Our Top Picks

Unfortunately for many, emergency strikes when you least expect it. In many cases, when you can least handle it. Being out shopping when your car battery decides to die can be a massive headache. Being out camping in the middle of the woods with your RV, refusing to turn on can be an emergency. No matter which spot you find yourself in, having a portable, dependable way of jumping your battery can save the day.

With this solution comes another problem – where are you getting the power from? Many portable battery chargers require AC or DC power to run, which essentially makes them useless if you don’t have a power source. With solar battery maintainers and chargers, your car battery has never been in safer hands. These fantastic solar devices utilize the power of the sun to properly charge or maintain the levels of charge in your car battery.

Our 10 Favorite Solar Battery Maintainers of 2020

We decided to look at the most popular brands and solar battery chargers available to compile a list of our favorite ten (10) devices in 2020. Each device on our list has been tested rigorously to ensure quality and compare what is stated on official websites with what is actually being presented to consumers. Here are the ten (10) best solar battery chargers of 2020.

ECO-Worthy 12 Volt Solar Battery Maintainer

ECO-Worthy 12 Volt Solar Battery Maintainer
If you have a vehicle of any sort that needs an emergency charge, look no further than the ECO-Worthy Solar Maintainer. This 5-watt solar panel is easy to use and can charge your battery up whenever an emergency arises. It’s eco-friendly with its low emotion and reverse-polarity protection, which helps prevent battery drainage. The issue with many solar charger devices is that the power collected can quickly drain after a full charge. The ECO-Worthy does well to avoid this drainage.

Our favorite feature of this product was how great it is for any weather conditions. It’s both waterproof and durable so that you don’t have to worry about the amorphous solar panel cracking or shorting out. It’s effortless to use as it can be plugged into the car’s cigarette lighter plug for ample charging. This ensures that it’s fully charged and ready to go in an emergency. This is one of the best solar battery devices you’re likely to come across.

Our Verdict

Because of the multiple battery types in this device, the lifespan is much longer than the industry average. Most solar battery charger devices will die out after too much use and become ineffective. With the ECO-Worthy, you won’t have to worry about buying a new one for a long time. We loved how great it is for outdoor use and how resistant to most weather conditions it is. You can use it to charge up your vehicle – car, boat, truck, RV, etc. – without having to worry about rain or snow damage.

Pros

  • Different battery types extend the lifespan.
  • Easy to install and easy to use
  • Durable and water-resistant
  • Prevents power drainage

Cons

  • Suction cups come loose quickly when charging.
Check the price on Amazon

SUNER POWER 12V Solar Car Battery Charger

SUNER POWER 12V Solar Car Battery Charger
Much like the ECO-Worthy, the SUNER POWER Battery Trickle Charger includes roadblocks to prevent any excess power drainage. It comes with a built-in blocking diode to prevent any power drainage or reverse charging. SUNER POWER has done a fantastic job protecting the solar panels. It is made of premium solar glass and includes a durable ABS plastic frame making this battery charger and maintainer quite sturdy.

It can either be charged through the cigarette lighter plug or via the alligator clips included in the kit. The only issue we had with this device was that the alligator clips can be a little too loose and might need replacing. Other than that, this 12-volt charger and maintainer is a fantastic product. Almost any battery is covered with this solar car battery as it can jump Wet, Gel, SLA, AGM, and Deep Cycle batteries. No matter what situation you find yourself in, this 5-watt solar battery has you covered.

Our Verdict

This all-in-one frame is a perfect solar charger. The solar panel is well protected, the device itself is easy to use, and the built-in diode prevents reverse polarity and enables super-smart charging. This solar-powered battery caught our attention with the dual charging capabilities and kept us interested because of the protected solar panels and durable ABS plastic. If you’re looking for a robust solar battery charger that can get you through any emergency, then the SUNER POWER is the perfect battery charger and maintainer for you.

Pros

  • Built-in blocking diode prevents drainage and reverses charging.
  • Durable ABS plastic helps protect the solar panel.
  • Charges with both the cigarette lighter and alligator clips

Cons

  • Alligator clips can be loose.
Check the price on Amazon

Battery Tender 12V Solar Battery Charger

Battery Tender 12V Solar Battery Charger
Safety is the name of the game for the Battery Tender Solar Battery Charger. It includes reverse polarity protection, a spark-proof and waterproof design, a 3-step microcontroller to prevent overcharging, and a temperature compensator to prevent overheating. This amorphous solar battery trickle charger is one of the best solar-powered battery charges we’ve ever seen. It’s lightweight yet perfect in almost any situation. You won’t have to worry about any weather conditions with this 5w solar charger.

When we first encountered this product, we were shocked by the unique design of the solar panel. This eco-friendly charger maintainer looks more like a mat than a 12-volt trickle charger. However, once you plug it into your cigarette lighter plug, this thing is ready to go and will thoroughly protect your car. The Battery Tender solar charger senses when your car battery is fully charged and can cut itself off with the internal charge controller, something very unique and useful that this product has.

Our Verdict

Most other solar charger products offer charge protection, but very few battery chargers can sense when a car battery is at peak power and cut themselves off. That’s what we love about this trickle charger is that it might be the smartest battery on our list. Not to mention the extreme protection you get from this smart device. Waterproof, shockproof, internal overheating prevention, overcharge protection, you name it. The Battery Tender solar battery charger protects you, itself, and your vehicle.

Pros

  • Extreme protection from misuse
  • Easy to install and use
  • Senses when your battery is fully charged and cuts off
  • The built-in diode prevents reverse polarity.

Cons

  • Customer service seemed to be negatively reviewed quite often.
Check the price on Amazon

Sunway Solar Car Battery Charger

Sunway Solar Car Battery Charger
The Sunway Solar Battery Maintainer includes all of the necessities we’ve seen with the SUNER POWER, the ECO-Worthy, and the Battery Tender. You have a built-in blocking diode to prevent drainage and reverse charging. There’s a fully stocked package with suction cups, your cigarette lighter plug, and even some alligator clamps for a direct charge. What makes this battery trickle charger so appealing to us is this combination of all the above devices’ best features.

Sunway does a fantastic job creating one of the most durable and dependable solar battery chargers that include all of the industry’s best features. The solar panel is protected by an ABS plastic frame and the ultra-clear PV glass encasement. It charges your car battery either through solar power or by taking from the less necessary systems found in the car. It’s straightforward to install and use and offer you one of the best charges a solar car battery maintainer can do.

Our Verdict

If you’re looking for the best solar battery charger, chances are you just found it. From the most important features like the charge controller or the built-in drainage prevention to the aesthetic additions such as the LED battery level indicator, this solar battery maintainer has it all. The only issue with this device is having a 4-watt solar battery only while the others on our list are in 5-watt. What you’re losing in wattage, you’re gaining in all other aspects with the Sunway solar maintainer.

Pros

  • Durable construction and ABS plastic frame
  • Energy-efficient solar powered product
  • Includes suction cups, alligator clamps, and a cigarette lighter plug
  • Prevents reverse charging

Cons

  • Only 4-watts
  • Not as water-resistant as other devices
Check the price on Amazon

POWISER Solar Battery Charger

POWISER Solar Battery Charger
The POWISER Solar Battery Charger essentially takes care of itself as it requires low maintenance and is easy to operate. All you have to do is let it charge with solar power or plug it into the cigarette slot, and you can maintain or charge your car battery. This car battery tender can work on almost any 12-volt battery and offers a full charge or a maintained battery in no time at all. The solar panel is covered by tempered glass, which can withstand high impact force if needed.

What stands out for us is the all-weather charging this battery charger offers. Most other solar battery maintainers are subject to whatever weather is currently going on. The POWISER, on the other hand, offers a charge no matter what. So, if the situation arises that your battery charger was not charging in the direct sunlight and you can’t get your car started on a rainy day, you won’t need to worry. The POWISER solar battery maintainer will work for you no matter what.

Our Verdict

We’ll start our verdict by addressing the elephant in the room on this device: many customers can’t decide whether this is a charger or a maintainer. Our tests showed that it could charge your battery, but it won’t ever get to a full charge and will eventually maintain the level you’re at. For us, this is a charger and maintainer, and it works well with both. We highly recommend this solar car battery charger as it does work, no matter the weather.

Pros

  • Works on almost any 12 Volt battery
  • Solar panels are thoroughly protected.
  • Works no matter the weather
  • Extremely easy to use

Cons

  • Suction cups can come loose.
  • Some consumers can’t tell if it’s a charger or maintainer.
Check the price on Amazon

Schumacher SP-200 12V Solar Battery Maintainer

Schumacher SP-200 12V Solar Battery Maintainer
Small and ready at a moment’s notice, the Schumacher Solar Battery Maintainer is the perfect glove compartment solar battery tender. If you’re looking for a small, portable solar car battery maintainer, then this is the ideal device for you. While it might be the lowest wattage on our list, it’s designed to be compact and ready to handle any 12V battery in an emergency. For anyone tight on space but in need of a quick charge, this is the best solar battery maintainer you can find.

It’s completely reliant on solar power and works well in direct sunlight. This could be an issue should your battery ever need charging in a garage or covered area, but it makes it one of the most eco-friendly devices on our list. Clouds won’t be an issue with this battery tender as it can still charge, even when the sun is partially obstructed. The solar panel might be small, but it can pack a punch and handle any 12v input or output. It might take a bit longer to charge your car battery, but you’re gaining a sense of portability with this product. For its small size, it’s surprisingly durable and water-resistant.

Our Verdict

Small but mighty is the tag line we can think of that describes this solar battery maintainer best. It might not have the largest solar panel, but it can charge your car battery just as well as some of the larger competitors. This charger maintainer is perfect for anyone tight on space but still with a battery on edge. Many solar battery chargers rely on the size to provide the perfect kick, but this one’s most interesting feature is how compact it is. Water-resistant and durable, this is one of the best solar battery maintainers for small spaces.

Pros

  • Compact and easy to transport
  • Eco-friendly solar panels
  • Works on cloudy days

Cons

  • Completely reliant on solar power
  • Only 2.4-watts leads to a slow charge.
Check the price on Amazon

POWOXI 12V Solar Car Battery Charger Maintainer

POWOXI 12V Solar Car Battery Charger Maintainer
When we started searching for the ten (10) best solar battery maintainers, we wanted to find a device that enabled users to forget about it whenever the car battery was okay. The POWOXI Solar Car Battery Charger Maintainer achieves that goal perfectly with its long life, maintenance-free design, and durable casing. You’ll never have to worry about taking care of this product or keeping it protected as it handles all of that on its own. The ABS plastic casing protects the solar panel, and the long-life guarantee keeps you from having to keep constant care of the device.

Should an emergency ever arise and you need to charge your car battery on a cloudy day,, many solar battery maintainer products would fail. However, this amorphous solar battery tender will charge you up no matter the weather. When we opened the package, we found a fantastic all-in-one deal with the suction cups, cigarette lighter plug, and alligator clips. No matter the situation, this solar maintainer has your back and will keep your car running long enough to get to a repair shop.

Our Verdict

Hands-off leads us to fall in love with this product and will guarantee your satisfaction. Many solar battery chargers require maintenance or constant charging to keep them prepared for an emergency. The POWOXI, much like the Battery Tender or the ECO-Worthy, includes drainage prevention so that any power stored will stay until you use it on your car battery for power. Solar maintainers have never been so useful.

Pros

  • It works just as well on a cloudy day.
  • It doesn’t require any maintenance.
  • Prevents power drainage
  • The perfect hands-off amorphous solar maintainer

Cons

  • Some devices have come compromised and needed to be replaced.
Check the price on Amazon

SOLPERK Solar Trickle Charger

SOLPERK Solar Trickle Charger
The real perk of SOLPERK Battery Tender is how amorphous and productive it can be, even in the worst weather conditions. You’re not always going to get lucky with a dead car battery and have the weather be bright and sunny. You’re just as likely to get a cloudy or even a rainy day. Most solar car battery chargers rely on the cigarette plug to draw power from the car and maintain a base level of power if that’s the case. With the SOLPERK, you’re able to charge just as well in the rain as you are in the sun.

Should the need arise, this solar panel battery tender does include suction cups, a cigarette plug, and alligator clamps for many different charging options. Still, you’ll never be forced into one charging situation. Besides the extreme weather resistance, our favorite feature of this 5w solar charger maintainer is its versatility. It can be use to charge any 12-volt battery on almost any type of vehicle. Bring this device off-road with you and charge upon the trail or pull over your RV on the highway and bring it back to life while you travel.

Our Verdict

Even in adverse weather conditions, you’ll find yourself and your vehicle properly protected with this solar panel charger. Where many maintainers fail, this solar car battery charger picks up the slack. Don’t worry about the weather one bit with this amazing product. Should disaster strike and your SOLPERK solar panel breaks and needs replacement, you can utilize the 1-year warranty and lifetime customer service/technical support that comes with this charge controller.

Pros

  • Works in the sun, clouds, rain, etc.
  • Built-in blocking diode
  • 1-year warranty
  • Includes suction cups, alligator clamps, and a cigarette plug

Cons

  • Can’t be submerged in water
Check the price on Amazon

SUNER POWER Waterproof Solar Trickle Charger

SUNER POWER Waterproof Trickle Charger
This is a very different battery maintainer than the rest of our list, but we wanted to include it because of the incredible additional features it offers. This is not a charger that can easily come with you in your car as it’s designed to be mounted on a wall and placed in an affixed location. Where most maintainers would use suction cups, the SUNER POWER Waterproof Solar Trickle Charger comes with screws and an adjustable mounting base. It’s perfect for charging any battery within its reach.

However, it can only charge batteries within its reach, so if your car breaks down on a trail or highway, this device won’t be with you. With the 3-stage charging system, this device will fully charge any 12V battery during any season or condition. Simply mount it to a sunny wall and bring the dying battery close to it for an optimal charge. The massive solar panel can collect plenty of power for a full, quick charge of your battery.

Our Verdict

While we might not recommend this for anyone looking to bring the battery charger along with them, we can say that this is one of the best mountable solar panel charging stations. If you’re ever in need of something you can mount to your home that will utilize the power of the sun to charge any 12V battery, this should be the first thing you look for. Because of its fixed design can be used for much more than car batteries should you need.

Pros

  • One of the best waterproof products on our list
  • The LED indicator tells you how charging is going.
  • Durable design offers ample protection.

Cons

  • The fixed design prevents mobility.
Check the price on Amazon

Renogy Portable Solar Panel Battery

Renogy Portable Solar Panel Battery
Much like the POWOXI, the fantastic hands-off Renogy Portable Solar Panel Battery is easy to install and requires little to no maintenance. Many other battery charging solar panels need inspections to make sure everything is working properly, but this device almost guarantees to last you for years at a time. With the built-in safety features this device offers, you’ll never run the risk of overcharging. Keep the solar battery charger plugged in 24/7 with the Renogy.

Renogy is another solar device that does a fantastic job at charging in all conditions. You won’t need to rely solely on the sun for power. Solar battery products like the Renogy are rare to find as most similar devices require direct sunlight for even a minimal charge. Another feature that caught our eye with this solar battery tender was the compact size. A solar product of this size wouldn’t typically be as durable or offer the battery charge the Renogy can give you, but, much like the Schumacher, this compact solar panel is perfect for any emergency.

Our Verdict

Harnes the solar power around you with this compact battery charger. This is one of the safest products on our list due to the many internal safety features it offers. You’ll never run the risk of drainage, shocks, or back charging. You can leave the Renogy plugged into the car cigarette port for days on end without fear of overcharging. This product combines the Schumacher’s compact size with the ability to charge no matter the cloud coverage.

Pros

  • Built-in safety features
  • Durable and compact
  • Can remain in cigarette port 24/7
  • Works in any weather

Cons

  • Mounting the device can be difficult.
Check the price on Amazon

Runner Up Solar Battery Maintainer

Battery Tender 12V Solar Battery Charger!

There are few battery chargers available that are as safe as this one. You’re getting to the cream of the crop in terms of pure safety with the 3-step microcontroller, which helps prevent overcharging. With the guarantee of this device being waterproof, shockproof, having internal overheating prevention, and overcharge protection, this is easily one of the safest chargers of any kind we’ve ever seen. Add on the solar aspect, and you’re looking at complete protection of you, your car, the maintainer, and the environment.

We could not recommend this device enough, and that’s why this is our runner up. If it were a little bit smaller, then this would be the perfect solar battery maintainer. Due to its size, it can be difficult to store this solar device in the car whenever you need it to charge your battery. The safety features available from this device really tipped us over the edge in choosing our favorites.

Overall Best Solar Battery Maintainer

Sunway Solar Car Battery Charger!

This battery charger has everything you could need and more. There isn’t really a unique feature being offered that makes this device the most recognizable one on our list, but it does everything so well that we couldn’t pass it up as our favorite. It emphasizes ensuring that you’re getting the best solar battery maintainer available rather than offering flashy additions. All of the best features of our favorite maintainers can be found in this neat package.
This maintainer covers every situation you could run into, from the suction cups to the alligator clamps and cigarette plug. The blocking diode prevents drainage, there’s no fear of overcharging or shocks, and you can charge in almost any weather. This certainly is the greatest device on our list, and we recommend it to anyone who asks. Sunway knows what they’re doing, and this charger is sure to satisfy anyone in the market.

A Quick Buyer’s Guide For Finding the Best Solar Battery Maintainer

Don’t go in blind when choosing the right solar battery maintainer for your car. Know what to look for and what makes a great charging device. Here are some of the most important features of a solar maintainer and what factors we tested each of the devices on our list.

What Features Make a Solar Battery Tender Great

There are many exciting reasons to get a solar battery tender. However, some key features make these chargers stand out above the rest. Whether it’s safety features, weatherproofing, or add-ons, the solar maintainer has a clear advantage over the rest of the crowd. These are three of the most important features found in a solar maintainer.

How Safe is it?

This is often overlooked when selecting a battery maintainer. Many devices offer a fast charge for a moment’s fix, but this can leave you at risk of an overcharge or even shocks. Protection, in the case of car battery maintainers, must cover a multitude of bases. You’ll want a device that protects you, your car battery, and even itself. If any of these aren’t guaranteed safety by the device, then do not purchase that product. There are hundreds of solar maintainers available that do promise protection.

Waterproofing

Batteries never die during an ideal situation. If you’re out getting food with a friend who has a car during a sunny day when your battery dies, then you’re a lucky one. More often than not, luck is not on our side, and you’ll need a device that can weather the elements. Don’t be afraid to charge your battery when it’s raining out because your solar charger isn’t waterproof. This is one of the most important features to look for in a solar maintainer.

Extra Features

This isn’t a necessity, but it sure is nice. With solar chargers specifically, having extra features can go a long way. Many devices will include LED lights that indicate the charge level. This might not improve the product’s overall charge, but it’s nice to know when your maintainer wasn’t charged for a situation. If you have multiple gathering power methods – solar, AC, DC, etc. – then an extra feature like the LED indicator will allow you to alter how you’re going to maintain your battery.

What Criteria We Had When Testing the Solar Battery Maintainers

When we selected our list of 10, it was important to us that we could guarantee the words we were saying were true, so we tested each of the products. These were the features that we tested for and what we believe to be some of the most important factors that go into a quality solar maintainer. On top of the features that make a solar maintainer great, these factors should be considered when purchasing one for yourself.

Durability

When you’re working outside, many different factors come into play. Unfortunately, many of these factors can cause harm to your maintainer, so it’s necessary to ensure that your charger is durable and ready for anything. Many of the devices on our list come with an ABS plastic casing, which helps protect the solar panels and the device’s internal structure.

Our tests were done to ensure that each maintainer’s structure wasn’t easily compromised to guarantee longevity. If a product couldn’t withstand a few knocks and bruises, then it wasn’t included on our list. Durability is important for a solar charger as you’re not always charging in a comfortable situation.

Ease of Use

The stress of a dead battery is already on you, so why make it harder on yourself with a complicated maintainer? Many industry giants offer these fantastic chargers that will get your car started in seconds flat, but only if you can figure the device out. Each of the products on our list is simple to use and easy to install. If you have any questions on how it functions, most of them come with competent customer service centers to help you when you’re stuck.

Temperature Ranges

Any device that gathers its charge from the sun should be able to withstand the heat. Otherwise, you’re looking at a pretty useless and short-live product. Finding the perfect device is all about picking one that can hold its own in some pretty hot situations. A quality charger will last out in the direct sun on a hot day in the equator without issue.

The same should be true for a much colder climate. Not everyone is in the heat of the sun all the time, nor are they always in a moderate climate with seasonal changes. A quality charger should work in both extreme heat and extreme cold without the slightest compromise apparent.

How Easily it Charges

We wanted to guarantee that each device we offered on our list provided a quick and dependable charge for your battery. Many similar products will take a while to bring your battery back to life, so we wanted to ensure that no such product was on our list. It’s important to get your battery up and to run in as little time as possible, so the solar charger you purchase should be well suited for a quick jump.

Why Get a Solar Battery Maintainer?

There are certainly some pros and cons to having a solar battery maintainer. However, do the pros outweigh the cons? Or would it be easier to stick with the traditional method of charging your battery? Here are the pros and cons – starting with the negatives – of switching to solar-powered products.

Cons

These things take a lot of time to charge fully. Many similar products are ready to go in a matter of minutes, but they could take up to hours for a full charge because they use the sun. This means that, if you weren’t charging your maintainer, you could be stuck without a way to charge your battery should the situation ever arise.

These chargers can also be quite difficult to charge should you ever run into a cloudy day. Many devices require direct sunlight for a proper charge and, even for products that work on cloudy days, it could take much longer to bring your battery back to life.

Pros

These products can be used almost anywhere. They are a fantastic way of bringing safety to your battery no matter where you go. Traditional chargers require a power source to bring charge to your battery, but these solar products can source power at almost any moment.

They are extremely eco-friendly and offer an alternative method of charging your car in an emergency. While cloud cover could obstruct a quality charge, many devices have begun to ensure that the solar panels will still be effective, even on a rainy day. They might not be as quick to charge as your traditional charger, but the knowledge that this product will be effective, no matter where you get stuck, is more than enough reassurance for consumers.

Frequently Asked Questions

Here are a few answers to the webs most popular questions regarding solar battery maintainers.

Does a Solar Battery Maintainer Work?

In many cases, a solar battery maintainer will work better than a regular battery jumper. By using the power of the sun, these devices offer an external way to charge your car without needing access to an outlet or generator. Most other battery maintainers require access to power from the car, which can leave your battery hovering above death until you can replace it. With a solar maintainer, that power is endless, and your car won’t need to create a circuit of energy, relying on itself for power.

How to Use a Solar Battery Charger?

This will vary from device to device, but the most basic way to use it is as follows. When you’re not using it to provide power to your battery, you leave the solar panel affixed to a window – front, rear, or side – where it can gather power from sunlight. Once your battery dies, you can either attach it directly to the battery or plug it into a cigarette lighter. Either way, the stored energy will be used to jump the battery and either charge it or maintain the power level.

How Should I Clean My Solar Battery Maintainer?

Luckily, you won’t need to do much with most solar maintainers, if any, maintenance. They are rather independent tools that won’t require much from you. As long as you charge it when you’re not using it, unplug it when it’s at a full charge if it can’t protect itself from overcharges, and ensure that the solar panel isn’t obstructed, your maintainer should be ready to go. Wipe it off if any water gets on it, but the maintainer requires little maintenance for the most part.

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