Here is the data of compression performance. 2500MAh LG 18650HE2 was charged to 4.2V 5min wait then discharged to 2.8V while vibrating it at 2.5Hz (max load on compression pad occurred 2.5 times per second)

Yellow line represents acceleration on the axis both ways(hence negative value), red line – temperature in C and blue line – pad compression on a single cell.

When temperature rises inside battery, compression pad performance drops but it is insignificant. At the beginning of the test compression is around 19N or 1.9kgf per 2.54cm² dropping to 17N or 1.7kgf per 2.54cm². Its a good result 🙂