 25Ah pack next week and test them whit the battery condition test machine.Hope these cells have a low IR and good enery...i,am happy with 579Wh out of a 7S 1P pack....maby they have more energy bud i have to test them a view times.Post the results here.

Joachim
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Re: 36kwh battery porn EV project

Post by Joachim » Jan 08, 2018 7:49 am

Discharge the 7S 1P pack.
charge 4.2V cell.
End discharge 3.10V
Discharge Amps 13A continue
IR 14 Milliohm :lol:
Discharge time 2 hours.

Result:25.87Ah 666,47Wh for the 7S 1p pack so singel cell wil store 95.21Wh.

Results are perfect.
I wil post the discharge data sheet.....

litespeed
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Re: 36kwh battery porn EV project

Post by litespeed » Jan 08, 2018 11:15 am

Nice!

Tom
I'm married so you know I'm no stranger to pain!

Joachim
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Re: 36kwh battery porn EV project

Post by Joachim » Jan 08, 2018 1:51 pm

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Red line:Voltage
Bleu line:Amps
Green line:IR(Low 14Milliohm@13A dsicharge)
Temp wurkshop 15C

Philaphlous
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Re: 36kwh battery porn EV project

Post by Philaphlous » Jan 08, 2018 2:22 pm

This thing is going to be freaking awesome! Hope you have a big charger for it. Lol

SlowCo
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Re: 36kwh battery porn VW 25Ah Sanyo cells+test

Post by SlowCo » Jan 08, 2018 3:53 pm

Nice results!
Any chance you'll have leftover cells to sell if all are okay?

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