Don't let the zombie apocalypse or a power outage leave you in the dark. It's easier than you might think to keep your flashlight and other battery-operated devices running even without the proper number of batteries.
When you've finished with this instructable feel free to check out my website and YouTube channel for more how-to's, tutorials and life hacks.
My website: TheBestHobbiesBlog.com
My YouTube channel: youtube.com/TheBestHobbiesBlog
It's only a minute long and you can watch me demonstrate every step!