When your car refuses to start, the culprit is often a weak or dying battery. The TOPDON BT100 Car Battery Tester aims t ...
Confused by kilowatts? Can’t tell an anode from a cathode? Here is a simple guide to the jargon likely to be tossed around at Tesla’s Battery Day on Sept. 22.
Is it OK to check your phone’s power bank Can you charge your tablet in the overhead bin? What about a cordless hair dryer?