12 Best Trickle Chargers of 2019 – Reviews and Buyer’s Guide

Best Trickle Charger

The trickle charger is a useful type of charger that will prevent your vehicle's battery from discharging.

This will prove to be highly beneficial especially for those who do not use their vehicle for an extended period of time.

You will simply not lose any battery charge even if you power on your vehicle many months down the line. Now, you can freely go on a vacation and not worry about a battery discharge.

Unfortunately, many people often confuse the trickle charger with a regular battery charger. There are differences.

The main difference is that the trickle charger sends a small but consistent charge to your battery so as to keep it charged at all times. It is also significantly less expensive than a regular car battery charger.

On the other hand, the regular battery charger is intended for speed and is used to charge a dead car battery as fast as possible. It usually sends more amperage and is more heavy-duty than the trickle charger.

If you are fresh on the market for a trickle charger, then our trickle charger review below has you covered. We have hand-picked some quality trickle chargers and give you our opinions.

Let’s see which model you need to buy right now!

12 Best Trickle Chargers – Reviews

Image

Product Name

Amperage

Voltage

Display

Rating

Current Price

Battery Tender 021-0123 Junior Battery Charger

1. Battery Tender 021-0123 Junior Battery Charger

750 mA

12 V

LED indicator

4.6

Noco Genius UltraSafe Smart Battery Charger

2. Noco Genius UltraSafe Smart Battery Charger

3.5 A

6 V / 12 V

LED indicator

4.2

Battery Tender Plus 021-0128 Trickle Charger

3. Battery Tender Plus 021-0128 Trickle Charger

1.25 A

12 V

LED indicator

4.6

Foval Automatic Trickle Battery Charger

4. Foval Automatic Trickle Battery Charger

1 A

12 V

LED indicator

4.6

Suaoki Smart Trickle Charger

5. Suaoki Smart Trickle Charger

7 A / 3.5 A

12 V

LCD display

4.6

Leicestercn Trickle Battery Charger

6. Leicestercn Trickle Battery Charger

1.5 A

6 V / 12 V

LED indicator

4.4

BMK BlueMickey Trickle Battery Charger

7. BMK BlueMickey Trickle Battery Charger

5 A

12 V

LED indicator

4.4

RAVPower Trickle Charger

8. RAVPower Trickle Charger

1.5 A

12 V

LED indicator

4.4

Black & Decker Battery Charger with Cable Clamp

9. Black & Decker Battery Charger with Cable Clamp

2 A

12 V

LED indicator

4.0

OrionMotorTech Automatic Trickle Charger

10. OrionMotorTech Automatic Trickle Charger

1.2 A

12 V - 14.8 V

LED indicator

4.0

Supernatto Smart Compact Trickle Charger

11. Supernatto Smart Compact Trickle Charger

750 mA

12 V

LED indicator

4.0

Sunforce 50022 Solar Trickle Charger

12. Sunforce 50022 Solar Trickle Charger

415 mA

12 V

N/A

3.7

1. Battery Tender 021-0123 - Excellent for Small Batteries

Editor's Rating: 4.6 out of 5 stars (4.6 / 5)

Battery Tender 021-0123 Junior Battery Charger
  • Amperage: 750 mA
  • Voltage: 12 V
  • Display: LED indicator

Most trickle chargers are usually intended for owners for big vehicles with big batteries. However, if you have a vehicle with a small battery, then this model should interest you.

It has a capacity of only 750 mA, which is small when compared to other models in this review. You will need to connect this trickle charger on a wall socket as it uses a regular plug.

Also, it has a slim and compact form factor so it will not take a lot of space on your electric wall socket. It will definitely not be an eyesore in your garage.

Furthermore, it has an LED indicator that will show you the charging status at all time. It will light red or green, which is quite limited in indication but it’s still better than nothing.

All in all, if you’re looking for a small and compact trickle charger for a small battery, this model is one of the best trickle chargers for small batteries on the market.

Pros:

  • Small and compact. Does not need a lot of space
  • Smart trickle charger with a microcontroller for automatic voltage regulation
  • Safe. The terminals can be connected in reverse with no fire hazard
  • Efficient battery charging with an automatic 4-step charging process

Cons:

  • Weak capacity of 750 mA
  • Limited LED indicators

2. Noco Genius G3500 UltraSafeA Professional Grade Trickle Charger

Editor's Rating: 4.2 out of 5 stars (4.2 / 5)

Noco Genius UltraSafe Smart Battery Charger
  • Amperage: 3.5 A
  • Voltage: 6 V / 12 V
  • Display: LED indicator

The Noco Genius contains advanced features that make it a fully functional and reliable trickle charger. It can be used in a wide range of vehicles, ranging from trucks, boats, to regular cars.

But what makes this trickle charger unique is its ability to work at different voltages of 6 V and 12 V. With such a voltage versatility, you can use it on 6 V motorcycles and regular 12 V vehicles with equal ease.

The voltage switching is all automatic, so you simply have to connect the terminals to your battery, and you are good to go.

What we also like about this model is that the LED indicators are very useful.

You have an indicator that shows you the total charge of the battery, as well as various other battery charging modes.

If you are the type of person who needs to know the exact charge state of your battery, then the Noco Genius is one of the best battery trickle chargers on the market.

Pros:

  • A professional grade trickle charger
  • Many useful LED indicators
  • Versatile. Works with both 6 V and 12 V batteries
  • Flexible. Available in different capacities depending on your need

Cons:

  • The price. It is more expensive than others
  • Difficult to get a warranty on this charger

3. Battery Tender Plus 021-0128 - A Versatile & Portable Trickle Charger

Editor's Rating: 4.6 out of 5 stars (4.6 / 5)

Battery Tender Plus 021-0128 Trickle Charger
  • Amperage: 1.25 A
  • Voltage: 12 V
  • Display: LED indicator

What separates the Battery Tender Plus from the rest of the competition is its portable form factor.

You are not limited to connecting this trickle charger to an electric socket. It has a long 6 feet power cord that will allow you to extend it and place it under the hood of any vehicle.

Even if the LED indicator is quite basic, it will give you a good idea of how well it is charging your car battery.

Furthermore, the circuitry inside has been made in such a way that it will send a reliable charge to your car battery, preventing it from discharging over time.

In fact, this trickle charger has been designed to both charges a battery as well as maintain its voltage over time.

If you don’t plan to use your vehicle for an extended period of time, then we seriously recommend that you consider the Battery Tender Plus because it is a reliable and top-rated trickle charger for the money.

Pros:

  • Portable and versatile
  • The long power cord of 6 feet allows you to extend this trickle charger
  • Versatile. Both charges as well as maintains the voltage of the battery

Cons:

  • It will struggle to charge a big battery because of its small capacity of 1.25 A
  • Expensive considering the capacity of 1.25 A

Notes

This trickle charger can also be used as a battery charger. Although, the low capacity of 1.25 A means that it will take time to fully charge a big battery

4. Foval Automatic BC01B-1 - Great Price & Intuitive LED Indicators

Editor's Rating: 4.6 out of 5 stars (4.6 / 5)

Foval Automatic Trickle Battery Charger
  • Amperage:1 A
  • Voltage: 12 V
  • Display: LED indicator

If you are on a small budget and still need a fully functional trickle battery charger, then the Foval is an excellent choice. Indeed, it has an excellent price to performance ratio.

In addition, it contains 3 LED indicators. Those indicators will show you if the battery is charging when the battery is fully charged as well as indicate you if there is some sort of error with the charging process.

Connecting this trickle charger to any battery terminal is very easy. It comes with 2 types of terminal connectors like O-rings and alligator clips to make it even easier.

Furthermore, there is a small circuitry inside this trickle charger that will not only charge your battery safely but also prevent it from discharging.

This means that your battery will not discharge even if you use it for 1 day or 6 months without starting your vehicle.

Based on price and functionality, we nominate the Foval as one of the best automobile trickle chargers for the money.

Pros:

  • Affordable price. Value for money
  • A smart and fully automatic trickle charger
  • Comes with 2 types of battery terminal connectors for ease-of-use

Cons:

  • Low capacity of 1 A. Not ideal for big batteries

5. Suaoki 019 - High Performance & Informative LCD Display 

Editor's Rating: 4.6 out of 5 stars (4.6 / 5)

Suaoki Smart Trickle Charger
  • Amperage: 7 A and 3.5 A
  • Voltage: 12 V
  • Display: LCD display

The Suaoki is the only trickle charger in this review that is equipped with an LCD display.

This LCD display will provide you with a wide range of information, from the voltage, amperage as well as how fast the battery is charging.

One noteworthy feature of this model is that it has the ability to show you on its display the type of battery it is connected to.

For example, if you connect it to a lead-acid battery, then it will display “lead-acid” on the screen. If you connect it to an AGM battery, it will display “AGM,” etc. Very neat!

It is also equipped with many technologies inside that will make the charging process safe. But what we really like about this trickle charger is its capacity.

Indeed, there is a fast charge function in this trickle charger that will allow it to charge a battery very fast.

It does so by boosting the amperage up to 7 A which makes it the best trickle charger in this review based on performance alone.

Pros:

  • Big charging capacities of 3.5 A and 7 A
  • Informative LCD display
  • Versatile. Able to charge and maintain any type of battery

Cons:

  • The price. It is expensive

Notes

This device is very versatile and can be used both as a regular battery charger as well as a trickle charger.

6. Leicestercn EPA1020-0612 - Versatile 6 V & 12 V Trickle Charger

Editor's Rating: 4.4 out of 5 stars (4.4 / 5)

Leicestercn Trickle Battery Charger
  • Amperage: 1.5 A
  • Voltage: 6 V / 12 V
  • Display: LED indicator

If you want versatility, and then it is difficult to beat the Leicestercn. It has a voltage of 6 V as well as 12 V. This means that it is able to charge any battery type, whether it is a car battery or a motorcycle battery.

The LED indicators of this trickle battery charger remain quite basic. It will show you when it is charging at 6 V or 12 V.

Additionally, it also has the functionality to show you when the battery is fully charged or if there is some sort of problem with the charging process.

Since this trickle charger is equipped with a smart circuitry, it will prevent any type of overcharging from happening which make it safe to use.

You can leave this trickle charger to connect to your battery for many months, and it will keep working safely.

Pros:

  • Flexible. Possibility to purchase it in higher capacities
  • Safe. Contains many smart electronics inside that prevents overcharging
  • Uses spark free connectors

Cons:

  • The 1.5 A version is low capacity
  • The power cord is not very long

7. BMK BlueMickey - A High Capacity Trickle Charger 

Editor's Rating: 4.4 out of 5 stars (4.4 / 5)

BMK BlueMickey Trickle Battery Charger
  • Amperage: 5 A
  • Voltage: 12 V
  • Display: LED indicator

With its amperage of 5 A, the BMK BlueMickey is a high-capacity trickle charger.

This device will not only behave like a trickle charger, but it can also be used as a regular battery charger due to its high amperage output.

Furthermore, it is slim and compact so you will have no difficulty installing it under the hood of your vehicle.

The LED indicators in this trickle charger are quite good. It will show you the charging process anywhere from 25% up to 100% where it is fully charged.

Also, it uses a smart and 4 stages charging process that is fully automatic and safe.

If you’re looking for high capacity and yet compact unit, then we highly recommend this top-rated trickle charger even if it is slightly expensive.

Pros:

  • High capacity of 5 A
  • Smart 4 stage charging process
  • Safety features like anti-reverse, over-charge protection, and over-temperature
  • Versatile connectors. Comes with ring connectors as well as regular battery prongs

Cons:

  • Slightly expensive

8. RAVPower US RP-PC032 - Small, Compact, & Works with Any Battery 

Editor's Rating: 4.4 out of 5 stars (4.4 / 5)

RAVPower Trickle Charger
  • Amperage: 1.5 A
  • Voltage: 12 V
  • Display: LED indicator

The main advantage of the RAVPower is its versatility. Indeed, this trickle battery charger will work with any type of battery, whether it is a 12 V boat battery, car battery, etc.

It has a capacity of only 1.5 A which is not the best we have seen, but still more than enough to prevent your battery from discharging.

This trickle charger cannot be used as a regular battery because it simply lacks the power, but this is not what it has been designed for.

The LED indicator is very basic. It will show you if the trickle charger has power and if it is charging or not. That’s it.

The power cord is quite long so you will be able to charge your battery at a distant location.

Furthermore, you get both an alligator clip as well as a ring connector with this purchase which will allow you to connect it to a wide range of batteries with ease.

Pros:

  • Affordable and value for money
  • Small and compact
  • Comes with both ring connectors and alligator clips

Cons:

  • Basic LED indicators
  • Not ideal for charging a big battery

9. Black & Decker BC2WBD - Durable & High-quality 

Editor's Rating: 4 out of 5 stars (4 / 5)

Black & Decker Battery Charger with Cable Clamp
  • Amperage: 2 A
  • Voltage: 12 V
  • Display: LED indicator

If you’re looking for a durable, heavy duty, and reliable trickle charger for amateur or professional use, then this Black & Decker charger is an excellent choice for you.

Indeed, based on build construction and reliability alone, this model is one of the best trickle chargers for cars out there.

The rugged build construction means that this is a trickle charger that is built for heavy-duty use. Even if it falls, it will not break as it is protected with a thick plastic outer shell.

Furthermore, this model delivers 2 A of power which is not the highest capacity we have seen, but still more than enough to trickle charge any type of battery.

Note that if this capacity is too small, then you can also get this model in a 6 A variant for more heavy-duty battery charging.

Pros:

  • Rugged build construction. Durable and long-lasting
  • Useful and informative LED indicators
  • Sealed and fully waterproof. Can be used outdoors
  • Flexible. Ability to purchase it in a 2 A and 6 A model

Cons:

  • Cannot be used to recharge a dead battery

Notes

The 2 A variant of this trickle charger is not recommended to be used to trickle charge a high amperage battery as it may wear it down over time.

10. OrionMotorTech Automatic OMT-BCE-1212 - Extremely Affordable Charging Solution

Editor's Rating: 4 out of 5 stars (4 / 5)

OrionMotorTech Automatic Trickle Charger
  • Amperage: 1.2 A
  • Voltage: 12 V - 14.8 V
  • Display: LED indicator

If you want the cheapest trickle charger you can buy in this review; then the OrionMotorTech will not disappoint. Indeed, it is the most inexpensive trickle charger for the money.

However, cheap does not necessarily mean bad.

Indeed, this trickle charger is equipped with functionalities like a microprocessor that controls the charging voltage. It is also very easy to use, and the charging operation is fully automatic.

Best, it comes with a 5-year warranty by the manufacturer.

Moreover, the charging voltage is quite flexible as this trickle charger is able to charge any type of battery with 12 V up to 14.8 V. This makes it quite versatile and a surprising functionality considering its price.

Due to the amperage of 1.2 A of this trickle charger, it cannot be used to trickle charge a heavy AGM battery, for example. It is mostly for small batteries.

The bottom line is, if you are on a very small budget and still need a trickle charger then the OrionMotorTech is the best battery trickle charger based on price alone.

Pros:

  • The most affordable solution in this review
  • Automatic charging process. Microprocessor controlled
  • The flexible charging voltage of 12 V to 14.8 V

Cons:

  • Not heavy-duty
  • Cannot be used to charge big batteries

11. Supernatto 5823997009 - Mini Universal 12V Charger

Editor's Rating: 4 out of 5 stars (4 / 5)

Supernatto Smart Compact Trickle Charger
  • Amperage: 750 mA
  • Voltage: 12 V
  • Display: LED indicator

One of the biggest advantages of the Supernatto is its small and compact form factor. It can be placed under the hood of any small vehicle, and it will not consume a lot of space.

Moreover, it comes with all accessories which include ring connectors as well as alligator clips so that you can use it on a wider range of batteries out there.

The amperage of 750 mA is not the most powerful we have seen. However, when used to trickle charge a small battery, it definitely gets the job done.

When it comes to indication, no problem there because the LED indicators are quite useful. They will show you when your battery needs charging and when it is fully charged. Quite basic but fully functional.

Pros:

  • Cost effective trickle charger
  • Small and compact. Does not need a lot of space under the hood
  • 3 Useful LED indicators
  • Flexible. Comes with both O-rings and alligator clips

Cons:

  • The wires are a bit thin
  • The small charging capacity of 750 mA

12. Sunforce 50022A Universal Solar Trickle Charger

Editor's Rating: 3.7 out of 5 stars (3.7 / 5)

Sunforce 50022 Solar Trickle Charger
  • Amperage: 415 mA
  • Voltage: 12 V
  • Display: N/A

The Sunforce has an atypical shape compared to other trickle chargers we have reviewed so far. Indeed, this model is only a solar panel and does not have any LED indicators.

All that you get out of the box is a battery terminal connector, a car adapter, and some mounting screws so as to install it anywhere you want on your vehicle.

The way these trickle charger works is you connect it in a strategic position where it will get sunlight. In turn, this solar panel will convert the solar energy into electricity and charge your battery. All the circuitry is found inside the panel.

The only caveats are that there are no indicators that show you what is going on. Furthermore, this solar panel also needs to get direct sunlight for it to work properly.

Pros:

  • Versatile. Can be used on any battery type
  • Smart circuitry inside with overcharge and discharge protection
  • Fully waterproof. Durable and long-lasting

Cons:

  • Needs sunlight for it to charge
  • No LED indicators

Notes

This trickle charger is ideal for external use only where it will get abundant source sunlight

How to Buy the Best Trickle Charger

How to Buy the Best Trickle Charger

#1. Types of Trickle Charger

There are basically 2 types of trickle chargers on the market.

Dumb

The dumb trickle charger is the most affordable option out of the 2. It is usually made from a simple circuitry with 2 wires that connect directly into the battery terminals.

However, despite being highly affordable, it lacks a monitoring system, so you don’t know exactly how much power it is sending to the battery.

If this is not an issue, then the dumb trickle charger is an excellent choice especially considering its low price.

Smart

The smart trickle charger is quickly becoming the industry standard.

It has many technologies inside like a dedicated microprocessor that allows it to monitor the charge of the battery at all times. Such that it can charge the battery more efficiently.

Indeed, this type of trickle charger usually has a sort of display that will show you what is going on.

Even if prices of the smart trickle charger are quickly falling, it is still more expensive than the dumb trickle charger.

If you need to monitor the voltage of your battery at any given time, then the smart trickle charger is the right choice for you.

In fact, some of the best trickle chargers on the market are smart chargers rather than dumb.

#2. Engine Size

The engine size goes hand-in-hand with the type of battery that your vehicle is equipped with.

In general terms, the bigger the engine of the vehicle, then the bigger the battery would be as well so as to provide enough amperage to start your vehicle.

Therefore, you must also take into account the engine size when purchasing a trickle charger. The bigger the engine size, the higher the capacity of the trickle charger must be.

In general terms, any trickle charger above 2 A should deliver enough charge to prevent a regular size battery from discharging.

#3. Types of Battery

There are several types of batteries on the market. Some are heavy-duty and big so require more amperage to charge. Others are small, and the amperage doesn’t matter much.

So, it is important to know which type of battery your vehicle is equipped with so that you can know the type of trickle charger to purchase.

For example, AGM batteries are usually heavy duty and have a higher capacity. Therefore, you will need a trickle charger with higher amperage.

#4. Display

As we have already shown above, most smart trickle chargers are equipped with a form of display that will show you how much it is charging at all times.

Dumb trickle chargers do not have a display. Therefore, if you need to occasionally check the voltage and see if your battery is charging, then you need your trickle charger to be equipped with a display.

Note that a trickle charger that normally comes with a display is generally more expensive.

Therefore, if you still need a smart trickle charger, then you can easily go with a model that is equipped with an LED indicator instead of an LCD screen.

You will still be able to tell if the trickle charger is charging your battery but at a significantly lower cost.

#5. Easy to use

One of the biggest advantages of the trickle charger is just how easy it is to use by absolute beginners.

Indeed, you do not need any experience to operate the trickle charger.

Simply pop opens your vehicle hood and connects the connectors of the triple charger to your battery terminals. That’s it!

It is that simple to use.

Conclusion

The trickle charger is literally a lifesaver for those who do not plan to use their vehicle for an extended period of time.

It will prevent your battery from totally discharging, and you will not have to replace your car battery. This saves you money in the long term.

One of the best things about the trickle charger is that it is affordable and very easy to use. You absolutely don’t need any car electric knowledge to use the trickle charger.

Lastly, our trickle charger review above contains some handpicked units. Hopefully, you found a model that will prevent your battery from discharging.