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Used lithium batteries

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Someone has shown me a bunch of used lithium batteries ( NARADA NPFC 48 100 )

how can I test if they are in good condition ? I tested one of them and it gave me about 4200w to 4500w I wan't sure about it, 

How can I know it's approximate life span or it's cycles, I can open the battery and see each cell ( I used the multimeter they were between 3.24v and 3.4v after fully charging it and using it for about an hour on 250w )

Edited by Taher Sylla

  • Author
2 minutes ago, abd7 said:

https://solar-assistant.io/shop/products/narada

You could use solar assistant and connect to the battery directly for that information. 

Although I would be very careful with who I buy any second hand battery from. 

I think I can make a cable for it, no problems, but I need the solar assistant app, In syria we can't buy such things, although it would be very useful for our company!

You can use any raspberry pi locally , then buy just the solar assistant software and install on the pi. Check solar assistant website for further details on how to do so

  • Author
2 minutes ago, abd7 said:

You can use any raspberry pi locally , then buy just the solar assistant software and install on the pi. Check solar assistant website for further details on how to do so

Seems like I'm not going to be able to use solar assistant, it is about 50$, and you can't buy anything in Syria "because of sanctions" 

Are there any other free softwares that can be used ?

On 2023/06/04 at 8:02 AM, Taher Sylla said:

I will try it ASAP, Thank you sir

Check this topic, there is software you can download to connect directly to the battery with a PC. You can then check SOH and individual cells etc.

 

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