Battery Adapter Compatible With Makita 18 Volt Nicd And Nimh, Mh Battery. ?Adapter Converter Feature?: This 18V battery adapter can compatible with Makita 18V LXT Li-ion Slide Battery convert to make them apply to Makita 18V Ni-Cad and NiMh power tools 5026DB, 5036DB, 5036DWFE, 6343D, 6343DWDE, 6391D, 8391DWAE, 8391DWPE3, 8443DWFE. So you can use Makita 18V Ni-Cad/NiMh Power Tools. ?Compatible Battery Models?: This adapter compatible with Makita 18V Lithium Li-ion Batteries, eg BL1860B BL1860 BL1850B BL1850 BL1840 BL1830B BL1830 BL1820 BL1815,etc. ?Replace 18Volt NiCad Battery?: Replace old Makita 18V NiCad NiMh batteries 1822 1823 1833 1834 1835 1835F 192827-3 192828-1 192829-9 193140-2 193102-0 193159-1 193061-8. ?Sturdy Reliable?: Made of ABS material, strong and durable. Professional compact design and battery locks tools locks. easy take and Put on. Size about 4.33x3.46x3.66inch. If you have any questions, Please feel free to contact us, We will solve it for you as soon as possible and make you satisfied. ?Using Note?: This 18 volt lithium adapter 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.