But how do you know just how good of a battery you have? Easy! You familiarize yourself with the ampere-hour rating. This should give you a pretty clear idea. The amper-hour rating tells a great deal ...

These three are the most common ones: volts, amp-hours, and watt-hours. Watt-hours (again, that’s ‘Wh’) are the most useful unit when it comes to energy capacity. If you’re looking to ...

An ampere (the base unit of electric current, often shortened to "amp") is presently defined by an imaginary experiment involving the force between two infinite wires. In the near future ...