- ALLPOWERS SunPower car battery maintainer can charge 12V batteries with the power of the sun and create 18 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 (raindrop is OK, but not completely waterproof)
- Built-in blocking diode to prevent reverse discharge, not only maintains the battery lifetime but also extends its usage life.
- Perfect solution for charging the batteries of car, motorcycles, automotive, snowmobiles, tractors and more by solar when the battery is power shortage, maintaining the battery effect, extending its usage life
- 18-month Warranty
- Solar Panel: SunPower panel 18V18W
- No-load voltage: 18-23VDC
- Load voltage: 18V
- Output current: 800mA-1A
- Water resistance: IP65
- Size: 420*280*2.0mm/ 16.54*11.02*0.08inch
- Weight: 345g/ 12.49oz
- 1 x 12v Trickle battery charger maintainer
- 1 x Cigarette lighter plug(power cord 1.5m)
- 1 x Battery charging clip line(power cord 1.8m)
- 1 x User Manual
(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.