20W 12V Solar Panel kit Battery Charger Maintainer + 10A PWM Solar Charge Controller +Solar Cable for Car RV Marine Boat 12 Volt Battery Off Grid

I bought this solar panel to trickle charge a car battery in the shed. I use the battery for a 12v lighting system and a small inverter as I have no mains power in there. Its May at the moment and we do have a reasonable amount of sun but I have to say the panel is doing an excellent job of keeping the battery topped up. The panel doesn't have much in the way of mounting brackets, there are simply four holes in the inner surround of metal. It was a bit fiddly but with use of some suitable nuts and bolts I fed the bolts through the holes in the surround, through the wall of the wooded shed and put washers and nuts on the inside. I then put a bead of sealant around the panel to stop the rain dripping down the back. Although fairly generous the leads from the panel to the power controller were not long enough for me so I ended up extending them which is straightforward enough just ensure you get the polarity right. Its worth using good quality wire as thick as that supplied (at least) so you don't get too much of a voltage drop. The power controller isn't the best or the most complex but I found the default settings work fine for my purpose, just follow the instructions to connect everything in the correct order. You can alter the charge voltage and cutout voltage if you wish. The screw fittings for wires on the controller are a little unconvincing but seem OK in practice. At the price point I'm pleased with this panel and I now have exactly the setup I wanted in my shed.

I have bought a few of these and they seem to work very well I have a couple in my van which aren't used very often and it seems to keep the battery okay

Mounted in the wheelhouse of my boat to keep 90aH battery topped up! Handy USBcharging points on the control panel for charging mobile phones and tablets. Well proven over nearly two years since purchase. A little bit more delicate and flimsy than I expected. Different and/or alternative mounting options would be useful.

A good little solar panel, that does what it said it would. I have it charging a 12v car battery for electric fencing for my pony, to save me lugging it across the field and home to charge up. So far so good, keeping the battery charged. The instructions for its use are a bit nondescript, I went on to you-tube to work out how the wee wires went in and how the controller works.

Bought this to set up some lighting in my shed. Fairly straightforward to fit it all together although the instructions are tiny and I had to look up most of the terms. Had to replace the batteries on the wife’s mobility scooter so the old ones will be useful just for lights. So far so good, it all seems to be working OK after a couple of weeks, battery staying charged enough for lights. Made a wooden frame to attach the quite sturdy panel to the side of the shed (not much direct sunlight this time of year but will be in a few weeks time) and put the controller inside. The lead was a bit short so extended it using some 13 amp twin and earth electrical cable which seems to work alright. Overall a good buy for the price and useful as my first foray into a solar power project and my led light strips work fine, who knows I may be expanding it soon!

Once you understand the wiring combination, this is easy to set up and install. My battery was flat, I set it working and one week later (the earliest I got to check it) the battery was fully charged. The system has a regulator to adjust the amount of charge so it doesn’t fry the battery. Would advise anybody looking to purchase to get one immediately 👍

Good idea, pity had to send back, didn't work

Bought a second unit and this seems to be working so far. I tried another because I couldn't see a decent competitor at this price point and most people were pleased with it. I do wish someone would make a unit with two output circuits to charge dual leisure batteries. It is really not a good idea to parallel up dissimilar batteries and try to trickle charge them with a single unit The first one of these that I bought failed after 2 week - not charging. Tried it an another battery at 12.3V - ie about 50% discharged - unit still not charging. suspect it was actually discharging ( slowly ) the leisure battery which I had it connected to. checked all contacts etc etc . Solar volts and battery volts correct on pin ins to controller. Returned it to Amazon. The cable from the panel to the control box is too short and can’t be changed. I would like to see 2m at least of heavier gauge cabling to keep the voltage drop the same. On the output side of the control box, again the cables provided are too short but you can use heavier gauge into the screw terminals.

Très bien, cependant prévoir un stockage (batterie) il est depuis 2 ans dehors (été comme hiver) et pas de PB

Bien funciona bien

Works as described little on flimsy side would recommend and purchase again no complaints as it does what it says and reasonable priced prompt delivery

We bought this to charge a moped battery which powers our off grid drip watering system.

Es funcional, de regular a buena la calidad.