Battery problems rarely arrive out of nowhere. Long before a car refuses to start or a phone dies at 20 percent, small changes in behavior reveal that the power source is struggling. I look for those ...

Car batteries often appear to fail without warning because the early stages of deterioration do not produce symptoms that drivers can detect. A battery can hold a normal resting voltage even when its ...

Consider yourself pressed for time if the battery warning light turns on while you're driving. The red or amber light generally means one of two things: Either your 12-volt battery is weak and on the ...