DACHMA 4000mah for makita BL1830 18V volt Lithium Ion Replacement 4.0Ah LXT New Battery Voltage: 18V Nominal Capacity: 4.0Ah; Actual Capacity: 4000mAh Compatible with: Makita 194205-3, 194309-1, BL1845, BL1830, LXT400 Dimensions: (4.33 x 2.95 x 3.15)" / (11 x 7.5 x 8)cm (L x W x H) Powers your yard tools for efficient, wireless operation