News & insights
Technical notes and buying guidance on lithium-ion cells, battery packs and energy storage.
Matching Cells Before Welding: What to Measure
Technical notes
30 A or 36 A: Which P30B Discharge Rating Is Real
Sourcing & compliance
Why 19 of 30 Cell Models Stay Marked Pending
Sourcing & compliance
Molicel UN38.3, IEC 62133 and UL Documents Filed
Catalogue & documentation
Molicel Data Sheets Filed for Eleven Cell Models
Catalogue & documentationWhat is published here
Three kinds of note, all written against documents rather than opinion: what has been added to the catalogue and filed against it, how specifications are sourced and what stays unverified, and how to read the figures on a cell data sheet.
Catalogue & documentation
Models as they are added, and the manufacturer data sheets, UN38.3 summaries, IEC and UL documents filed against them. Each entry names the document and its version.
Sourcing & compliance
Where the numbers on this site come from, why some models stay marked pending, and what to ask a supplier before committing a design.
Technical notes
How to read a data sheet: discharge ratings and their temperature cut-off, impedance as specified, cycle-life end points, and matching cells before welding.
Nothing here is a product announcement or a market claim. Where a manufacturer has not published a figure, the note says so instead of filling the gap with an estimate.