18V18W Solar Car Battery Maintainer Charger

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ALLPOWERS 12V Solar Car Battery Charger is the perfect solution for charging the

batteries of car, motorcycles, automobiles, snowmobiles, tractors and more by solar when

the battery is in the state of losing power and power shortage, maintaining the battery

effect, extending its usage life. Made of durable ABS plastic and Mono-crystalline silicon

solar cells, this unit can charge devices in all daylight conditions. Constructed with a

built-in blocking diode to prevent reverse discharge, this solar panel is easy to install and

completely maintenance-free. Get the ALLPOWERS Solar Car Battery Charger


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 suction cups or fix it on the sun visor with the back strips)


Optimal power(Pmax.): 18W±0.25W @1000W/AM 1.5 25℃

* Working voltage(Vmp): 18V±0.3V

* Working current(Imp): 1A±0.15A

* Short circuit current(Isc): 1.15A±0.15A

* Open circuit voltage(Voc): 23.6V±0.8V

* Temperature coefficient of voltage: (0.065±0.015)%/℃

* Temperature coefficient of current: - (160±10)mA/℃

* The temperature of the power: -(0.5±0.05)%/℃

* Maximum system voltage: 700V

* Ambient temperature :-40℃~85℃(-40°F~185°F)

* Water resistance: IP65

* Size: 420x280x2mm/16.5*11*0.08inch

* Weight: 345g/ 12.5oz/ 0.76lbs


AP-SP-001-BLA(18V18W Solar Car Battery Maintainer Charger)--click to expand it
1.Is this heat resistant? i.e. Can i mount this inside my windshield while parked in the summer?
2.1.Could I connect this to a Charge controller? (Eg this one -
http://www.iallpowers.com/index.php?c=product&id=371) And use it to charge a 12V lithium battery?
If yes ... what connector would I need to connect it to the charge controller?
Yes, you should pair the panel with controller. A panel greater than 15W should chain with a controller to prevent from overcharging.
Normally there are 6 screw-down screws for tightening the cable, you need no extra connector actually.
One thing we should remind u first, for lithium battery, please check the manual to select the proper batteries type for pairing the battery system before the operation.
B02=LITHIUM ION 3s 3x3.7V=11.1V
B03= LIFePO4 4s 4x3.2V=12.8V
The default setting on our controller is for lead-acid battery(B01).
3.Should I keep it plugged it for day and night?
A blocking diode is included to prevent reverse charging from battery so it is OK to leave it plugged day and night.
However,one thing we need to remind you: pleae do remember to remove/disconnect it before starting you engine or driving every time.
Electrical surges from the car engine when starting and running may damage the diode inside, or you may need to pair your system with a solar regulator to better protect your battery from draining.
Trips: It is suggest to mount the panel on the central of vehicle’s window (Do avoid UV protection area)so that you won’t forget to disconnect/remove it before starting cars.

Product manual download