Our easy-to-follow guide to car batteries looks at the causes of a flat battery, how to look after them and the options for ...

Life test measures how a battery endures repeated charge-and-discharge cycles at hot-climate engine-compartment temperatures. The more cycles endured while maintaining a higher voltage, the higher ...

Once you get past picking the ideal Prius years to buy, you should look into the linchpin of its reliability, the battery. A healthy hybrid battery keeps the car running smoothly and maintains ...

It is worth remembering that we are still in the very early days of electric cars, and for now repairs are generally carried out under warranty. Can I buy an extended EV battery warranty?