curiosity - or the broken hand-pumping flashlight

Curiosity kills the cat, but in this case, it killed my "hand-pumping flashlight". I'd been given a low-cost one, along with several others. Some were brightly glowing while some needed continuous pumping for any light. Suspected a hidden battery inside. Opened and saw. Yes, there was a battery. But now the flashlight is dead - a resistor broke during surgery!