I am aware this has been mentioned before but it was back in January and I am not sure if the battery shields have been updated since. I have one of the battery shields plugged into the Spark core, and I bought a larger 3.7v LiPo battery (1200mAh).
If I connect the battery shield with the battery and USB to the core just flashes green and the battery shield gets very hot. If I plug the core directly in with USB, it works fine.
Is the solution still the same as in January to desolder part of the battery shield?