Makita cordless bl1850 5 196672-8 Original makita 5.0Ah li-ion battery. Bl1850 5.0Ah forrbedret edition of what known bl1830 same weight as 3.0Ah , new high capacity cells together additional protection meet shock can left in existing chargers dc18ra & dc18rc & dc18rd weight: 616 g Brand: Makita