Fast chargers are becoming increasingly popular because they take less time to charge electrical devices. In fact, quick chargers charge the respective end device significantly faster than conventional chargers. You can transport more energy and thus save valuable time. Still, you shouldn’t overdo it with the fast loading. Because that could have unpleasant consequences for your battery.
With our big fast charger test we want to help you to find a suitable fast charger. In order to make the purchase decision as easy as possible for you, we have selected the different types of fast chargers for you, compared them and put together the respective advantages and disadvantages.
- Fast chargers charge your device much faster than conventional chargers. They are available for smartphones, for example, but also for standard batteries.
- Fast chargers are particularly suitable for those who are professionally dependent on a fully charged battery. But people who are often short of time can also benefit significantly from a fast charger.
- While a fast charger can be convenient to use, you shouldn’t use it too often. If you use it too often, your device’s battery can suffer. That is why the motto “less is more” applies here.
Best Fast Chargers
Anker Elite Dual Port 24W Wall Charger
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The Anker 24 W USB 2 port in a very solid wall charger at a good price. With its 24 W it can easily supply two digital devices with power. According to the manufacturer, this USB fast charger is internationally compatible and can therefore be used anywhere in the world. Independent of the respective power grid.
The USB fast charger uses PowerIQ and VoltageBoost in one, so that you have the maximum charging speed available. It is very compact and lightweight. So it fits easily in your pocket or handbag. In addition, the manufacturer insures a multi-protection safety system that protects against overheating, overloading and short circuits.
RAVPower 36W Car Charger
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The RAVPower car charger is a rock-solid fast car charger at a fair price. It has 40 W of power and with its two USB ports it can charge two end devices at the same time. According to the manufacturer, it should charge up to ten times faster than conventional car chargers.
The fast car charger uses Quick Charge and can be used universally. It is very compact and can therefore easily be stowed in the glove compartment. In addition, it is protected against overheating and has short-circuit and overcharge protection. These properties make the RAVPower one of the most popular fast car chargers.
RAVPower 7.5W Fast Wireless Charger
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The RAVPower Wireless Charger is a very good, wireless fast charger at a reasonable price. With up to 10 W of power, it charges your smartphone in no time. Note, however, that your cell phone must also be compatible. If it doesn’t have a wireless charging function, try one of the above products.
The RAVPower Wireless Charger can charge any Qi-enabled device via induction and Qi technology. Once placed on the induction field, the end device and charging station communicate with each other so that the required energy can flow. The surface of the wireless fast charger is non-slip. For example, your mobile phone stays safely on the charger even if it vibrates.
VARTA Charger LCD Plug
The Varta LCD Plug is a robust quick charger at a fair price. It fully charges four AA batteries in just four hours. It can also charge AAA batteries and 9V rechargeable Ni-MH batteries. There is also a USB connection so that another device can be charged at the same time.
With a height of only 11 cm, the Varta LCD Plug is extremely compact and handy. It has an LCD bar that shows the charge status. This means that you can check how full the batteries are at any time. In addition, security is ensured by means of a security timer. There is also short-circuit protection. These properties make the Varta LCD Plug one of the most popular quick battery chargers.
Frequently Asked Questions: Fast Chargers
What is a fast charger?
A fast charger is basically comparable to a conventional charger for cell phones, for example. Chargers for batteries and accumulators can also be included.
The small but subtle difference to a conventional charger is the charging time. So the time it takes to charge an end device. Since a fast charger charges with higher currents, the respective end device can be charged in less than two hours. If the battery capacity of a device is very high, it can sometimes take longer than two hours.
How does a fast charger work?
The function of a fast charger is relatively simple. The best way to explain it is with a cell phone.
While a conventional charger charges your mobile phone with a constant voltage (5 volts), the voltage is gradually increased with a fast charger (sometimes up to 20 volts). Just before your mobile phone is fully charged, the voltage is reduced again. This is to save the battery of your cell phone.
You can compare it to driving a car. If you give too much gas, the tires will spin and be damaged. If you brake too hard, the tires will block and be damaged. But if you start off slowly, accelerate carefully and then brake slowly, your tires will hardly be affected.
Who should use a fast charger?
A fast charger is basically suitable for everyone who wants to charge their electronic device faster. And who wouldn’t want to save a little time?
So if you use electronic devices with a built-in battery, you should think about getting a fast charger. However, it would make sense to check beforehand whether the fast charging function is supported by your electrical device.
Time is precious. A quick charger can buy you time.
A fast charger is also a good investment for those who like to forget to charge their cell phone, for example. So you can supply your cell phone with enough power shortly before a party.
A fast charger is particularly suitable for people who depend on a fully charged battery for work. Be it the cell phone that has to be used constantly or the hair clipper.
What are the fast charger alternatives?
If you should notice that a fast charger does not quite fit your needs, we have selected two alternatives for you.
- A power bank is portable but needs to be charged as soon as it is empty
- The capacity depends on the size and ranges from 2500 mAh to 50,000 mAh
- It takes about 10 hours to charge the power bank (depending on the capacity)
Solar Battery Charger
- A solar charger is portable and draws its energy from sunlight
- The capacity depends on the size and ranges from 10,000 to 50,000 mAh
- It takes approx. 6 – 20 hours for a solar charger to be charged (depending on the weather and capacity)
Each of the chargers listed here has its advantages. For example, you can charge your mobile phone on the go without needing a power socket. However, none of the devices presented offers a real quick charge function that charges your battery quickly.
Types of Fast Chargers
There are basically four types of fast chargers that you can choose between:
- USB fast charger: A USB fast charger usually refers to the fast charger that charges the end device via a USB cable
- Fast car charger: A fast car charger usually refers to the fast chargers that can be plugged into a car
- Wireless fast charger: A wireless fast charger refers to the fast chargers that charge wirelessly and via induction
- Quick battery charger: A quick battery charger is usually used to refer to the quick chargers that charge batteries
A quick charger is therefore more diverse than you think. Therefore, pay close attention to which one you choose. To make your decision easier, we have summarized the advantages and disadvantages of the various Fast Chargers in the following section.
USB Fast Charger: Advantages & Disadvantages
A USB fast charger is suitable for all electrical devices whose battery is charged via a USB cable. However, it should be noted that the respective electrical device must be compatible with the fast charger. Otherwise there is a risk of damage to the electrical device. But there are also many USB fast chargers that can be used universally.
In addition, a USB fast charger needs a socket to draw power from it. So it is not portable during the charging phase. However, due to its small size, it is easy to take with you. As soon as a socket is available, it can then be used again.
- Small size
- Up to 60 watts of power
- Compatible with many electrical appliances
- Usually multiple USB ports
- Not always compatible
- Not portable (socket is required)
- Not all USB ports need to have a quick charge function
Such a USB fast charger often has several USB ports. So you can charge several devices at the same time. However, you should check which voltage is specified for the respective USB ports. It is possible that only one of the USB ports is suitable for the quick charge function.
Fast Car Charger: Advantages & Disadvantages
A fast car charger is suitable for all cars that have a cigarette lighter or an on-board power socket (automobile socket). Here, too, it should be noted that the respective electrical device must be compatible with the fast car charger. Otherwise the electrical device could be damaged. But there are also enough fast car chargers that can be used universally.
A fast car charger does not have a connection for an electrical outlet. It can therefore only be used on board power sockets. The number of USB ports is also usually lower than with a USB fast charger.
- Small size
- Can be used in the car
- Compatible with many electrical appliances
- Not always compatible
- Not portable (on-board power socket is required)
- Usually only two USB ports
A quick car charger is therefore particularly suitable for those who travel a lot with their car. However, a fast car charger is not suitable for the socket at home or with friends.
Wireless Fast Charger: Advantages & Disadvantages
A fast wireless charger works wirelessly. This means that your phone will charge without having to connect it to a USB cable. However, a power cord is still required for the wireless fast charger itself.
Your cell phone is charged electromagnetically via an induction field. So you just have to put it on the induction surface. If your smartphone supports this technology, it can now be charged wirelessly.
- Wireless charging
- Easy to use
- Visually appealing
- No dirty USB interfaces
- Not always compatible
- Not portable (socket required)
- Exclusively for smartphones
- Only one device can be charged
You should be aware that, according to our research, a wireless fast charger is only compatible with smartphones that have so-called QI technology. In general, only cell phones can be charged with such an induction charger.
Fast Battery Charger: Advantages & Disadvantages
A fast battery charger is intended for rechargeable batteries. Mostly for AA or AAA batteries. But also fast chargers for the battery of a drill or other electronic devices can be meant. In this chapter, however, we shall only deal with battery fast chargers for rechargeable batteries.
Most rapid battery chargers have four or more slots for each battery. So you can charge several batteries at the same time. This means that they are usually a bit more bulky.
- No costs for new batteries
- Multiple batteries can be charged at the same time
- Not always compatible
- Not portable (socket is required)
- Exclusively for batteries
However, this small deficiency is offset by environmental protection. If you recharge your batteries instead of throwing them away, you are doing something good for the environment.
You should take into account that not all batteries can be charged with such a quick charger. So you need to get special batteries that are compatible with a quick charger. In most cases, however, you will be provided with a set of batteries that are rechargeable.
Fast Charger: Purchase Criteria
In the following we will show you the criteria you can use to find your way around the jungle full of fast chargers.
The criteria to help you make a good decision for yourself include:
- Charging power
- Number of USB ports
In the following sections we explain what is important for the respective criteria.
Compatibility is a very important criterion that you should definitely deal with. Otherwise you may buy a quick charger that does not fit your device.
It is not that every fast charger fits every device. There are some fast chargers on the market that can be used universally, but there are also some that require a supporting function on the part of your end device.
There are also various connections on the respective end devices. Therefore, pay attention to which charging cable you need for your device. The following overview should help you to find the right charging cable:
- Lightning: This connector was developed by Apple and is installed in every Apple smartphone that was developed after 2012
- USB-Type C: Many new devices have now integrated a USB-Type C connection. This should make it possible to load even faster. The transmission of data should also become easier
- Micro-USB: This connection is built into many electrical devices and has been standard in cell phones and other end devices since 2011
So there are a few things to consider when it comes to compatibility. Therefore, check exactly which interface is integrated in your device and whether it supports a quick charge function at all.
The charging power is a key criterion that you should find out about before you buy a quick charger. There are some providers who promise fast charging, but this often has little to do with a fast charging function.
To make sure that a fast charger is actually one, you should pay attention to the wattage. With a conventional charger, this is around 5 to 10 watts. So if a charger with 5 to 10 watts of charging power is described as a fast charger, you should stay away from it.
Basically, you can assume the following rule: the higher the wattage, the more power the respective quick charger has.
So make sure that there is a sufficiently high wattage. But also take into account that a quick charger with two USB ports requires fewer watts than a quick charger with four USB ports. So don’t just focus on wattage.
Number of USB ports
The number of USB ports determines how many devices you can connect to the fast charger. So, if you have multiple electronic devices that can be charged with one fast charger, consider buying a fast charger with multiple USB ports.
As mentioned before, you should pay particular attention to the wattage when using fast chargers with multiple USB ports. After all, more end devices require more power.
So think about beforehand how many USB ports you will need for your purposes and be aware that you can only charge one end device with a wireless fast charger.
- 1 USB port approx. 15 watts
- 2 USB ports approx. 25 watts
- 4 USB ports approx. 30 watts
The number of places in a rapid battery charger should also be pointed out here. There are battery quick chargers that provide four places, but also some that have eight or more places available.
Safety concerns above all battery fast chargers. But you should always make sure that other types of fast chargers have been tested as well. Failure to do so could result in cable fire or similar damage.
Batteries can leak. Therefore short-circuit protection should be available.
With a fast battery charger, you should make sure that it has short-circuit protection. Free access to electronic components can lead to a short circuit. For example, when water enters.
Overcharge protection should also be available. Without one, there is a risk that the batteries will be overcharged and thus become unusable.
Facts about Fast Chargers
What can I do if my fast charger stops charging fast?
If your fast charger is charging slowly or not at all, it is either defective or there is another problem. We have written you a guide that explains step by step what you can do.
- Step 1: check your power source. A socket or a multiple plug may be defective. If your fast charger is getting too little or no power, it cannot reach its full potential. So use a different socket or a different multiple plug to check whether this is the problem.
- Step 2: check your fast charger. Perhaps you accidentally bought a fast charger that does not have a fast charge function or is not compatible with your device.
- Step 3: Check your device. Maybe your device is outdated or defective? So try another charger and see if the problem persists. If so, it is very possible that your device is responsible.
If you’ve done all three of these steps and your fast charger is still charging slowly, your quick charger is probably defective. Unfortunately, you then only have two options. Either you have it repaired, although the costs are likely to be higher than the quick charger itself, or you buy a new one and dispose of the defective device.
How do I charge correctly with my fast charger?
Are you using your fast charger correctly? That can not be that hard. Oh but! A lot can go wrong when charging your device. That’s why we have three tips for you to keep in mind.
- Tip 1: pay attention to compatibility. As already mentioned, compatibility is very important so that you can charge your device safely and quickly.
- Tip 2: do not charge overnight. Your device is usually fully charged in less than 3 hours with a fast charger. So if you charge overnight, your device will hang unnecessarily on the fast charger and will lose battery power.
- Tip 3: Only use your fast charger when you have to go quickly. If you have some time, it is advisable to use a conventional charger. That already your battery.
If you follow these three tips, the battery of your end device will thank you and your fast charger will also give you pleasure for a long time.
Can my fast charger explode?
Normally, a fast charger shouldn’t explode as it is designed for higher power. Nevertheless, an explosion can occur due to production errors or external conditions such as intense heat.
So you should be aware that on very rare occasions, a fast charger can explode.
If you are concerned that your fast charger could explode, watch it and check the temperature. It is normal for a fast charger to get warm, but it shouldn’t get very hot. If this is the case, turn it off immediately and check with a professional about what to do.
Last product update on 2021-09-24 | Source: Amazon Affiliate