Eleoption 2x 18V 3000mAh Rechargeable Power Tools Battery For Makita BL1830 BL1840 BL1815 Li-Ion + Dual USB Charger Adapter new 4000mah power tool rechargeable lithium ion battery replacement for makita 18v bl1830 bl1840 lxt400 194205 3 194230 4 bl1815