For use with Dremel rotary tool models 7700 and 7300</br>Has a three-hour charging time</br>Charges both 4.8 and 7.2 volt batteries</br></br>Product Description</br></br>Battery charger for Dremel 4.8 and 7.2 volt batteries. Always remember to have a spare battery pack charged up so you don't have to quit working to recharge your battery and keep your cordless rotary tool charged up and ready to go. For use with Dremel Cordless Rotary Tool Models: 7700 and 7300.</br><br/>http://www.amazon.com/gp/product/B00LSIG39K