If you want your DeWalt batteries to reach their average lifespan, or even go a bit beyond it, you need to take good care of them. For those in need of advice in this regard, DeWalt has explained some of the best ways to protect your nickel-cadmium and lithium-ion batteries for the long haul. First and foremost is to recognize your battery’s limits, stopping usage once you notice a substantial decrease in power from the tool it’s connected to. Don’t attempt to discharge the b...