WTB 18650 batteries

Many sources are there (google with the name mentioned)

Robu.in
Roboelements
Electronicscomp
Bm-es.com

I am sourcing a few for DIY work

Alternatively, go to a laptop repair shop or any scrap shop, get a scrap laptop battery (100 bucks) open the battery case and one could find 18650 batteries. Check with volt meter or multimeter and if measures above 1V recharge it and it should be good, don't expect it to perform like new one though
 
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