30W Solar Panel Kit 12V, Monocrystalline Solar Panel Charger Off Grid with Intelligent Waterproof Controller+ Adjustable Mount Bracket for Boat Car RV Motorcycle Marine Automotive Camping Roof

After reviewing several panels and determining that I needed one with the capability of being weather resistant, I decided to purchase the 20W SOLPERK Solar Panel Kit 20W 12V, Solar Battery Trickle Charger Maintainer.Initially, I read various concerns about overcharging the battery were stated on other SOLPERK reviews, as well as some hardware issues, but as this one had no reviews at the time, I thought I would take the chance to use this panel to charge a 12V battery that I use to provide light to my stand-alone shed.Installation was straightforward and aside from finding a way to thread the wire from the roof of my shed to the battery, there is nothing complicated about the installation. (I did create a bracket to prevent damaging the roof, and would recommend that approach to prevent inducing leaks on a shingled roof.)After set-up, I didn't see a green light (indicating complete charge) on the battery indicator, but since I hadn't charged the battery in a while, I thought I would give it time. I did monitor the output of the solar cell (roughly 14V depending on sun exposure) and noted that with no load, my battery was just about 12 volts. After a day, the voltage on the battery popped up to about 12.4V, but I still had a red light on the battery charge indicator. By day 3, the battery light was green and the battery was at full capacity.Testing a week later, I drained the battery a bit by leaving some lights on for about 1 hr (12 V LEDS). The battery charge light was red for a period of time and then went green again. The battery had maintained full charge.At this point, I've had the panel connected to the battery for about 2 weeks and all seems well. Should I see the battery overcharge or diminish in capacity, I will update my review, but until that time comes, everything seems to be working well.

For the longest time, I had a difficult keeping my batteries charged on my bike atv and lawnmower. Now they all stay fully charged. Just place it in a sunny spot and forget about it.

It was super easy to use. I just moved the chair/panel to maximize the sun for charging. Kept my RV battery fully charged for my entire trip.

Used this for a 5 day boon docking trip and it kept my batteries over 12 volts the entire time. Even when we ran chargers for phones and drone batteries all night it quickly charged my batteries back up from 10v to 12.5v once the sun came up.

As simple as it gets. I am able to keep the batteries fully charged when my equipment isn't being used. The yard has no power and I don't want the expense of a generator. Great product. 2nd unit I purchased

Para usar iluminación a un motorhome que no le servia su sistema original

Solid construction, a little heavier then expected.

doesnt work