I think it is the DSE-901 model, i recently purchased the KR808D-1
batteries and did some archiving searching on the forums and read the atomizer (DSE-901) (i would think cartomizer would also [DSE-901]) is compatible with the KR808D-1 model.
The battery i have is about 9.2mm with male
threads and female carto.
When i went to try my carto on the KR808D-1, the threads didnt seem to fit. I just wasted $30 on these 2
batteries 