Lightning crackles and thunder rumbles. Unsurprisingly, your house power gets cut off due to the impending thunderstorm. Panic settles in for a minute, before you calm down at the thought of the flashlight that you have stored in the cupboard for emergencies such as this. Relieved, you rush to the cupboard and take out the flashlight. Darkness reigns. The batteries have died. You scramble around in a frenzied state looking for batteries, but all you can find are those of the wrong type.
Buy 4D lo!
A very unlucky situation, but common. Thanks to Panasonic's 'Any Battery Light', you don't need to worry about scrambling for batteries in the dark.
The BF-BM10 flashlight allows you to insert any sort of 1.5volt batteries, from your puny AAA to the huge-ass D-sized batteries. More info here.