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Best Solar Battery Charger for Dump Trailer: Top 5 in 2024

Last Updated on September 25, 2023

Your dump trailer’s battery needs to remain charged at all times when you are on the road. As an eco-friendly option, it would be prudent to go for the best solar battery charger for dump trailers. You will be able to prolong the life of your battery while reducing your environmental impact.

There is no need to be tethered to a power source since the panel utilizes solar light energy for battery charging. This means that you can keep your dump trailer’s battery topped up, no matter where you are. 

You need to be particularly vigilant because a substandard charger may not be able to charge the batteries fully. Check out our list of the top solar battery chargers and find the one that is most suitable for your purposes.

Eco-Worthy 12 Volts 5 Watts Portable Power Solar Panel Battery Charger

Wattage: 5
Reverse Charging Protection: Yes
Weight: 0.76 Pounds
Light Indicator: Yes

Sunway Solar Portable Solar Powered Battery Trickle Charger

Wattage: 4
Reverse Charging Protection: Yes
Weight: ‎1.41 pounds
Light Indicator: Yes

Suner Power 12V Waterproof Solar Battery Trickle Charger & Maintainer

Wattage: 12
Reverse Charging Protection: Yes
Weight: 3.27 pounds
Light Indicator: Yes

5 Best Solar Battery Charger for Dump Trailer Review

It’s not all the same as solar battery chargers. If you’re looking for a solar battery charger to charge the battery of your dump trailer, do your research to find the best one for your needs.

Checking out reviews can be a helpful way to narrow down your options and find a charger that will work well for you. Reviews can give you insights into the features and performance of different chargers, as well as any potential drawbacks.

Reading reviews can help you save time and money by avoiding products that don’t meet your expectations. If you’re looking for the most reliable solar charger for your dump trailer, be sure to check out reviews before making your final decision.

Listed below are five of the highest-rated solar chargers for dump trailers battery, along with some of their key features and cons.

1. Eco-Worthy 12 Volts 5 Watts Portable Power Solar Panel Battery Charger

When a solar battery charger is installed outside a dump trailer, car, RV, or boat, it is constantly exposed to the elements and needs to be weather resistant in order to function properly.

Eco-Worthy’s 12-volt, 5-watt charger is optimal for these conditions, as it is designed to operate in all weather conditions.

Highlighted Features:

  • Reverse diode for the prevention of reverse current
  • 4 suction cups that secure it in place
  • Comes with a pouch for protection and easy transport
  • LED light is included in the charger for easy charge monitoring
  • Comes with all necessary adapters and cables
  • Can be installed on any smooth surface
  • Weather-resistant that can be used in all types of weather
  • Blocking diode included for preventing battery drainage
  • Reverse diode to block the flow of reverse current

Anti-Reverse Current Flow:

An anti-battery drain diode is included in this product in order to prevent the battery from being drained. This implies that the solar panel can be connected to the battery indefinitely without causing any degradation. Also, this product uses a reverse diode to prevent reverse current flow, ensuring that it will not waste any energy.

Ample Output:

This charger is well suited for mid-sized dump trailers that get moderate use. With good wattages and amperages available, this charger is most suitable for charging batteries efficiently.

Protective Pouch:

It comes with a pouch that protects the panel from the elements and makes transporting it easier. The panels will be less likely to be broken, and tracking it will also be easier.

Easy Holding Suction Cups:

There are four suction cups to secure it in place, which allows it to adhere to any smooth surface. This will be helpful if the user needs to move it around frequently.

Good Connecting Adapters:

You get adapters for both direct battery connection and power plug outlet with this charger. It’s compatible with a bunch of devices.

Equipped with Cigarette Plug:

Using this charger is easy, and it comes with a handy cigarette plug that connects directly to the cigarette lighter port of your vehicle.

Easy to See LED light:

An LED light is also included in the ECO-WORTHY 12 volts 5 watts portable power solar panel battery charger, so it is easy to determine the condition of the battery’s charge. The light is also helpful in dim or dark conditions.


  • The charger does not include a USB adapter, so it cannot be directly used to charge smartphones or other devices.
  • The cord attached to the charger is somewhat short.
    • It can be easily extended with a little soldering.


Overall, considering the good output, and all the included features, you may wish to consider purchasing the Eco-Worthy 12 volts weatherproof solar battery charger.

2. Sunway Solar Portable Solar Powered Battery Trickle Charger

The Sunway solar trickle charger is a convenient way to keep your dump trailer’s battery charged without worry. This solar charger will not overcharge the battery which is a safety feature.

Highlighted Features:

  • LED indicator shows when the charger is working
  • Portable and compact design for easy carrying
  • The build-in diode prevents overcharging and adverse reactions
  • A diode integrated within the battery prevents reversible charging
  • Charges batteries in sunny, partly sunny, and even cloudy conditions
  • Long cables allow you to connect difficult-to-reach batteries
  • Low maintenance for easy upkeep
  • Ultra-clear PV glass for high efficiency
  • Can charge most types of batteries

Built-in Diode:

An integrated diode prevents the reverse charging of batteries, thereby reducing the risk of adverse reactions to battery cells. It is also highly efficient and can charge car batteries quickly.

LED Charge Indicator:

There is an LED indicator on this charger that indicates when it is charging. Using this method, you can determine if the PV module has direct sunlight and is receiving a charge.

Withstand All Weather Conditions:

It is designed to charge batteries in bright and partly sunny weather as well as in cloudy weather. You can safely use your trailer and keep it operating smoothly, knowing the batteries will have power when needed.

Long Cables:

The long cables on this charger enable you to reach your battery even if it is located in a difficult to reach area.

Easy Mount:

It mounts easily to the windshield or dashboard of your car and connects to the 12-volt cigarette lighter outlet. Using suction cups, it is easy to mount.

With a 12 GA wire and an on/off switch, you can permanently connect the charger to your battery. This charger is a valuable tool for maintaining battery health and preventing voltage drops.

Ultra Clear PV Glass:

Thanks to the clear PV glass, this device is highly efficient at charging, and its compact and portable design makes it convenient to carry around.

Eco-friendly & Versatile:

Wet, Gel, SLA, AGM, and Deep Cycle batteries can easily be charged with this eco-friendly charger, which is suitable for most cars, trucks, motorcycles, tractors, ATVs, snowmobiles, and boats.

Easy to Use:

Using this solar charger is very simple. You just need to connect the positive and negative posts on the battery to the corresponding posts on the PV panel. Make sure that the solar panel is facing the sun, and then let it charge for a few hours.

Low Maintenance:

You can keep this charger clean and working well with low maintenance. Simply wipe down the panels with a damp cloth every few months and check that there are no objects blocking the sun from reaching the panels.

It is not intended to recharge a dead battery but instead to prevent a charging battery from draining to dead while the vehicle is not in use.


  • The suction cups provided do not appear to be very strong.
    • You may need to purchase stronger ones if you intend to use this charger in a windy environment.
  • The plastic case around the glass is prone to warping in the sun.
    • Keep the charger in the cab of the truck, where it will be out of direct UV sunlight but still capable of utilizing solar power.


The Sunway solar portable solar powered battery trickle charger can be beneficial to you thanks to its overcharging protection, easy-to-use, reliable, and eco-friendly features.

3. Suner Power 12V Waterproof Solar Battery Trickle Charger & Maintainer

This trickle charger and maintainer from Suner Power is designed to ensure your 12V dump trailer’s battery is charged and maintained in a reliable and efficient manner.

Highlighted Features:

  • Equipped with an MPPT chip for efficient charging
  • 3-stage smart charging algorithm for reliable battery maintenance
  • Visual LED indicator for determining charge state
  • Automatic stop charging when the battery is full
  • SAE cable kit included for easy installation
  • Reverse polarity protection for avoiding malfunctions
  • Water-resistant for all-weather use
  • Overvoltage, discharge, and short-circuit protection
  • Spark-proof that protects against fire

Intelligently Charging Management:

The charger is incorporated with an intelligent MPPT charge controller that efficiently manages to charge, allowing it to generate up to 10 to 20 percent more power than traditional controllers.

Your battery will thus be able to last longer. Also included is a 3-stage smart charging algorithm, which is designed to charge and maintain your battery regardless of the season. It can be a wise choice for those who wish to keep their car battery in top condition.

Visual LED Indicator:

Using the visual LED indicator, you can determine the state of the battery charge. If the light blinks green, it means that the sunshine is effective and has not been activated yet.

A red blinking light signals the trickle charger is charging the battery. When the light is solid green, the battery is fully charged. The final indicator is a solid red light, which indicates an error and reversed polarity.

Automatically Cut-Off System:

As soon as the battery has fully charged, the charger will automatically stop, and the charging will resume when the battery has discharged. This means there is no risk of overcharging your battery, which will help extend its lifespan.

Safety Protection:

A variety of protection mechanisms are built-in, including discharge, short-circuit, and overvoltage protection. Due to these features, your battery will be protected from malfunction. 

There is no risk of fire since it is also spark-proof. It is also equipped with reversed polarity protection. It’s a good way to avoid ruining your battery if the polarity gets reversed.

Water Resistance:

With this solar battery maintainer and charger, you can use it regardless of the weather conditions. You do not need to be concerned about water getting into it since it is water-resistant. It will prove useful over a long period of time.

Durable Build:

There is a solid and sturdy housing that can withstand exposure to the elements. The heavy-duty tempered glass and durable abs engineering plastics ensure that this solar battery maintainer & charger is both well constructed and durable.

It is also rated for high efficiency, so you can be confident that your batteries are receiving maximal charging power.


The charger is easy to use and works smoothly even in cold weather conditions. This will help to keep your batteries charged and maintained in any season.

Easy Installation:

An SAE cable kit is included with the charger for ease of installation. You can begin using this charger immediately. All you need to do is connect the battery and the solar panel, and you are ready to go.


  • The battery connectors are short, which can be troublesome when trying to reach a battery that is not easily accessible.
    • You can extend the length of the wires with a little troubleshooting.
  • There is a possibility that it may not be able to charge a battery quickly, especially if you live in a location with little sunlight.
    • This is not a major problem as this charger provides sufficient charging capability, and it is still an effective way to reduce energy consumption.


You may try using the Suner Power 12V waterproof solar battery trickle charger & maintainer since the features that are provided are quite useful to maintain your 12V battery.

4. OYMSAE 20W 12V Solar Battery Charger With Automotive Cigarette Lighter Plug

OYMSAE offers you this solar battery charger that keeps the battery of your dump trailer charged efficiently. You will benefit immensely from using this charger. There is no need to worry about your battery dying while you are traveling.

Highlighted Features:

  • Equipped with a built-in charging microprocessor for optimal protection
  • Lightweight and slim design for easy portability
  • Indicator lights for charging status monitoring
  • Easy installation using SAE cable kit included
  • Includes suction cups and a cigarette lighter plug for convenience
  • ETFT material makes it water and dust-resistant 
  • Reverse charging protection included

Anti-Dust Coverage:

Due to the ETFT material used on the solar panel charger, it is water and dust-resistant, so it is not susceptible to being worn out during extended outdoor use.

Simple Installation:

The unit can be easily installed and connected directly to your car battery. Three pieces of the SAE cable kit are included for easy and fast installation. With the included suction cups, the solar panel can be easily attached to any smooth, solid surface, and the charger also has the convenience of a cigarette lighter connection.


As this solar panel battery maintainer is lightweight and slim, it can be carried around easily wherever you go. This will ensure that you always have a reliable source of power when you need it most.

Protective Plastic Diffuser:

With a plastic diffuser installed over the solar cells, you don’t have to worry about them deteriorating. There is a layer of epoxy board on the bottom of the solar cell that enhances its strength.

Sufficient Power:

It has 20W power, which can provide enough power for charging a 12V battery. This charger is useful for those who have automobiles, dump trailers, motorcycles, ships, snowmobiles, etc. because it can be used for all of them.

Convenient Indicator Lights:

You will be able to monitor the charging status of your rechargeable batteries with this charger, as it is equipped with indicator lights. A blue light indicates that it has been exposed to sunlight. 

There is a red light to indicate it is charging, and a green light to indicate it has completed charging. Whenever all three lights are out, a short circuit has occurred.

Over-voltage, Overcharge, Short Circuit Protection:

The charger is integrated with a charging microprocessor that offers overvoltage, short-circuit, and overcharge protection. It is also protected against reverse charging, allowing it to be used for both charging and maintaining 12V batteries.


  • The wire and connectors are quite small, which may pose an inconvenience when trying to connect the battery over a considerable distance.
    • The length can be extended with some additional materials, so it is not a major concern.


On the whole, the OYMSAE solar battery charger can be a viable option if you are searching for a reliable and efficient solution to maintain your battery charge.

It is easy to install and use, and its charge indicator light makes it easy to monitor the charge. Aside from its protection against reverse charging, this charger makes it a desirable option for charging as well as maintaining 12V batteries.

5. SOLPERK Marine Solar 12V Battery Charger Mounting Bracket

Since the direction of the sun changes throughout the day, having a solar charger that can adjust its angle to receive the most direct sunlight is essential for optimal power generation.

SOLPERK’s solar charger has a 360-degree adjustable bracket that allows you to get the best sunlight reception no matter what time of day it is. This means that you can rely on your solar charger to keep your batteries topped off, even when the sun isn’t cooperating.

Highlighted Features:

  • 360-degree adjustable bracket for optimal sun exposure
  • Rust-resistant aluminum frame for durability
  • LED indicator to show charging status
  • Waterproof tempered glass panel for all-weather use
  • High-efficiency design for maximum power output
  • The smart charging algorithm prevents overcharging and extends battery life
  • Mounting accessories included for easy installation

Rust-Resistance Aluminum Frame:

Aluminum serves as the frame of this solar battery charger, so it will last for a very long time. The material will not corrode or rust, which is a big plus for anyone using the product in a damp environment.

LED Indication:

An LED indicator is located on the charger, which indicates the charger is in the charging mode so that you will know when it is charging. This feature will help you to keep the battery fully charged.

Water Resistance:

Due to the charger’s durable tempered glass, it is water-resistant, meaning you can use it in wet conditions without worrying. You can use the charger no matter what the weather conditions are.

High Efficiency:

This charger is designed to provide a higher charging efficiency, so you can get the most out of your solar panels. The charger also features a trickle-charge feature that allows you to charge your RV battery continuously, ensuring peak performance throughout the entire charge process.

Smart Charging Algorithm:

This solar battery charger features an intelligent three-stage charging system, it prevents overcharging, over-discharging, overvoltage, and short circuits. This means that your rechargeable batteries will last longer and perform better.

Mounting Accessories Included:

Mounting accessories are included, which make it easy to install this marine solar 12v battery charger mounting bracket on the ground, the wall, or the roof, and the charging process is quick and efficient.


  • There is no cigarette lighter cable included with the kit.
    • You can easily find and purchase one separately, and it is very affordable.
  • The wing nuts included with the bracket do not easily attach to the bolt due to poor threads on the nuts.
    • Simply replace the wing nuts with better-quality mounting hardware to fix the problem.


If you prefer an adjustable bracket, rust-resistant aluminum frame, LED indicator, waterproof qualities, and a smart charging algorithm, you may want to think about the SOLPERK solar charger.

Best Solar Battery Charger for Dump Trailer Comparison Chart:

Product NameWattageReverse Charging ProtectionWeightLight Indicator
ECO-WORTHY 12 Volt Portable Power Solar Panel Battery Charger5Yes0.76 PoundsYes
Sunway Solar Battery Trickle Charger4Yes‎1.41 poundsYes
Suner Power 12v Solar Battery Trickle Charger12Yes3.27 poundsYes
OYMSAE Solar Battery Charger20Yes2.35 poundsYes
SOLPERK Solar 12v Battery Charger20No3 poundsYes

Factors to Consider When Choosing a Solar Battery Charger for Dump Trailer

battery power

If you are considering a solar battery charger for your dump trailer, there are a few things you will need to keep in mind. This will ensure that you purchase the charger that is best suited for your needs.

Please read over the following factors carefully before making your final decision. When you have considered all of these factors, you can make an informed choice and purchase the most appropriate solar battery charger.

1. Solar Panel Wattage

Selecting the best dump trailer solar battery charger requires that you consider the wattage of the solar panel. A solar panel’s wattage determines the amount of power it can produce. The specific wattage will depend on the size of the charger and the number of solar cells it has.

Higher wattage means that the panel will be able to generate more power, providing a quicker charge for your batteries. Be certain that the solar charger that you select has enough wattage to charge the battery to the desired rate.

Most solar chargers for dump trailers have a capacity of around four to twenty watts. This is usually more than enough to provide an adequate charge for the battery of your trailer.

2. Battery Type

Think about what kind of battery you’re going to use with the solar charger. There are mainly deep cycle batteries used in RVs and trailers. Deep cycle batteries fall primarily into two categories, lead-acid and lithium-ion.

Make sure to choose the right type of charger according to the battery capacity you will be using. There are several ways to identify what type of battery is used in your dump trailer. First, check the owner’s manual. The manual should have a section that lists the specifications for the battery, including the model number and voltage.

If you don’t have the manual, you can also check the label on the battery itself. You can also contact the manufacturer of your dump trailer to find out what type of batteries are used. They should be able to give you the information you need.

3. Charging Speed

maintain batteries

The charging speed is another important consideration. Several factors affect the charging speed of the panels, including the number of panels, the wattage of the panels, and the efficiency of the solar charge controller.

A fast charger will be able to replenish the batteries more quickly, reducing downtime and ensuring that the trailer is always ready to go. Search for a solar charger that charges quickly. This will greatly simplify your life, especially if you use the trailer frequently.

4. Built-In Blocking Diode

You should buy a charger that has a blocking diode. A blocking diode is an electronic component that allows current to flow in one direction only. It is used for protecting electronic circuits from reverse currents.

When connected in parallel with the panel, it prevents the panels from draining the battery at night. A solar battery charger with a built-in blocking diode is therefore essential for preventing reverse currents and protecting your solar panel from deterioration.

5. Cable Length

Consideration should be given to the length of the cable. The cable must be long enough to reach between the solar panel and the battery, and it should have a rating that is at least as high as the voltage of the panel.

Cables should also be made from materials that will withstand exposure to sunlight and heat. You need a thick cable that can handle the current from the solar panel.

By carefully selecting a charger with the proper length and rating, you can ensure that your trailer’s battery will be able to take full advantage of the power produced by the solar panel.

6. Overcharge Protection

Any solar battery charger should contain an overcharge protection feature. Through this feature, the batteries are not charged beyond their maximum capacity. This can happen if the solar charger is left in direct sunlight for too long or if the panel’s voltage is too high. 

If the batteries are overcharged, they will be negatively affected and will need to be replaced. It is advisable to select a solar charger with an automatic shut-off feature to ensure that it stops working once the batteries are fully charged. Doing so will prevent battery degradation and help extend battery life.

7. Short Circuit Inhibition

battery plates

The protection against short circuits is one of the most important factors to take into account.

Short circuits can happen when the positive and negative terminals of the battery come into contact with each other, which can result in battery destruction and lead to a fire.

This feature helps to prevent the deterioration of your batteries in the event of a power surge, and it can ultimately save you money by extending the life of your batteries.

Look for a charger that includes an adjustable current limiting feature, as this will allow you to customize the amount of charge that is delivered to your batteries.

8. Build Quality

In order to ensure that your solar battery charger is of the highest quality, there are a few build factors you’ll want to consider. Firstly, make sure that the panels are made of sturdy, high-quality material.

If they’re not, they won’t be able to withstand the elements as well as they should and will break down over time. Verify that your solar cells are properly sealed and have a high conversion efficiency. It will allow them to generate as much energy as possible through the sun.

9. Portability

The charger you choose should be small and light enough to be easily moved from one location to another. This will allow you to take advantage of the sun’s rays no matter where you are.

Having a portable charger is particularly important if you plan on using it in a variety of environments. If the charger is too large or too heavy, it will be difficult to transport and set up. A carrying case should also accompany the charger so that it can be transported easily.

10. LED Indicator

It is useful to have an LED indicator in order to keep track of the charging process. You will be able to determine when the batteries are fully charged and can be removed from the charger.

An LED light also lets you know if there’s a problem with the charging process, so you can figure it out. To identify that the charger has this feature, look for an indicator light on the front of the unit. 

Some models will have multiple lights that indicate different charging stages. You can find all of this information in the manual that comes with the charger.

11. Water Resistance

patented pulse technology

Due to the fact that solar chargers are typically used outside, it is imperative that they withstand extreme weather conditions. The ability to resist water is an important feature to look for as it will ensure that the charger can be used in any weather condition.

You can evaluate a solar charger for water resistance in several ways. Check the product description or packaging. Many manufacturers will list whether their chargers are water-resistant.

You should also take a close look at the solar panels themselves. If they have a protective coating or laminate, they are likely to be more resistant to water penetration.

The design of the charger should also be considered. If it has exposed wires or connectors, it is probably not as good at protecting against moisture. By taking these factors into account, you can make an informed decision about whether a solar charger is right for you.

12. Ease of Installation

The process of installing a solar battery charger should be considered. If the installation is not easy, it will take a lot of time and effort. Try to find a charger that comes with clear instructions and everything you need for installation.

Some models feature suction cups to facilitate installation. It is a wonderful method to avoid the need to drill holes or to use any other tools during installation. There are some models that also come with a built-in mounting bracket, allowing you to easily attach it to a surface.

Frequently Asked Questions:

There are still a lot of people who are not aware of solar chargers. Below are some frequently asked questions that might help you understand more about it.

1. How Do You Install a Solar Charger on a Dump Trailer?

For installing the solar charger, first, you need to identify the right location on the trailer. It is essential to find a spot where the solar charger will get direct sunlight most of the day.

Once you have found the perfect location, clean the surface area and make sure there are no obstructions that could block the sun. Next, use the included mounting hardware to attach the solar charger and controller to the trailer.

If your solar charger includes suction cups, simply attach them to a smooth surface. In case the model is equipped with a mounting bracket, you will need to drill holes in it and secure it with bolts.

2. How Do You Charge a Trailer Battery with a Solar Panel?

pj trailer

Using a solar panel to charge the trailer’s battery is a straightforward procedure. First, you need to connect the solar panel to the battery using the included cables. The positive cable will need to be connected to the positive terminal of the battery, and the negative cable would require a connection to the negative terminal. Once the cables are properly connected, the solar panel will begin charging the battery.

3. How Long Does It Take to Charge a Trailer’s Battery Using a Solar Panel?

A solar panel will charge a trailer’s battery in a variable amount of time, depending on the size of the battery and the capacity of the solar panel. In most cases, it will take between five to eight hours to fully charge a 12-volt battery with a 10-watt solar panel. Make sure to check the specifications of your solar panel and battery to get an estimate of how long it will take to charge.

4. What is the Lifespan of a Dump Trailer Solar Charger?

A dump trailer solar charger’s lifespan will depend on a few factors, such as the quality of the materials used and how often it is used. Generally speaking, a solar charger can be anywhere from 3 to 25 years with proper care. You should always follow the manufacturer’s instructions to prolong the lifespan of your solar charger. This will help you avoid any problems that could occur from improper use.

5. Can I Use a Solar Charger in Cold Weather?

A solar charger for an RV can be used in cold weather. You should keep a few things in mind. The first is that the temperature will influence the charging capability of the battery. It is generally said that the colder the temperature is, the less charge the battery will hold. 

You should also ensure that the solar panels are mounted in such a way that they will still be able to capture sunlight. This means that if you’re traveling in a snowy area, you’ll need to clean the panels regularly. Lastly, you may want to invest in a solar panel cover or tarp to protect against wind and snow erosion.

Can I Use a Solar Battery Charger for a Trailer Winch?

When it comes to using a solar battery charger for a trailer winch, finding the top battery selection for trailer winch is crucial. A solar battery charger can be a handy and eco-friendly option to power your winch on the go. By selecting the right battery, you can ensure optimal performance and reliability for your trailer winch.


You now understand why it is necessary to find the best solar battery charger for dump trailers. This will help you to get rid of the problem of charging your trailer’s battery now and then. Your trailer’s battery will also be maintained for a longer period of time.

Comparing each product according to its advantages and disadvantages will allow you to decide which best suits your needs. Make sure to keep the above-mentioned factors in mind as you make your final choice. This will help you get the proper product and make the most out of it.

ECO-WORTHY Solar Car Battery & Trickle Charger 5W Solar Panel Power 12V Batteries Maintainer Portable Waterproof Built-in Blocking Diode for Automotive Lawn Mower Camping Car Boat Motorcycles Truck
  • 🚘[Efficient Energy Use] – Save energy and protect the environment with our built-in blocking…
  • 🚘[Versatile Use] – Our trickle charger/maintainer is perfect for 12V batteries in cars,…
  • 🚘[Intelligent Charging] – Our charger features a built-in intelligent charging controller chip…

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