Cigarette lighters are either "switched" (acc on/off) or "always on". If you have an un-switched cigarette 12v outlet, the charger would work. You should have a charge-controller between the solar panel and the solar panel to prevent over charging which will also destroy your battery. I've been using this method with a cheap Amazon charge controller to keep my jeep happy in PA winter. Don't ignore the charge controller, as it most likely states this disclaimer in the panel insert. OK for maybe temp or short durations like 3 days, but not for long term solution without the charge controller.

Thanks for the helpful review. Thumbs up!

On your trailer, you have room to install several solar panels large enough to run 120volt items like a refrigerator or small electric stove, with a large battery bank you can store this energy for trips to the track or camping out, even run power tools like a table saw. I say this becuse a lot of guys use these trailers to do contract work out of. The roof of the trailer is pretty large. You may be able to generate enough power to run some Led lamps inside the house for a few days if you have a power outage in your area. Or work lights at a job, camp seight,or track. Using LED bulbs will conserve the energy you got stored.

Well Done !

thanks, my old pickup had a battery drain the drains down the battery after a day or two, gonna give it a try and also alert my neighbor who has two vehicles he doesn't drive very often, and yes, it is a model I should check that the cigarette lighter stays powered

Thanks for sharing. Gonna give this a shot. I might purchase a charge controller for peace of mind. Thanks buddy. I watched the Sunway video and it says it won’t overcharge your battery so now I’m wondering if adding a solar charge controller is worth the extra $$.

Thanks for the video. I am doing this for my 2009 F150/Lariat 4x4, its mostly a farm truck now and after a week or two the battery is dead. someone posted elsewhere the be careful about using the solar panel inside when its 90+ outside as the panel will also heat up and could damage the ABS plastic.

On the instructions it says to get a regulator. Did you get one and are your panels still working?

You Need to show how you did it. Great video!

Just a heads up....any shading on the panel will significanly drop its output. The handle on your trailer casting shade would effect it.

Does it need a regulator?

I purchased the Schumacher SP-200 and found the striped wire to be negative. Is it normal for what seem to be a reverse polarity?

Does it have diodes to protect the panell while driving to block the reverse voltage? Or you have to disconnect every time.

Thanks for the video. I need a similar panel for a 12v battery for my e-scooter, but it needs to connect directly to the batteries. Anyone know if the solar panel featured in this video can do that?? Or, does anyone know of suitable trickle chargers for this application??

Does that Solar pannel allow for only 1 way flow of electric? I have used cheap ones for a " solar generator" which actually ended up discharging the battery.

Will it work through cig lighter on 2007 yaris?

Can a solar panel trickle charger be used to maintain an AGM chemistry battery? I have been told; "No", because an AGM battery requires a voltage to charge between 13.8 to 14.6 volt and requires a minimum amperage of 7.5 VDC. Apparently all charge controllers intended for 12 VDC trickle charging stop charging when the battery reaches 12 VDC to prevent over charging, which is inadequate for AGM batteries. Can you, or other in the comments confirm this, or have experience with AGM battery charging?

Often times you have multiple cigarette lighter 12v outlets in a new car, maybe one also in the console or trunk area. Often times the extra outlets are always on while the primary outlet is disconnected when the vehicle is off.

Do you have to worry about an overcharge and damage to the battery. Can I leave it on while my rv is in storagr

Can these chargers stay in the lighter outlet while driving, or do the need to be unplugged while the car is going?

Or, if the lighter does not work when the car is turned off, and the charger is hooked up to that cigarette lighter, could that actually drain the battery? Thank you!

After almost 4 months, how is it working now? I have a car noth driving much and no power outlet around, worry this solar maintainer doesn't work well.

Tämän paneelin ulostulo on pieni, koska digitaalinen näyttö ottaa melkein sen lähdön, joten sammuta se.

Do you have to use the cig lighter?

Does the charge controller know when to stop charging?

They won’t mess up the alternator ?

Has a GT350 and can’t afford to put it inside the garage with an actual trickle charger hooked up to the wall?

I bought this same one, my problem was that when I left it hooked up to the cigarette lighter at night, it drained my battery! Also, would it be better to hook it up with the cables directly to the battery? And do I take it off at night and on rainy days as well? Thank you! CANCEL

What brand or where did you buy??

Wouldn't charging at 20v over time be bad for the battery?

Car overheat has always been a great waste of potential energy

I just watched the entire video to see how you wired the car. Oh well.

Very informative, but the way you move the camera around I feel like I just got off a roller coaster. Seriously, made me nauseous.

Have one on ford fusion hooked directly to battery .not worth shit

STOP turning your head and talking away from the mic

You have the money for a Shelby but not enough money to keep it indoors? Priorities. 🙄🙄🙄🙄🤦‍♂️🤦‍♂️🤦‍♂️🤦‍♂️