The Thunder 620 Charger is capable of charging a variety of batteries. It has the ability to charge up to 300 watts and deliver that power with up to 20 amps of current. This charger has a single output with high current capacity. The Thunder 620 will accept LI-PO Lipo, Li-Ion, or Li-Fe batteries up to 6 cells. It will also charge Nickel variants up to 17 cells and Lead Acid batteries up to 24Volts. With multiple safety features and data processing, this charger informs the user of battery condition and charge state at any time. This charger does not have an internal power supply so an external DC power of 10 ? 28 Volts will be required. A 12v battery from your car will suffice, however you do want to ensure you have ample capacity in your car battery so you are not left stranded because of this chargers powerful charging ability. 

Special Features:
Operating Software ? The operating software in this charger is executed with mutual links and communications with every component to prevent error to provide maximum safety. The charging algorithm is multifarious allowing you to select the best program to suit your requirement.
Large LCD screen for displaying various charge and discharge information graphically
High-Power output circuit ? The Thunder 620 Charger employs the circuit that features high power output which are powered as much as 300 watts. As a result it can charge and discharge batteries in a quick timeframe.
Fan cooling system provides efficient cooling for the powerful Thunder 620 Charger
Voltage balancer for lithium batteries at output
Monitors lithium voltages on discharge preventing abnormal unbalanced discharge of battery cells
Accepts various types of lithium batteries. Li-Io, Li-Fe, and LI-PO Lipo

Specifications:
Operating voltage: DC 10~28 volts
Charge power: max. 300 Watts
NiCd/MH: 1~17 cells
LiIo/LiPo/LiFe: 1~6 series
Pb: 2~24V
Charge current: 0.05 to 20.0A
Discharge current: 0.05 to 20.0A
Size: 140*95*27MM

Required to Operate:
Sufficient power supply with enough power to support a 300watt 20amp rated charger