Used DeWALT battery DE9280 28V 2,2A Li-Ion

Innovative lithium-ion battery at the nano-phosphate-based technology enables more than 2,000 charge cycles
     No memory effect and no self-discharge for maximum productivity

Specifications:
     Battery Capacity: 2.2 Ah / Li-Ion
     Battery Voltage: 28 volts
     Special Features: Nano-Phosphate battery technology
     Weight: 0.9 kg 

Compatibility (applies only with tools designed for Li-Ion battery):
Can be used with all DEWALTdevices with power supply 28V. 
Example models: DC351, DC315, DC318, DC310, DC413, DC810, DC910