18650 Cell Quality

[nm.otter]

The Lumafield Battery Quality Report

Download Lumafield’s Battery Quality Report on 18650 lithium-ion cells: CT-based metrics, defect rates, and supplier guidance to reduce risk.

www.lumafield.com

 

[doc holiday13]

The "best" 18650's I have came out of a dewalt battery pack that stopped charging. I say best because they were essentially free. I do have a purple and a blue wrapped battery that have lasted a long while. Meanwhile the 18650 i bought from fenix died a couple years ago and it was the newest battery i owned

 

[RockAndSage]

The Lumafield Battery Quality Report

Download Lumafield’s Battery Quality Report on 18650 lithium-ion cells: CT-based metrics, defect rates, and supplier guidance to reduce risk.

www.lumafield.com

What's the bottom line on that report, regarding the top couple of batteries?

 

[nm.otter]

OEM cells did best -- and cost less than the re-wraps: