DeWalt is one of the leading makers of cordless power tools. Its chargers have indicator lights to provide important information on battery status and health.

A beefed up battery is a good start, but the lamp’s tiny solar panel has no hope of topping off the batteries outside of Death Valley. To ensure that they get a nice full charge, a small jack ...

If the charger displays no lights when you insert a battery, it's a sign that the battery pack may be faulty or that there is an issue with the charger itself. If this happens, DeWalt recommends ...