[Use for CORE 20V Tools]: This battery adapter converts for 18V Lithium battery to for PWRCORE 20V Series battery, perfect replacement for CORE 20V lithium battery,which means you can use your a lot of for 18V batteries to for for 20V Cordless Tools,save your money on new PWRCORE 20V Series Cordless Power Tools Battery.(Not Fit Leaf Blower Circular Saw and Lawn Blower) [Compatible with for 18V Battery]: Perfectly compatible with for 18V Lit-ion Battery, works with BL1820 BL1840B BL1820B BL1815B BL1835 -400 BL1845B BL1845 194205-3 194204-5 BL1830B BL1850B BL1860 etc. convert to Replace for PWRCORE 20V BY519601 BY519603 BY519702 Series Cordless Power Tools Battery. [Product Advantages]: This adapter can make listed for 18V lithium batteries use for 20V lithium cordless power tools,and let you enjoy the benefits of extended run-time of for batteries on your existing for 20V tools.Replacement Battery for 20V V20 Series Cordless Power Tools AG290201 AG290202 AG2902-10 AG2907-1A AH6552A-10 BL4713-10 BL4714B-10 For more models. [Safe Protection] Solid design, ABS high quality material,High temperature resistance, wear resistance and drop resistance, convenient to carry and easy to use. [Attention]: It cannot be used to charge the battery of a power tool, and the adapter cannot be plugged into any charger. If you need to charge the power , use the for original-battery charger. Color:Black Material:plastic Package Contents: 1 * adapter(battery not include) Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.