Battery Adapter For Worx 20V Lithium Battery To 18V Ni-Mh Cordless Power Tool Product Features ?Converter Function?: The battery adapter can make listed 20V max lithium batteries use on WORX 18V Ni-MH cordless power tools , and let you Enjoy the benefits of extended run-time of Li-Ion Batteries on your existing 18V tools. ?Applicable Battery Models?: The bottom of this adapter can allows for use of 20V lithium batteries, Compatible with Worx WA3520 WA3525 WA3575 WA3578 WA3511 WA3512 WG153 WA3512.1 WA3522 WA3523 WA3544 WA3671 WG151s WG251s WG255s WG540s WG545s WG890 WG891 20V Batteries etc. (Default without battery) ?Replace 18V NiMH Battery?: Replacement for Worx 18V Ni-Mh Battery. Compatible with Worx 18 Volt cordless power tools models WA3127 WA3152 WG150 WG150s WG152 WG250 WG541 WG900 WG901 WG901.1, But can not fit for Worx 20V tools. ?Reliable and Convenient?: This cordless power tools adapter made of ABS + PC material, strong and durable. Professional compact design and easy installation. Convenient to carry and easy to use. Size about 130x86x93mm/5.12x3.39x3.66inch(Approx.). ?Using Notes? 1.CANNOT charge battery with this Adapter! Please remove the adapter before charging battery (Use the original brand battery charger) ; 2. Maximum initial battery voltage(measured without a workload) is 20volts,Nominal voltage is 18volts. 3. Please remove it from the battery when not in use, Safe to use; 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!