@dave-collins
Mmmm try this https://www.americanelements.com/printpdf/product/31131/sds

@npanneri People use MSDS for safety reasons. For example, a fire department uses MSDS to identify what is burning (batteries, paint, wood) and to diagnose how to put out the fire or rope off the area if the fumes are toxic.

@dave-collins
Download the XR manual here, it has the battery specifications and you should be able to Google an MSDS.