CT scans of 1k lithium-ion batteries show quality risks in inexpensive cells

Re:CT scans of 1k lithium-ion batteries show quality risks i... by eth0up on Saturday September 27, 2025 @12:08AM (#45393150)

Molicell?

I have one in 21700 and it seems a great battery so far. Otherwise I'm a Panasonic guy.

I ask because it sits on my forehead, inside a headlamp. Having my hands tied, addressing a problem quickly might be difficult. And them rascals get toasty fast when they ignite.

[ Parent | on HN ]

Re:CT scans of 1k lithium-ion batteries show quality risks i... by lambda on Saturday September 27, 2025 @02:26AM (#45393591)

Yeah, Molicel are quality cells as well.

[ Parent | on HN ]

Re:CT scans of 1k lithium-ion batteries show quality risks i... by bahmboo on Saturday September 27, 2025 @02:54AM (#45393687)

The anecdata is Molicell is good stuff. Was going to include that but I have no references.

[ Parent | on HN ]

Re:CT scans of 1k lithium-ion batteries show quality risks i... by fnordian_slip on Saturday September 27, 2025 @05:56AM (#45394465)

lygte-info.dk rates them quite highly iirc.

[ Parent | on HN ]

Re:CT scans of 1k lithium-ion batteries show quality risks i... by jdietrich on Saturday September 27, 2025 @06:22AM (#45394578)

Molicel is top tier - their P50B is the best 21700 cell available on the open market. Eve, BAK and Ampace also make some really good stuff, although they can't match the performance of Molicel.

[ Parent | on HN ]

Re:CT scans of 1k lithium-ion batteries show quality risks i... by Adachi91 on Saturday September 27, 2025 @12:39PM (#45397328)

I came to the same conclusion when upgrading from 18650s to 21700s, I spent a long time trying to weed out the poorly binned rewards, and the minefield of lithium batteries. They weren't cheap but have been happy with their performance.

There are a lot of people out there that see 18650 or 21700 and think a lithium ion battery is a lithium ion battery and they're all the same (i.e. trying to pull 20 amps from a 2 amp peak battery). I miss one of the father's of liion battery education, Mooch (from ecigarettes forum) who had a whole methodology of testing, and educating people.

[ Parent | on HN ]

Re:CT scans of 1k lithium-ion batteries show quality risks i... by CamperBob2 on Saturday September 27, 2025 @08:15PM (#45400562)

I ask because it sits on my forehead, inside a headlamp. Having my hands tied, addressing a problem quickly might be difficult

Gotta ask what kind of sport, profession, or B&D game involves wearing a headlamp while your hands are tied.

[ Parent | on HN ]