The Smell of Molten Projects in the Morning

Ed Nisley's Blog: Shop notes, electronics, firmware, machinery, 3D printing, laser cuttery, and curiosities. Contents: 100% human thinking, 0% AI slop.

Harvesting 18650 Lithium Cells

With a Dutchess County Household Hazardous Waste Collection Day coming up, I’ve been harvesting usable lithium cells from a variety of old batteries:

Harvested 18650 3P lithium batteries
Harvested 18650 3P lithium batteries

The pile of 18650 3P blocks over on the right are some obviously corroded deaders and the lowest performers from these tests:

Harvested 3P 18650 Packs
Harvested 3P 18650 Packs

I doubt they’ll get recycled, as there’s entirely too much overhead involved in dismantling boxes full of cells like these, but I hope they’ll get a decent burial somewhere.

Comments

2 responses to “Harvesting 18650 Lithium Cells”

  1. NPN RGB Astable Multivibrator Timing Adjustment – The Smell of Molten Projects in the Morning Avatar
    NPN RGB Astable Multivibrator Timing Adjustment – The Smell of Molten Projects in the Morning

    […] lead photo shows a harvested 18650 cell, but I started with a known-good Samsung 18650 cell rated at 2600 mA·h at a 0.2C = 520 mA rate to […]

  2. NPN RGB Astable Multivibrator: End-of-Life Battery Runtime – The Smell of Molten Projects in the Morning Avatar
    NPN RGB Astable Multivibrator: End-of-Life Battery Runtime – The Smell of Molten Projects in the Morning

    […] un-wedging the astable’s synchronized periods and recharging the harvested 18650 lithium cell, I put a sock (not shown) over the radome and let it blink on a corner of the […]