- ALLPOWERS car battery charger can charge 12V batteries with the power of the sun and create 7.5 watts of energy, the efficiency of SunPower is 23.5%, while most monocrystalline panel in the market is only 17%
- SunPower solar panel works in all daylight conditions and is water resistant（rain drop is OK, but not completely waterproof）for added durability
- Works with automotive, motorcycle, tractor, boat batteries, car battery and more
- Built-in blocking diode to prevent reverse discharge, not only maintains the battery lifetime but also extends its usage life.
- 18-month warranty
- Solar Panel: SunPower panel 12V 7.5W
- No-load voltage: 18-23VDC
- Maximum Load voltage: 18V
- Output current: 270-410mA(0.27A-0.4A)
- Size: 320x128x4mm/12.6*5.0*0.12inch
- Weight:0.323kg/ 11.4oz
- 1 x Solar car battery maintainer maintainter
- 1 x Cigarette lighter plug(power cord 1.5m)
- 1 x Battery charging clip line(power cord 1.5m)
- 4 x Suction cupds
- 1 x User Manual
(1)It is suggested to unplug the charger at night,for it needs sunlight to charge devices, remaining power of your battery is no less than 60% before attaching i
(2)This item is just battery maintainer, keep a battery topped off
(3)Make sure a “live” lighter socket: the socket gets power at all times from the battery, you can test this by plugging in a phone charger or other accessory with the ignition off--if the accessory turns on, that means the socket is ""on"" at all times.
(4)For modern vehicles, there are body control modules (computers), alarm systems, immobilizers and lock monitoring. All of these units will rob electricity from the battery when it is not in use. Also, cars batteries naturally discharge itself when not in use. For such cases, it is suggested to leave the battery charger connected with batteries for the whole off-season to offset the nature loss, but for vehicles outside the garage, an off-gird solar battery maintainer may be the best choice.