This happened to me, I looked everywhere but there was nowhere I could get a 9V battery until the morning. Not ready to give up yet, I decided to make a quick and easy solution to test continuity in circuits.
Step 1: Materials
The tools you will need include:
Small flat head screwdriver
Long nose pliers
Step 2: Dismantling
Once the batteries are removed you can squeeze the flat head screwdriver in between the battery housing and the outside casing. With this light the casing popped off quite easily to expose the circuit board with LEDs as well as the wires connecting the battery housing.
These wires connecting the battery housing to the circuit board are what we will be looking at in the next step.