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
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Availability:
In Stock.
Arrives
Tuesday, Apr 28
Size: 25 W Kit
Features
- [Ideal for Keeping Batteries Charged] Designed to charge and maintain 12V rechargeable batteries such as LiFePO4, Lithium Ion, AGM, SLA, GEL, EFB, MF. Keep batteries charged for trailer, tractor, truck, boat, motorcycle, RV, car, lawn mower, water pump, gate opener, electric fence, etc. Under full sunlight, the 25W solar panel kit can generate 100Wh of electricity, and it enters maintenance mode once fully charged.
- [Durable & Reliable] Equipped with high-efficiency monocrystalline silicon cells, this 12V solar panel offers a long lifespan of up to 25 years and a low degradation rate of just 0.5% per year. Its low-iron tempered glass surface and corrosion-resistant aluminum frame ensure it is 100% waterproof and rustproof. It can withstand harsh weather conditions like sandstorms, strong winds, thunderstorms, blizzards, and hail, withstanding wind pressure up to 2400 Pa and snow load up to 5400 Pa.
- [Charge devices and maintain car batteries] The 10A PWM charge controller, with a USB 5V/2A port, charges small devices and acts as a 12V car battery solar trickle charger. Two indicator lights show charging and discharging status. It protects against overcharge, over - discharge, overvoltage, short - circuit, and reverse current. It also supports solar input expansion by paralleling more 12V 25W solar panels.
- [360Adjustable Mount] Equipped with solar mounting brackets, the mounting angle can be adjusted for better sunlight reception. Pre-drilled holes on the back of the panel facilitate quick installation and securing. The connection cable is SAE connector, easy to connect and install.
- [What's in box] You will get 1pc 25W mono solar panel, 1pc 10A pwm charge controller, 1pc 1.54ft cables with alligator clips and 1pc 1.38ft cables with O-ring terminal.
Brand: ECO-WORTHY
Material: Monocrystalline Silicon
Product Dimensions: 16.8"L x 13.4"W x 0.67"H
Item Weight: 2.3 Kilograms
Efficiency: high efficiency
Brand: ECO-WORTHY
Material: Monocrystalline Silicon
Product Dimensions: 16.8"L x 13.4"W x 0.67"H
Item Weight: 2.3 Kilograms
Efficiency: high efficiency
Included Components: 1pc 25W mono solar panel, 10A pwm charge controller, 1.54ft cables with alligator clips, 1.38ft O-ring terminal
AC Adapter Current: 1.4 Amps
Maximum Voltage: 18 Volts
Maximum Power: 25 Watts
UPC: 799441541752
Manufacturer: ECO-WORTHY
Part Number: 3B-PSPM-13DC
Item Weight: 5.06 pounds
Item model number: L02M25-1
Is Discontinued By Manufacturer: No
Size: 25 W Kit
Color: Black
Style: New Energy
Power Source: Battery Powered,Corded Electric
Wattage: 20 watts
Item Package Quantity: 1
Batteries Included?: No
Batteries Required?: No
Date First Available: November 10, 2014
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Tuesday, Apr 28
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Similar Products
Top Amazon Reviews
Size: 25 W Kit
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.
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Reviewed in the United States on October 1, 2024 by WorldTraveler WorldTraveler
Size: 25 W Kit
This was added to a electric troll motor battery box. It works wall and keeps the battery charging throughout the day and when not in use. It's not the fastest charge, but over time, it does help keep things going.
Reviewed in the United States on October 28, 2025 by BCS
Size: 25 W Kit
The solar panel and the charge controller itself work great. The wires are junk, wasting 10-20% of the total solar power and causing charging issues. The charge controller is not waterproof or even water resistant, and it takes patience to attach wires to the green connector. Otherwise, the charger works well. Rather than return it, I fixed these problems for about 15 dollars. Actual specs: I measured this unit putting 1.4 amps into my low car battery on a sunny day in December in Maine. That's about 18 watts in the middle of winter, pretty good for a 20 watt panel. That was before I fixed the wiring. The label on the back of the solar panel has slightly different specs than the Amazon title. It says 25 watts max power. See attached photo. Charge controller: The included charge controller works well. It's an intelligent 3A PWM charger that automatically switches through 3 charging phases: bulk, absorption, float (trickle). It has an LED to indicate when it has solar power and what charging phase it's in. It will prevent over discharging below 10.8 volts and over charging above 14.4 volts. At one point I thought my charger was broken and started looking for a replacement. A decent PWM charger like this runs 15-20, so it's a decent value. I later discovered the charger was fine, the problem was the cheap included wires (see below). I was a little worried about the charger consuming battery power when there isn't any sun. Cheaper chargers use a little battery power overnight and on very cloudy days while waiting for the sun to come back. I wanted to leave my system unattended for months during our short and cloudy winter days without discharging my battery, so I can't tolerate much current drain when the sun is gone. Amazon didn't list the current drain when I bought it. I measured the charger's current drain with no sun at about 1mA. That seems pretty reasonable compared to 10-50mA with other chargers. The charger ships with a spec sheet, which lists the current drain as 1.5mA (see attached). The spec sheet says the charger is made for Gel batteries. It seems to work fine on my SUV car battery though. Cheap wires: I measured my battery voltage while charging on a sunny day. 13-14 volts is normal, but I was only getting 12.4 volts. I thought the controller had gone bad so I tried another one. Same problem. I tried lots of things, went over all the connections many many times but nothing worked. It definitely had power coming from the solar panel, it just wasn't getting to the battery. Over a few days I did notice the battery charge increasing very slowly, but the charger kept thinking the battery was fully charged too soon and kept turning off (trickle mode) too early. I finally had the idea to check the battery voltage at the other end of the battery wires (where they connect to the charger). The charger was putting out 13.6 volts at about 1.5 amps, but only 12.4 volts was getting to the battery. That's 10% of the solar power being wasted by wire resistance! It was also enough to fool the charger into thinking the battery was charged and switching to a low power mode, which throws away even more of the generated power. It will still charge your battery eventually assuming you aren't using the battery for something else, but it will be slow. I replaced all the wire with normal 16 gauge wire, and it fixed everything. I measured 13.6 volts at the charger and 13.5 volts at the battery while charging at 1.5 amps. It charges much faster now, and I can use the battery to power other things. I attached a picture of the cheap wires they include and some normal 16AWG wires I replaced them with. On the outside it's deceiving because the cheap wires look reasonably thick. But if you cut into it you'll see the cheap wires are almost all rubber insulation and have very little actual metal inside. Replacement wire: https://www.amazon.com/dp/B00NSGCVWI/ref=cm_sw_r_cp_awdb_feSyyb487STEM Waterproofing: The actual solar panel appears waterproof and has white silicone around the edges on the back. However the charger is definitely NOT waterproof. It came with clear silicone applied along the bottom of the green connector, but that's pointless since the top and sides of the connector have bigger openings and were left unsealed. I needed the charger to work outside in the winter in rain, snow, ice, etc., so any water intrusion could easily freeze and damage things. You could always buy silicone and seal all the openings including the holes in the green connector where the wires attach, but then it will be a pain if you ever want to remove and reattach the wires later. I ended up opening the charger box and spraying conformal coat to waterproof all the electronics. Then I drilled a 1/8" hole in the white box to allow any water that gets in to drain back out. Takes about 10 minutes. So far it's holding up well to our Maine winter environment! Conformal coat: https://www.amazon.com/dp/B00BXSMNWG/ref=cm_sw_r_cp_awdb_AbSyybQ2NH5G4 I didn't see any of this information posted anywhere else, so hopefully some people will find this info helpful!
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Reviewed in the United States on December 27, 2016 by Kindle Customer Kindle Customer
Size: 25 W Kit
Works as it should to open and close my automatic chicken door as long as the sun is shining. If there are days of cloudy skies or rain then I have had issues but that isn’t the units problem it is the nature of solar power.
Reviewed in the United States on January 14, 2026 by Mary B.
Size: 25 W Kit
Bought this on sale for a spare set of 2x20ah Lifepo batteries. Mounted the panel to the roof of my gazebo and made a small battery box with a multi usb/PD and voltmeter to monitor voltage. Powers a 15w 12v outdoor ceiling fan for 10+ hours a day, and can charge a few larger battery banks before dropping below 12v. One day in the sun will bring it back up to 13+. Totally worth the price for entry level solar setups. Edit: This has been working great so far for over a year, although today I found a little bit of a surprise. I finally wired my accessories to be controlled by the solar controller, and found out that the BROWN WIRE IS THE POWER FEED! Opposite of what is found in America, just a warning for those who dont want their solar box to start sparking and look like something out an 80s hair metal music video!
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Reviewed in the United States on July 9, 2024 by John A.