The solar charger has a high solar cell efficiency of 22.5%, and output voltage of 17.5V with 4.8W of energy, perfect for maintaining batteries of automobile, motorcycle, tractors or even boats. It also offers you 2 ways of charging:
1. Simply plug the included cigarette lighter plug in the socket and place the panel facing the direction with the most sunlight possible.
2. You can also use the crocodile clips to connect it directly to the battery. You can mount the panel on your windshield.
Please Note: The unit is not for charging your vehicle's dead battery. It's best as a solar battery maintainer that keeps your battery charged to lengthen its life expectancy. Also, it is suggested to unplug the charger at night, just in case the blocking diode doesn't prevent all reverse discharge.
Product Specifications Product Net Weight: 1.6Kg Product Dimensions: 440 x 350 x 15mm Cells Type: SunPower Panel 4.8W No-Load Voltage: 17.5-21V DC Load Voltage: 12V Short-Circuit Current: 0.34A Working Temperature: -20°C ~ 65°C/ -4°F ~ 149°F
Package: 1 x Car solar battery charger 1 x Car charger cigarette lighter plug 1 x Battery charging clip line 4 x Suction cupds 1 x Manual