I love the cells. Great performance, however the factory wrappers are brittle.
I rewrapped mine with good quality vinyl wrappers from lakemonster1.
Read this thread and see if he still has any left.
Rolls of the wrap are not very expensive, ordered from China.
dthrckt, you posted in that thread, so you know about this. The link is for anyone else who might get some of the Tennergys.
See this thread...
https://budgetlightforum.com/t/-/5123