ECO-WORTHY 25 Watts 12V Off Grid Solar Battery Charger Kit: Waterproof Solar Panel + Adjustable Mount Bracket + SAE Connection Cable +10A Charge Controller for Car RV Marine Boat 12V Battery

This appears to work to charge the Lithium batteries that power my Simrad Fish finder/Chart reader and depth sounder. Its rated output is just about double the wattage of the device the batteries power and it is small enough to just lay it on the flat front seat in my boat ahead of the mast where it gets pretty good sunlight most of the time sailing or all the time rowing. The result is that my 2, 10 Ah 12 V batteries just don't get discharged very much in daylight. When night comes i may have enough power stored to run my chart reader and nav lights at night. i generally don't fish for 24 hours or in winter for that matter.

This solar panel worked great full 25 watts or volts coming out of it. Thumbs-up 👍

Works great so far...holding my breath

About the best solar battery charger on Amazon.We are off grid and use the charger on a number of battery powered units. Being able to easily and quickly disconnect the long cables from the Charger Controller simplifies moving it from one unit to another. The short pigtails on the Charge Controller permit quick disconnect and reconnect of the solar panel and charging cable. That makes it easy move the tangle of wires and panel to other units to be charged. It also simplifies using different charge cables when using an Alligator cable on some batteries or Ring cables hard wired on hard to reach batteries.The solar panel mounting bracket is superior with a cross piece to fully stabilize the panel.

I now own two of these and I still can't get the eco-worthy controller to show only LED 1 which indicates a sealed battery. It always shows LED one and two. The directions are confusing or inaccurate. This controller cannot recognize a battery for what it is. Again I have purchased a small MTTP controller that has no trouble whatsoever identifying what my battery is.___________________I gave this a five stars because it seemed unfair to ding my review over the fact that the controller that came with it to proved to be unworkable. After 6:00 or 7 readings of the directions I was unable to make the controller recognize and AGM battery. The AGM would go under sealed battery but it kept staying on two lights which meant that it was either a lithium battery or a gel battery. You can't run an AGM battery on anything other than sealed or AGM. For that reason I had to move to a tiny MTTP controller that worked instantly and made it very easy for me to link the battery with the solar panel.I think that it's a very nice system and I'm using it to trickle charge and AGM battery over winter. My plan is to buy another one of these and set it up in the same way to trickle charge over winter a typical sealed battery.Here is something you'll really love. I set this up approximately 24 hours before hurricane Helene hit the mountains of Western North Carolina. The solar panel was set up on a 4x4 post with a 2x4 support that formed a cross. The cord on the panel is very long and makes connection into a outdoor storage cabinet very easy. I then connected some green covered ground wire to a 4 ft piece of rebar next to the 4x4 post. I then stapled the ground wire such that it was not going to pull on the solar panel. The result was very pleasing. It's survived 40 to 60 mile an hour winds.I do hope to figure out why I was unable to program the control panel that came with it.

Can't wait to pitch it on my gate

First of all, I decided to buy this product because I used an electric lunch box in my car for several days and my battery started to need a charge. I didn't want to be disconnecting the car battery to charge it, so I saw some very good reviews about this product. It even comes with a USB charger and I thought it would be very useful.To start with, the product doesn't turn on if the battery isn't connected, which is strange because it had almost 18V input that the solar panel sent to it and so my idea that if one day I didn't have a charger for my cell phone I would just put it on the solar panel without needing a battery died. It does charge through the USB port, but in reality it is powered by the battery and not the panel, which causes a discharge in the battery.I did several tests and they didn't last long because instead of charging my battery, it discharged it. I attached photos of the voltage that went down instead of up.My idea was to keep using my electric lunch box to heat my lunch and leave the panel charging all day so that when I finished work I would find the battery maybe not fully charged but with some charge, but it didn't work, I don't know if the product has some defect but it didn't work for me.It should turn on only with the solar panel on sunny days to be able to charge with the USB port without needing a battery and above all charge the battery because it didn't do that it only consumed voltage from the battery to turn on the module.

Best purchase i made i use this solar panel and battery to operate my chicken door works perfectly good solid mounting brackets 2 thumbs up