You can purchase the Black & Decker 20V Max 10 inch chainsaw as just the tool alone without any batteries, or you can choose the package with a 1.5Ah 20V lithium-ion battery and charger or with an extra 3.0 Ah battery. In addition, you can purchase extra batteries here: 3.0 Ah Battery [amazon fields="B078X6CFT7" value="thumb" image_size="medium" tracking_id="bd20vmax-20"] 4.0 Ah Battery [amazon fields="B00HH4K8N6" value="thumb" image_size="medium" tracking_id="bd20vmax-20"]