This product is a rapid charger with a high performance microprocessor and specialized operating software.

Specifications:
Operating Voltage Range DC 11 - 18V
Circuit Power Max. Charge Power 50W
Max Dscharge Power 5W
Charge Current Range 0.1 - 5A
Discharge Current Range 0.1 - 1A
Current drain for balancing Li-po 300mAh/cell
NiCd/NiMH battery cell count 1 - 15 Cells
Li-ion/Polymer Cell Count 1 - 6 Series
Pb Battery Voltage 2 - 20

Highly recommended user to use with Suny DC / AC adapter , please check out:
http://airsoft.tiger111hk.com/p15954/SUNY-AC/DC-Adapter-%28Model-:-PD1205%29/product_info.html