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52 minutes ago, Herman said:

Do you understand the risk of buying second hand batteries?

Ditto ... but there is a way IF you know what to look out for and know you are taking a risk.

1) Use a Hawkins battery tester, same ones they use to test car batteries, and test each battery making sure they stay in the green.
2) Find out the going lead price and pay that or a little bit more per kg for the batts.


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TTT he's asking about 18650 batteries not lead acid. You can use them with out too much of an issue. But you have to test them and be quite meticulous about the process. It's not complicated but you have to bear in mind they are second hand so you probably won't get the same capacity and they are Li-ion which can pose a fire risk if not processed and used in a sensible fashion.

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