Customers know Ryobi tools for their highlighter-green color (an abrupt color change from the blue of older models) and their reasonable prices. The toolmaker's battery systems, which include ...

First, let’s clear the air: Optimate is not Optima. The former is a European-engineered brand of battery chargers; the latter is a maker of those red-and-yellow AGM batteries you’ve probably seen in ...

Which car battery charger is best? Those who have faced a dead battery know the sinking feeling and ensuing frustration. Now you have to wait for a tow or shell out for a new battery. But common ...