Batteries are terrific sources of power, especially when it comes to home tools. Cords can tangle and finding outlets may be tricky, while gas-powered devices can be loud, messy, and pollutive.

Black + Decker replacement batteries can cost anywhere from $30 to $70, depending on the voltage. Aftermarket batteries tend to be less expensive but may not come with any guarantees or warranties ...

which is especially useful when working outdoors in the sun or in warm parts of the house. Black + Decker replacement batteries can cost anywhere from $30 to $70, depending on the voltage.

Batteries are terrific sources of power, especially when it comes to home tools. Cords can tangle and finding outlets may be tricky, while gas-powered devices can be loud, messy, and pollutive.