Our 15 Best Picks:
The 15 Best Solar Trickle Charger Reviews:
SaleBestseller No. 1 
10W 12V Solar Battery Charger & Maintainer, Waterproof 10 Watt 12 Volt Solar Trickle Charger, Built-in Intelligent MPPT Charge Controller for Car Automotive Boat Marine RV Trailer Motorcycle
- 【SMART CHARGING】Built-in intelligent MPPT charge controller chip helps to regulate the whole charging, generating at least 10%-20% more power than competitors. Smart 3-stages of charging algorithm is improved to better charge and maintain battery at a stable level for extended battery life.
- 【FULL PROTECTIONS】Prevent the battery from overcharge, over-voltage, discharge, and short circuit, reversed polarity protection, IP65 waterproof and spark-proof, the battery is fully protected. BEWARE OF SIMILAR CHARGERS WERE SIMPLY INTEGRATED A DIODE INSTEAD OF MPPT CHARGE CONTROLLER, IT WILL NOT PREVENT OVER CHARGE, WILL CAUSE IRREPARABLE DAMAGE TO BATTERY.
- 【EASY TO MONITOR】The LED indicator allows to visually monitor the working status and battery conditions. The charging will be cut off when battery is fully charged and resumed automatically when battery is drained, totally free maintenance.
- 【ROBUST & DURABLE】Made of durable and strong ABS frame instead of PVC fabric, which could withstand high temperature and UV irradiation. The tempered glass help solar cells to stand high wind and load pressure, Windproof and rainproof, well built for years. BEWARE OF CHEAPLY MADE ABS AND FABRIC SOLAR CHARGERS WHICH ARE EASILY DISINTEGRATED BY UV AND MAY CATCH FIRE.
- 【WIDE APPLICATION】Safely used as a solar trickle charger and maintainer for different 12V DC batteries including Wet Gel Cell, Deep Cycle,Flooded, Maintenance-free, AGM, Seal Lead Acid and LiFePO4 Lithium Battery. A variety of scenarios for car, boat, RV, trailer, marine, camper, lawnmower, motorcycle, jet ski, water pump, tractors, etc.
SaleBestseller No. 2 
Upgraded 7.5W-Solar-Battery-Trickle-Charger-Maintainer-12V Portable Waterproof Solar Panel Trickle Charging Kit for Car, Automotive, Motorcycle, Boat, Marine, RV,Trailer,Powersports, Snowmobile, etc.
- ✅【Upgraded Intelligent Charger Controller】Built in internal protection system and smart fast charging Cooperate with Quality solar silicon material ensures high conversion and stable output, Generates at least 25%-30%more power than the other brand solar panels, and it even can charge your battery on cloudy days.
- ✅【Comprehensive Battery Protection】 Solar car battery trickle charger fully protects the battery. The built-in blocking diode structure ensures no reverse discharge, overcharge, overvoltage, or short circuit. With LED charging indicators, you could easily tell if the solar battery charger is functioning well.
- ✅【Stronger and More Durable】 The solar car charger adopts high-transparency glass, which is high-strength, impact-resistant, wind-snow-resistant low-iron tempered. And the sturdy ABS frame makes the solar panel more durable than others.Smooth surface, don't worry about scratching the vehicle. This waterproof solar battery charger needs no additional maintenance, extra long service life and durable.
- ✅【Easy to Install and Use】 The outdoor solar battery maintainer is easy to install, and convenient to use, just insert it in the car power outlet, as known as the cigar lighter socket. Or just connect the solar panel to the battery with the alligator clips directly. The perfect charger/maintainer for any car, LiFePO₄, Lithium Ion, motorcycle, boat, tractor, ATV, farm equipment, and 12V batteries.
- ✅【12-Month Warranty】 The quality of your premium solar battery charger is guaranteed by CE/ROHS certifications and comes with a free 12-month warranty+lifetime technical support! If you have any questions, please contact us. Your suggestion helps us improve!
SaleBestseller No. 3 
Waterproof 12W 12V Solar Battery Charger & Maintainer Pro - Built-in Intelligent MPPT Charge Controller - 12 Volt Solar Panel Trickle Charging Kit for Car Automotive Boat Marine Motorcycle RV Trailer
- 🌞【Portable & Charge Anywhere】- Lightweight and portable solar charger. Transfer sunshine into electricity, charge and maintain different 12V batteries such as flooded, gel, AGM, SLA, VRLA, lithium-ion battery of RV, car, boat, marine, automotive, snowmobiles, trailer, camper, etc. in all seasons. US PATENT PENDING!
- 🌞【Intelligent Charge & Maintain】- Fully protect the battery! Built-in intelligent MPPT controller, generates at least 20%-30% more power than the other controller. Smart 3-stages charging algorithm effectively prevents the battery from over-charge, over-voltage, discharge, short circuit, etc.
- 🌞【Upgraded Visual Monitor】- The colorful LED indicator helps to visually monitor the working status of the solar panel and battery. Charging will be cut off when a battery is fully charged and resumed automatically when the battery has a discharge, totally free maintenance. No need to worry battery going flat anymore!
- 🌞【Waterproof & Hign quality Materials】- Use 30% high conversion efficiency crystalline silicon material + high-strength solar energy glass which has 95% strong light transmittance and waterproof performance, can withstand harsh weather conditions.
- 🌞【Free Maintenance】- Tempered glass and strong ABS frame, well built for years. Come with 3-piece SAE cable kits, plug and play, easy to use. No electricity cost, free maintenance for outdoor usage. Backed by extended 12 months warranty + lifetime technical supports.
SaleBestseller No. 4 
Renogy 10W Solar Trickle Charger Portable Battery Maintainer with Lighter Plug/Alligator Clips/Battery Cables for Car Boat Marine Motorcycles Truck
- 【Plug & play, work with diverse applications】This solar trickle charger comes with a quick SAE connection and 3 options for ring terminals, alligator clips, and cigarette lighters, to charge your batteries or automobiles easily, works with boats, SUVs, RVs, electric fences, accessory batteries, and more.
- 【Charge & maintain all kinds of 12 batteries】This solar trickle charger comes with DC adaptors for direct charge 12v batteries, able to work with multiple battery types, such as Gel, AGM, Flooded, and Lithium batteries, etc.
- 【High efficiency, long service life】Renogy panels use high-efficiency monocrystalline solar cells, and multi-layered sheet laminations enhance cell performance and provide a long service life.
- 【Portable design, easy to install】Small in size and light in weight. Suction cups allow the solar trickle charger mounts easily to the windshield or dash.
- 【Weather resistant, wider usage scenarios 】weather proof, and dustproof design, with a wide range of operating temperatures, guarantee efficiency anytime and anywhere, suitable for more equipment and scenarios.
SaleBestseller No. 5 
SOLPERK Solar Panel Kit 20W 12V, Solar Battery Trickle Charger Maintainer + Upgrade Controller + Adjustable Mount Bracket for Boat Car RV Motorcycle Marine Automotive
- 【High Conversion Rate】This 20W solar panel with monocrystalline A+ solar cell has an excellent cell efficiency of 21%-30%. Designed to charge and maintain 12V rechargeable batteries like LiFePO₄, Lithium Ion, AGM, SLA, GEL, EFB, MF, etc. Keep batteries in charged for trailer, tractor, truck, boat, motorcycle, RV, car, lawn mower, water pump, gate opener, electric fence, etc.
- 【Built to Last】 Low-iron tempered glass surface and corrosion-resistant aluminum frame, make this solar panel 100% waterproof and rustproof, and provide the prolonged lifespan up to 25 years. This 12V solar panel can withstand all weather conditions such as sandstorm, strong wind, thunderstorm, blizzard, hail, etc. It can withstand up to 2400Pa wind pressure and 5400Pa snow load.
- 【Smart Charge Controller】The charging efficiency of this upgraded 8A controller is 20%-30% higher than other controllers on the market. Its intelligent three-stage charging design effectively prevents the battery from overcharging, over-voltage and short circuit. It takes no power from the battery. You will clearly know the charging status of the battery through the two indicator lights on the controller.
- 【Easy to Install & Angle Adjustable】- Equipped with a 360 degree angle adjustable mounting bracket. Helps solar panels always have the best angle to face the sun. It’s very easy to install this bracket on the solar panel with pre-drilled mounting holes and needed screws. All cable connections are plug and play.
- 【What You Get】 1 solar panel + 1 charger controller + 1 mounting bracket +1 alligator clips +1 O-rings + 1 set of mounting pieces. We provide one year warranty and lifetime technical support. 7×24 hours After-sales service ensures that your question is answered within one day.
SaleBestseller No. 6 
Sunway Solar Car Battery Trickle Charger & Maintainer 12V Solar Panel Power Battery Charger With Cigarette Lighter Plug Battery Clamp For Car Automotive Motorcycle Boat Marine Snowmobile Watercraft RV
- [Simple and Very Easy to Use]---The solar battery charger panel mounts easily to the windshield or dash and conveniently plugs into your car's 12 volt cigarette lighter! Suction cup available with the solar charger. { If you need a Quick Connection16feet Extension Cable SAE Connectors with Ring Terminal Adapters for this Sunway solar charger, please search the ASIN:B073158Q24.
- [Solar Panel Power up to 1.8W]--This trickle charger will NOT overcharge your battery! Keep your 12 Volt batteries topped up with this solar battery maintainer ,which helps to manage battery drain in all seasons. The amorphous solar panel works well even in cloudy days.
- [Stronger and Durable]-This solar powered battery charger is Covered with ultra clear PV glass which is more efficient, and also with Durable ABS plastic housing which makes this solar panels charger more stronger.
- [For Any Rechargeable 12Volt Battery]--This solar battery trickle charger is the eco-friendly way to maintain the charge of any car, truck, marine , motorcycles , tractors, ATVs, snowmobiles, boat and personal water crafts or RV 12 volt battery!
- [Prevent Reverse Charging]-- With build in blocking diode to prevent reverse charging. And with Blinking LED charge indicator when charging. And the solar charger maintainer Includes cigarette lighter adapter and battery alligator terminal clamps.
SaleBestseller No. 7 
Topsolar 10 Watt 12 Volt Solar Trickle Charger 10W 12V Solar Panel Car Battery Charger Portable Solar Battery Maintainer for Car Motorcycle Boat Marine RV + Cigarette Lighter Plug Alligator Clip
- 【Light, Simple, Durable】 Lightweight and easy to carry. It weighs only 0.75 pounds and measures 7.45 x 13.19 inches. Made of waterproof and durable material, the panel is waterproof all over, designed for long-term use.
- 【Excellent circuit protection】 Excellent safety circuit is built in the junction box, which can not only prevent the battery from overcharging and reverse charging but also protect and prompt the reverse connection of the circuit (when the red light is on).
- 【Plug & Play】 Heavy-duty 2.1mm x 5.5mm DC plug with an extension cord. The accessories are complete, the installation is convenient, and no professional knowledge is required. There is no need for additional maintenance of the kit, no electricity bills, as long as it faces the sun, the charger will generate electricity to trickle charge the battery.
- 【Applicable to all rechargeable 12v batteries】 As a solar battery charger and maintainer, it can safely maintain 12v batteries, such as wet batteries, gel batteries, SLA batteries, EFB batteries, AGM batteries and deep cycle batteries, etc., also suitable for Any car, motorcycle, truck, boat, tractor, RV, snowmobile, truck, etc.
- 【12-months warranty】 The solar panels you buy are of excellent quality, and come with a 12-month free warranty and lifetime technical support. You can contact us for any quality issues within 12 months (Note: Before measure the voltage, you need to activate the product by connecting to the load).
Bestseller No. 8 
ECO-WORTHY 10W Solar Car Battery Charger Maintainer 12V Waterproof Solar Panel Portable Solar Trickle Charger for Car Truck Boat Lawn Mower RV Trailer Tractor ATV Utility Vehicle Battery
- 💦【Function】Suitable for keeping vehicles/boat battery charged during the weeks unused. No need to disconnect the battery or have someone start the vehicle periodically. The indicator light on the back can observe the charging state. And it’s waterproof, you can safely use it outdoors(After experimental test).
- 👷【Protection】The 10w monocrystalline solar panel uses trickle charging to charge the battery without causing overcharging. Built-in blocking diode prevents reverse charging without extra maintenance at night. Works even on cloudy days. As frosted surface, the panel doesn't need film protection anymore.
- 🔎【Version Upgrade】Because of PCB upgrade and the addition function of reverse and overcharge protections, it may not be possible to test the open-circuit voltage. Don't worry, the panel is still working normally.
- 🚗【Easy to Install】Equipped with SAE cable, just plug the cigarette lighter into the port or connect the battery terminal posts with the alligator clip, and the connection can be completed within 3 minutes! Suitable for car, truck, boat, lawn mower, motorcycles, trailer, dump trailer, tractor, RV, van, camper, ATV, utility vehicle Battery etc.
- 💞【Warranty】1 year warranty. If you have any questions, please contact us. Your suggestion helps us improve!
Bestseller No. 9 
OYMSAE 30 Watt 12 Volt Solar Panel Solar Trickle Charger 30W 12V Portable Solar Battery Charger & maintainer with Cigarette Lighter Plug & Alligator Clip
- 🌞[22% High Conversion Rate] Monocrystalline solar battery charger use ETFE , with a light transmittance of up to 95%. The 30W trickle charging mode is an ideal choice for low-cost maintenance of your 12V battery power.
- 🚗[Intelligent Protection] Combined with built-in charging microprocessor technology, it will not overcharge the battery when fully charged during the day, and prevent the battery from reverse discharge at night.
- 🚙[Charging Visualization] The indicator lights are used to help you understand the charging status: the blue light is on (in the sun), the red light is on (charging), the green light is on (charging completed), three indicator lights are off (a short circuit occurs). You can check the connection in time when the solar energy fails.
- ⛴[Plug and Play] The 3-piece SAE cable included with the solar panel kit allows you to have more choices in charging methods. Plug and play, even for inexperienced novices, fast connection can be achieved.
- 😃[Sturdy and Durable] waterproof solar trickle charger, adding CPB as the bottom plate, reducing the risk of reducing the efficiency of the solar panel due to panel breakage. (1 year warranty + friendly customer service, hope to solve your problem in time.)
SaleBestseller No. 10 
20W 12V Solar Battery Charger, Waterproof 20 Watt 12 Volt Solar Panel Trickle Charger & Maintainer, Built-in Intelligent MPPT Charge Controller for Car Boat Marine RV Trailer Automotive
- 【SMART CHARGING】Built-in intelligent MPPT charge controller chip helps to regulate the whole charging, generating at least 10%-20% more power than competitors. Smart 3-stages of charging algorithm is improved to better charge and maintain battery at a stable level for extended battery life.
- 【FULL PROTECTIONS】Prevent the battery from overcharge, over-voltage, discharge, and short circuit, reversed polarity protection, IP65 waterproof and spark-proof, the battery is fully protected. BEWARE OF SIMILAR CHARGERS WERE SIMPLY INTEGRATED A DIODE INSTEAD OF MPPT CHARGE CONTROLLER, IT WILL NOT PREVENT OVER CHARGE, WILL CAUSE IRREPARABLE DAMAGE TO BATTERY.
- 【EASY TO MONITOR】The LED indicator allows to visually monitor the working status and battery conditions. The charging will be cut off when battery is fully charged and resumed automatically when battery is drained, totally free maintenance.
- 【ROBUST & DURABLE】Made of durable and strong ABS frame instead of PVC fabric, which could withstand high temperature and UV irradiation. The tempered glass help solar cells to stand high wind and load pressure, Windproof and rainproof, well built for years. BEWARE OF CHEAPLY MADE ABS AND FABRIC SOLAR CHARGERS WHICH ARE EASILY DISINTEGRATED BY UV AND MAY CATCH FIRE.
- 【WIDE APPLICATION】Safely used as a solar trickle charger and maintainer for different 12V DC batteries including Wet Gel Cell, Deep Cycle,Flooded, Maintenance-free, AGM, Seal Lead Acid and LiFePO4 Lithium Battery. A variety of scenarios for car, boat, RV, trailer, marine, camper, lawnmower, motorcycle, jet ski, water pump, tractors, etc.
Bestseller No. 11 
20W Solar Battery Panel Charger 12 Volt with Magnetic Attachment - Solar Battery Maintainer for Car, Boat, RV - Solar Trickle Charger with 3-Color LED Indicator, Higher Conversion Rate
- ✅ 【Convenient and Efficient】: The magnetic attachment of these solar battery charger accessories allows for easy and secure installation on metal surfaces, maximizing sunlight absorption for improved performance.
- ✅【3-color LED Indicator】 The LED indicator provides real-time feedback on the operational status. Blue light indicates sunlight availability, green light indicates charging in progress, and red light indicates full battery charge. Stay informed with this convenient and intuitive 3-color LED indicator!
- ✅ 【Higher Conversion Rate】: Built-in charging microprocessor and improved algorithm for at least 20% increased charging efficiency. Ideal for cloudy or short daylight areas, ensuring optimal energy conversion for device charging.
- ✅【Smart Maintenance】This 12V solar battery charger ensures safe charging with its reverse charge blocking diode and overcharge/over-discharge protection. Keep your battery and yourself protected with this intelligent maintenance feature.
- ✅【Wide Compatibility】Compatible with various 12V DC batteries (Gel, MF, Wet, EFB, AGM), perfect for RVs, boats, cars, marine vessels, campers, lawnmowers, motorcycles, and more. Charge with ease in multiple scenarios.
Bestseller No. 12 
12V Solar Car Battery Trickle Charger & Maintainer 10W Waterproof Solar Panel with Cigarette Lighter & Alligator Clips for Car, RV, Boat, Motor, Lawn Mower
- [Intelligent circuit protection]：Built in smart module to prevent batteries from overcharging and discharging backwards when the solar panel is not working. Leaving the solar trickle charger 7/24h, maintaining the battery and keeping it in safe.
- [Charging status indication]: An indicator light on the junction box helps you better monitor the charging status: green light on(charging), light flash(full charge), light off(no input).
- [Durable Frosted Glass Surface]: Frosted glass can reduce sun reflection, increase panel energy absorption efficient. Also with splash-proof function, extend the service life.
- [Wide Application]：Lightweight and portable. Compatible with 12V battery of car / boat / motor / mower / truck / marine etc.
- [Plug and Play]: Easy connection with SAE connectors. 2 charging ways with cigarette lighter or alligator clips, satisfy your various wiring demand.
SaleBestseller No. 13 
20W 12V Solar Panel Kit Battery Maintainer Trickle Charger Pro + Advanced 10A MPPT Charge Controller + SAE Battery Clip Cable for 12 Volt Boat Car RV Trailer Motorcycle Automotive Home Off Grid System
- ☀️【 CHARGE ANYWHERE 】Convert sunshine into electricity, charge and maintain your 12 volt battery in all seasons. Package includes a 20 watt 12 volt solar panel, an advanced MPPT charge controller to intelligently charge and maintain 12 volt batteries plus a plug and play SAE connection cable for quick connection or disconnection.
- ☀️【 MULTIPLE COMPATIBILITY 】Perfect portable 12v solar charger for trickle-charging and maintaining various 12 volt batteries like deep-cycle Wet, Gel, Flooded, AGM, Sealed, Lead-acid, Lithium Lifepo4, as well as batteries for cars, motorcycles, RVs, trailers, boats, snow mobiles, lawn mower, tractors, ATVs, gate openers, trolling motors, water pumps etc; Works great for off-grid 12 volt battery charging systems and a variety of DC applications, back-up power and remote power uses.
- ☀️【 INTELLIGENT CHARGING & FULL PROTECTION 】An advanced MPPT charge controller is included to optimize the performance of charging 12v batteries like AGM,Lithium Lifepo4,Wet,Gel,Flooded,Sealed,Lead-acid batteries of Cars,ATVs,Tractors,Boats,RVs,Campers,Trailers. And also provide full protection against over-charging, short-circuit&reverse polarity to ensure the battery is efficiently and safely charged to 100%. LCD display allows you to monitor the working status of solar panel and battery.
- ☀️【 HIGH EFFICIENCY 】Made of premium Monocrystalline cells which delivers an effective conversion rate up to 30%. Using low iron tempered, The Monocrystalline cells are protected by low-ion tempered glass, EVA film and durable aluminum frame.the solar panel which can withstand the changing outdoor environment, Great for extended outdoor use.
- ☀️【 EASY INSTALLATION 】Equipped with a alligator battery clip cable with SAE connector, plug and play, easy to connect or disconnect. SAE connector allows it to works with the most other SAE adapters on the market. Pre-drilled holes on the back of 20w 12v solar panels which can be matched with various solar panel mounting brackets allows faster mounting and securing.
SaleBestseller No. 14 
FellDen 12 Volt 6 Watt Solar Trickle Charger for 12V Batteries, Portable Power Solar Panel Battery Charger Maintainer with Lighter Plug/Alligator Clips/Battery Cables
- [ Plug & play, work with diverse applications ] This solar trickle charger comes with a USB & Type-C connection and DC adaptors (alligator clips and cigarette lighters), to charge your batteries or automobiles easily.
- [ High efficiency light sensitive ] This panels use high-efficiency monocrystalline solar cells, and multi-layered sheet laminations enhance cell performance and provide a long service life.
- [ Weather resistant, wider usage scenarios ] weather proof, and dustproof design, with a wide range of operating temperatures, guarantee efficiency anytime and anywhere, suitable for more equipment and scenarios.
- [ Portable Design ] Small size and light weight make it easy to store. Perfect for hiking, biking or camping outdoors.
- [ Wide Use ] - Perfect trickle charger/maintainer for 12V batteries of cars, motorcycles, boats, snowmobiles, tractors etc. Provides nonstop power with a few hours of sunlight every day.
SaleBestseller No. 15 
SUNAPEX 12V Solar trickle Charger,Battery Charger,Battery maintainer Portable Power Solar Panel Suitable for Car, Motorcycle, Boat, ATV,Marine, RV, Trailer, Snowmobile, etc.
- ✅【High Conversion Rate】SUNAPEX 1.8W solar battery charger uses advanced amorphous film technology to generate more power.30% ultra-high conversion rate,ensure high conversion rates and stable output.The solar battery charger has an LED indicator for showing the working status.
- ✅【Upgraded Built-in Intelligent Controller】With upgraded Intelligent Charger Controller,1.8W solar trickle charger protects your battery from reverse discharge, overcharge, over-voltage, or short circuit. Ensure your equipment and personal safety.
- ✅【Stronger and Durable】1.8W solar trickle charger is covered with ultra clear PV glass which has strong light transmission and can resist hail, rain and snow.Durable engineering ABS plastic housing,more stronger and weatherproof,which ensures reliable charging performance in all seasons.
- ✅【Battery Charger & Maintainer】This product is a solar battery maintainer and tickle charger, which can charge all kinds of 12V batteries including LiFePO4, Lithium Ion, and lead-acid batteries. It's perfect solar charger for cars, motorcycles, boats, RVs, and other ATV vehicles.
- ✅【Easy to Use & Warranty】All interfaces of the product are plug-and-play, mounts easily to the windshield or dash,maintain your battery all the time.SUNAPEX provides 12-month warranty and lifetime technical support.Contact us with any questions.
Last update on 2023-06-11 / Affiliate links / Images from Amazon Product Advertising API