ALLPOWERS 18V 12V 5W Portable Solar Panel Car Boat Power Solar Panel Battery Charger Maintainer for Automotive Motorcycle Tractor Boat RV Batteries

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Attention:
(1)Remaining power of your battery is no less than 60% before attaching it
(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.

Easy to use
Just plug this solar charger into your vehicle's 12-volt lighter socket and position the panel to pick up the most daylight possible. Or, if you prefer, use the included alligator clips to connect it directly to the battery. (you can mount this solar power panel on your windshield with the two suction cupds or fix it on the sun visor with the back strips)

Specification:
* Solar Panel: Monocrystalline silicon 18V5W
* No-load voltage: 18-23VDC
* Load voltage: 18V
* Output current: 250-280mA(0.2A-0.28A)
* Size: 320x128x4mm/12.6*5.0*0.12inch
* Weight:0.323kg/ 11.4oz

Package:
1 x Trickle battery charger maintainer
1 x Car charger cigarette lighter plug(power cord 1.5m)
1 x Battery charging clip line(power cord 1.5m)
4 x Suction cupds
1 x Manual

Worry-free warranty
18-month product warranty for every purchase from ALLPOWERS