DESC: CTA NiMH D Rechargeable Batteries are Fast Charge Capable and have built-in thermal protection CTA NiMH D Rechargeable Batteries can be used as a exact replacement for standard D batteries in most applications CTA NiMH D Rechargeable Batteries can be recharged up to a 1000 times, and have no memory effect CTA NiMH D Rechargeable Batteries can be used in Flashlights, Stereos, Remote Control Cars, Portable Radios, and all other electronic equipment using D batteries CTA NiMH D Rechargable Batteries are completely environmentally Friendly