2Pack Power Elektro BL1850 5.0Ah 18v LXT Lithium -Ion Battery compatible with makita BL1830 BL1840 BL1850B BL1860 18v tools with LED indacter: Amazon .co.uk: DIY & Tools
18V Battery and Charger for Makita LXT ASUNCELL 18V 5.0Ah Battery and DC18RC Rapid Charger Set for Makita Compatible with All Makita 14.4V-18V Li-ion Battery BL1815 BL1830 BL1850 BL1430(UK Plug): Amazon.co.uk: DIY