in ,

#165 – How To Get An Extra Fifteen Minutes of Battery Life

If your calculator runs out of batteries in the middle of an exam, rub the ends of the batteries together. This can give you up to an extra fifteen minutes of battery life.

What do you think?

10 points
Upvote Downvote

Total votes: 2

Upvotes: 1

Upvotes percentage: 50.000000%

Downvotes: 1

Downvotes percentage: 50.000000%