Refilling your butane lighter will save you money and allow you to reuse your lighter over and over again. This is also good for the environment because it means less landfill waste by not buying disposable lighters. There are no dangers in doing this when following the proper instructions.
Refilling Your Lighter
Look at the bottom of your lighter. You will see a hole; this is the refill hole.
Get your butane can and press it into the hole on the lighter. The butane can should be upside down.
Wait until the lighter is full; you will hear the hissing noise stop when it is full.
Remove the can from the lighter hole.
Test your lighter, it should easily light now that it is full.