Consideration of choosing the additional power DeWALT14.4 volt XRP battery. This high capacity NiCad (nickel-cadmium) battery provides 40 percent more to run than standard NiCad. This means that you can work longer drive more screws, drilling more and spend less time exchanging and recharging batteries. The XRP pack, which means extended run-time performance, is suitable for all DEWALT 14.4-volt cordless tools and chargers, with the exception of its instruments Univolt. Finally, remember to recycle the old batteries. – Joseph Truinas What's in the Boxon rechargeable 14.4-volt XRP NiCad (nickel-cadmium) battery designed to power the entire line of DeWalt 14.4 volt tools, the DEWALT DC9091 XRP 14.4-Volt 2.4 Amp Ni –