Features:
- Output voltage of 6V, charging for battery of 3.7v 
- Suitable for lead acid batteries and lithium batteries. 
- With high efficiency Monocrystalline silicon solar cell. 
- DC output it can transfer alligator clips, USB, cigarette lighter, etc. 
- Built-in blocking diode, prevent your batteries from discharging backwards through your solar panels at night when charger's voltage is lower. 
Parameters:
- Maximum Power (Pmax):10W 
- Open Circuit Voltage(Voc) : 7.2V 
- Short Circuit Current (Isc):1.82A 
- Maximum Power Voltage(Vmp):6V 
- Maximum Power Current(Imp):1.66A 
- Maximum System Voltage(Imp): 1000DC 
- Size: 440*190*3mm