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u/leouzReal

r/18650masterrace
Image 1 — Found 300 of those babies
Image 2 — Found 300 of those babies
Image 3 — Found 300 of those babies
▲ 90 r/18650masterrace

Found 300 of those babies

Hi all!

I dismantled 3 garden tool battery packs and salvaged about 300 cells (Panasonic NCR18650PF and CGR18650CG). Many of them have rust on the insulator rings and some were damp when I opened the packs.

Should I replace the insulator rings, or is the rust just cosmetic? Which cells would you discard right away?

I've ordered a 4-channel capacity/IR tester. Any tips on how to test this many cells efficiently?

u/leouzReal — 4 days ago