Li-ion battery:
Li-ion battery doesn't contain heavy metal,no pollution to the environment.
No memory effect, it can be charged or discharged as you want.
Li-ion battery's energy density is higher than Ni-CD battery,lighter than Ni-CD battery.

Specifications:
Voltage:12V
Capacity:3000mAh
Color:Black/Red
Battery Type:Li-ion Battery Cells
Wattage:30Wh
Package:2*12V 3.0Ah Li-ion battery+1*charger.

Compatible with:
DEWALT DCB120, DCB121, DCB123, DCB127

Fit for:（Please search with "Ctrl+F" )
Dewalt DCD Series: DCD710, DCD710S2
Dewalt DCF Series:DCF610 DCF610S2 DCF813S2 DCF815 DCF815N DCF815S2
Dewalt DCK Series: DCK210S2 DCK211S2
Dewalt DCL Series: DCL040 DCL510
Dewalt DCS Series: DCS310 DCS310S1
Dewalt DCT Series: DCT410S1 DCT411S1 DCT414S1.

Package:
2x Replacement battery

Note:
1 Tips to Get It Running Longer - Battery come with low power due to transport security, it may reach top performance after 3 cycles of full charge and discharge.
2 We recommend using the battery at least once a month and clean the battery contacts using a cotton swab with alcohol when necessary.
3 Recharge the battery when it totally cool down and proper rest while use in high power tools

Guarantee:
30 days money back,and 7*24 hours friendly and timely customer service.