Makita 18V LXT Lithium-Ion 5.0Ah Power Tool Battery, BL1850B at Tractor Supply Co.
Makita 18V LXT Cordless Power Head Kit (4.0Ah) w/String Trimmer and Pole Saw w/Bonus Blower, Hedge Trim, Chain Saw (Tools-Only) X2SM14B3ZH2ZC6Z - The Home Depot
Makita Rechargeable Router Trimmer RT50D Cordless Compact 18V ToolOnly Japan New 88381848084 | eBay
Makita 18V LXT Brushless Cordless Couple Shaft Power Head Kit with 13 In. String Trimmer Attachment - Carr Hardware