The battery bounce test, popularized in online videos, has led to the common conclusion that a high bounce means a dead battery. But researchers at Princeton University have found that bouncing is not ...

The battery bounce test, popularized in online videos, has led to the common conclusion that a high bounce means a dead battery. But researchers at Princeton University have found that bouncing is not ...

There's an easy way to test if a battery is charged. n Charged AA alkaline battery n Uncharged AA alkaline battery STEP 1: Hold the charged AA alkaline battery so the positive end is pointing downward ...

Working out which of your batteries are dead and which still have some juice in them can be a nightmare - but one 'genius' test could change everything. Although many of the devices we use daily have ...