The Qinizx Battery Adapter Is Designed To Convert Makita, Ion Makita Battery. Product Details ?Adapter Converter Feature?: This battery adapter can compatible with Makita 18V Lithium li-ion slide battery to make them apply to RYOBI 18Volt cordless tools, with this converter can let you enjoy the benefits of extended lithium ion battery operation time on existing 18V tools instruments. ?Applicable Battery Models?: The bottom of this adapter is only compatible with Makita 18V lithium Li-ion batteries, eg. BL1815 BL1815B BL1820 BL1820B BL1830 BL1830B BL1840 BL1840B BL1850 BL1850B BL1860 BL1860B BL1845 BL1890 BL1890B 18V Li-ion battery. ?Replace 18V NI-CD/Ni-MH Battery?: Replacement for Ryobi P102, P103, P104, P105, P107, P108, P109, P145, P122, P161, P189, P190 Lithium-Ion battery and fit for Ryobi 18V ONE+ System Cordless Power Tools. (NOTE: Not fit for Ryobi cordless saw P551, for Ryobi 18v radio, lamp eg, for Ryobi P742 P746) ?Reliable and Convenient?: This Cordless Power Tools Adapter made of ABS material, strong and reliable. Professional compact design and easy installation. Convenient to carry and easy to use. Size about 4.33x3.07x3.30inch. ?Attention?: Can not be used for power tool battery charging, this adapter will not fit into any chargers. If you need to charge your power tool batteries, please use the original battery chargers. Payment We accept PayPal and credit cards via PayPal. Taxes - US We collect sales tax, as required by law. Shipping We make every effort of shipping within 3 business day of payment clearing. The estimated delivery time is 2 - 5 business days from the shipping date. Policies If you do need to return your item, please contact us via email (you will receive an email when your product ships with additional details - Subject: Important information about your purchase). You will then be provided with a return shipping label and packing slip. Pack the item carefully. Include the packing slip, apply the shipping label, and return the item within 30 business days of the date you request a return, or your return will be canceled. Once we receive your order we will inspect the return. Please allow up to 5 business days of receiving the returned item for your refund.