No, according to our description and the information from Makita, the charger and battery are not included in the scope of delivery. The following components, among others, could fit:
3Ah: Makita replacement battery-BL1830B
4Ah: Makita BL1840B (18V, 4Ah)
5Ah: Makita Werkzeug-Akku BL1850B 197280-8
6Ah: Makita BL1860B (18V, 6Ah)
Charger: Makita Battery Pack Quick Charger DC18RD (18V)