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General => General Technical Chat => Topic started by: madires on September 25, 2025, 11:05:03 am

Title: Lumafield 18650 report
Post by: madires on September 25, 2025, 11:05:03 am

Media:
- X-ray scans reveal the hidden risks of cheap batteries - https://www.theverge.com/news/784966/lumafield-x-ray-ct-scan-lithium-ion-battery-risks-manufacturing-defect (https://www.theverge.com/news/784966/lumafield-x-ray-ct-scan-lithium-ion-battery-risks-manufacturing-defect)
- Study Reveals 1 in 13 Low-Cost Lithium-Ion Battery Cells Could Have Dangerous Defect - https://www.morningstar.com/news/pr-newswire/20250924ne80841/study-reveals-1-in-13-low-cost-lithium-ion-battery-cells-could-have-dangerous-defect (https://www.morningstar.com/news/pr-newswire/20250924ne80841/study-reveals-1-in-13-low-cost-lithium-ion-battery-cells-could-have-dangerous-defect)

Report (requires contact info):
- https://www.lumafield.com/battery-report (https://www.lumafield.com/battery-report)

Title: Re: Lumafield 18650 report
Post by: Black Phoenix on September 26, 2025, 04:05:10 pm

Here's the report without any need for register:

https://transfer.it/t/oK7dLkwBGRLR

Title: Re: Lumafield 18650 report
Post by: thm_w on September 26, 2025, 08:21:48 pm

TLDR: if you are buying 18650 cells, source major brands from a reputable shop instead of Amazon/temu.
eg https://www.18650batterystore.com/ (https://www.18650batterystore.com/)

Title: Re: Lumafield 18650 report
Post by: ledtester on January 22, 2026, 05:31:18 am

Adam Savage just posted an interview with the Lumafield engineers involved.

You can see images of the CT scans of various batteries starting at 6:40.

https://www.youtube.com/watch?v=-Y23nfAOiXQ (https://www.youtube.com/watch?v=-Y23nfAOiXQ)