JM-1 external battery charger+PlayBook charger
So I recently purchased the JM-1 spare battery and charger with the Y cable bundle and I used the charger that came with the PlayBook. It got very warm. Enough that it concerned me and I used the standard cube charger that comes with all new BlackBerrys. Has anyone else done this or know it it's safe to use the PlayBook charger on the external JM-1 unit? I was plugging it in directly and forgoing the Y cable.
Sorry for the grainy image. PlayBook camera in low light.