In Order To Convert A Dewalt 20V Battery To A Milwaukee M18 18V Battery For Product Features ?ADVANTAGE?Convert for Dewalt 20V Max battery to Milwaukee M18 18V battery, reuse for your old Dewalt batteries and save your money on new 18V batteries for Milwaukee. ?FULL COMPATIBILITY?Battery converter are fully compatible with Dewalt 20V lithium battery DCB200 DCB201 DCB203 DCB204 DCB206 DCB207 DCB609 and etc. ?WIDE APPLICATION?Use this battery adapter to convert for Dewalt 20V battery to Milwaukee M18 battery, replace for Milwaukee 18V battery 48-11-1811, 48-11-1815, 48-11-1820, 48-11-1822, 48-11-1828, 48-11-1840, 48-11-1841, 48-11-1850, 48-11-1852 and etc. ?NOTE?Adapter can?t be used into any chargers, please remove the adapter when recharge the battery. ?WHAT YOU GET?1 x battery adapter, and come with a 12 months product warranty to ensure your worry-free purchase. Please feel free to contact us if any concerns about this product. Shipping: Shipping is complimentary within the lower 48 US States. We Do Not Ship to PO/APO Boxes, HI or Alaska We Do Not Ship Outside of the Continental US All items ship within 24-72 hours of Payment For large items that require Freight shipping a valid phone number is required to call and schedule your delivery Terms of Sale and Feedback: Feedback is extremely important to us and If you are satisfied with our transaction, please take a moment to leave Positive Feedback. YOUR Satisfaction is our #1 Priority! If there are any issues, PLEASE contact us BEFORE leaving a neutral or negative rating so that we may resolve any concerns. We PROMISE we can make you happy if you give us a fair chance. Returns / Concerns: All items qualify for returns within 14 - 30 days of receipt. Buyer is responsible for return shipping on any item that is not damaged Please be sure this is an item you want before making your purchase. Customer Satisfaction is our TOP priority! All items are IN STOCK at time of listing. Inventory changes constantly and it is impossible to maintain a perfectly accurate count of all items. Please do not penalize us if we have to issue you a refund! Thank You For Your Business!