The DEWALT NiMH Battery Packs are a high capacity battery with 50% more run-time than NiCd batteries but is the same size as a 2.0Ah NiCd battery. It has excellent electrical characteristics with long battery life and no memory effect. Highly efficient and robust in extreme applications and fits all existing DEWALT 18 Volt tools, except Li-Ion machines with slide-on style batteries.
The DEWALT DE9503 Battery Pack has the following specification:
Battery Capacity: 2.6Ah.
Battery Chemistry: NiMH.
Voltage: 18 Volt.