Compatible with DeWalt 20V Battery Adapter: convert for DeWalt 20V battery to work for Craftsman for V20 cordless tool, (only adapter included, no battery). Compatible with Craftsman 20V Battery Adapter: convert for Craftsman 20V battery to work for DeWalt 20V cordless tool, (only adapter included, no battery). Portable: this battery adapter is much lighter and smaller than battery, you can take it for business trip easily, (You must remove your battery from the adapter after use). Easy to use, just insert this converter into battery, then insert it into power tools. your battery can work for DeWalt or for Craftsman for V20 power tools. No matter what product problem, please enter the product details page and Click the "DGXYX" under the shopping cart, then click "Ask the question" to send message, we'd solve it right away. Compatible with DeWalt 20V to for Craftsman Battery Adapter