If your bike didn't start up this morning, or if you are simply wondering how to check the condition of your old battery before it gives out on you, the answer lies ahead. There are many ways to test ...

Engineers who want to maximize the battery life of theircell phones and e-readers may now have an easier way to do it. A new sourcemeasurement unit with built in "seamless ranging" technology makes it ...

Because of its mass, a battery takes a long time to change temperature. If a vehicle sits out all weekend in a zero-degree environment, it might take 30 hours to warm up the battery. Use the outside ...