A “quick charge” can very rapidly (but safely) prepare a battery for use. A few battery chargers also offer a “jump start mode”, which can start a car or motorcycle with a dead battery ...

Plus, if you jump-start a vehicle ... Ibbotson suggests using quick connectors, often called pigtails. These go onto the battery terminals and allow the charger to quickly plug in and disconnect.

As a quick aside, if your battery has died ... without causing damage through overcharging. First, we’ll start with the battery charger. As the name suggests, this works a lot like any other ...