Note:

- Compatible for 18V B series lithium battery,such as BL1850B(197285-8),BL1840B(197270-1),BL1830B(197602-2),BL1430B(197618-7),BL1820B(197487-6)
- Compatible for BL1850,BL1840,BL1440(196391-6),BL1415(194560-3),BL1815N(196781-3)
- NOT compatible for G Series battery such as BL1813G(196663-9) BL1413G(196882-7) BL1415G BL1430G BL1815G and so on
- NOT compatible for 18v Ni-CD battery such as 1822(194465-7)

Details:

2.0Ah battery:
battery specification: 2000mAh battery
Battery pack group: 1
Number of cell per group: 5
Number of cell total : 5pcs
2000mAh*1 =2000mAh=2.0Ah

4.0Ah battery:
battery specification: 2000mAh battery
Battery pack group: 2
Number of cell per group: 5
Number of cell total : 10pcs
2000mAh*2 =4000mAh=4.0Ah

6.0Ah battery:
battery specification: 2000mAh battery
Battery pack group: 3
Number of cell per group: 5
Number of cell total : 15pcs
2000mAh*3 =6000mAh=6.0Ah