発熱事故でバッテリーパック(みーさか)が吹っ飛ぶ、、、ぽやー

The battery pack (Misaka) blew up due to overheating... oh my

These posts reference a screenshot from Toaru Majutsu no Index: Imaginary Fest where Touma suggests Misaka try energizing an electrical plug by sticking it in her mouth.