How do you change the battery in a butane lighter?

You'll need to disassemble the lighter to find the clicker or battery, and if you buy a different brand, check their instructions.
Buy lighter batteries or lighter accessories.
Reassemble the lighter and replace it with a new battery or igniter accessory.
All metal lighter defibrillator. There is a screw in the bottom of the lighter (where it is inflated), first unscrew it, then grab the cap (the part of the lighter that can be lifted) with one hand and the shell (the part of the lighter that cannot be lifted) with one hand. Pull it both ways. Be careful. When you open it, you can see the defibrillator, which is held in place by a small iron nail that can be pushed out.

Here's a step-by-step guide on how to change the battery in a butane lighter:

1. Determine the type of battery your lighter uses.   Some butane lighters use disposable batteries, while others use rechargeable batteries.
2. Purchase the correct replacement battery for your lighter.   Make sure you know the brand and model of your lighter so you can buy the correct battery.
3. Locate the battery compartment.   On most butane lighters, the battery compartment is located on the bottom of the lighter.
4. Remove the battery cover.   Depending on the model of your lighter, the battery cover may screw off or slide off.
5. Remove the old battery.   Use a small screwdriver or other tool to carefully pry the battery out of the compartment.
6. Insert the new battery.   Make sure the new battery is properly oriented and fits snugly in the compartment.
7. Replace the battery cover.   Screw or slide the battery cover back into place.
8. Test the lighter.   Press the ignition button to make sure the new battery is working properly.
That's it!   With these simple steps, you can easily change the battery in your butane lighter and keep it working smoothly.