Review of the best cordless angle grinders for 2022 with pros and cons

Based on the opinions of experts and users in construction, we have compiled a rating of the best models of cordless angle grinders for use at home and in professional activities. The list contains popular models that are in demand and time-tested in 2018-2019. You can leave your opinion or additions at the end of the material.

No. 10 – Anchor AccuMaster AKM 1825

Price: 2600 rubles

Most of the cordless angle grinders in our top list today are made in China under the control of famous European brands, but domestic companies are also capable of creating fairly high-quality tools, which confirms the presence of Enkor AccuMaster AKM 1825 in our rating. The device has fairly simple functionality and a simple design, but in terms of performance it is in no way inferior to much more expensive competitors. The quality of cuts and grinding is quite satisfactory.

Despite the lack of complex innovative solutions, this angle grinder is not without the necessary overload protection. A number of problems are caused by the very controversial design of the rotary battery - the contacts overheat quite quickly and begin to respond with a delay. Of course, today there are a large number of power tools that are more convenient to use, but if your priority is performance and an affordable price, this is a great option.

Makita DGA504Z, 18 V, 125 mm

Safety precautions

Reasons for the danger posed by the grinder:

The presence of an open section of a circle that rotates at high speed.
The causticity of abrasive discs.
Lack of a stable point of support.

Rules of circulation

Developing skills in handling the unit, mastering the principle of uniform load distribution and avoiding dangerous operations.
Monitoring the condition of the working disk for chips or breaks.
Using separate circles for each type of operation according to its intended purpose.
Maintain attentiveness, calmness and caution. Pay special attention to the presence of hidden obstacles, clamps between supports, and when cutting under the weight of the structure or in suspension.
Constant monitoring during tool operation:

before starting, to prevent jerking, the wheel should not come into contact with foreign objects; it should not start before being included in the cut;
the tool must be turned off after performing any operation, preventing idling when changing position, walking or communicating with friends;
After grinding or cutting, the disk stops on wood; placing the tool with a rotating wheel is not allowed.

Mandatory: Use of personal protective equipment.

Happy shopping and stay healthy!

No. 9 – Ryobi One+ R18AG-0

Price: 3400 rubles

Inexpensive and accessible to the general public, the Riobi grinder is excellent at grinding and cutting metal or stone. The attachments can be changed almost instantly due to the convenient spindle lock, and the Softgroup rubber coating makes the operator’s work comfortable. The device is capable of running on both Li-Ion batteries and their Ni-Cd counterparts.

The battery charge is controlled using an intelligent system that ensures both batteries are fully charged, which in turn ensures maximum longevity and productivity. The disc diameter is only 115 mm, but for many this will even be a plus. In general, it’s a completely ordinary budget angle grinder with a battery, which we liked due to its balanced characteristics and reasonable cost.

RYOBI R18AG-0, 18 V, 115 mm, RYOBI ONE+ 18V

Types of equipment for angle grinders

The correct choice of working equipment for an angle grinder is of key importance for productivity, convenience and safety of work. Wheels for angle grinders are:

cutting and grinding abrasive wheels (cutting materials, rough cleaning them and stripping old coatings and rust);
grinding disc wheels (grinding on a wide range of workpieces, parts and structures made of various materials);
cup grinding wheels made of hard metals (for removing old coatings and layers on small surfaces, as well as fitting rocky materials);
sanding belts (paper sanding cloths) attached to a rubber blank (sanding and grouting of workpieces made from most materials);
diamond cutting wheels (cutting concrete and reinforced concrete, stone, brick, asphalt, etc.).

No. 8 – Bosch PSM 10.8 Li

Price: 4300 rubles

If the best cordless angle grinder had to be chosen based on its popularity among domestic buyers, then this model would top the list. The reasons are clear - a modest price and a renowned manufacturer, but there are also quite objective technical advantages - 22,000 rpm, weight less than a kilogram, and most importantly a good and quickly charging battery.

It’s unlikely that this device can be called high-performance, so professionals won’t choose it, but for occasional work at home or in the garage, this device is excellent. The model was made in Hungary, which seems preferable to traditional China, so you don’t have to worry about the durability of the device.

BOSCH GWS 12V-76 0 box, 12 V, 76 mm

If you have doubts about choosing an angle grinder, you can read our article How to choose an angle grinder for your home.

Where can I buy

Popular cordless models are purchased in the power tool departments of hardware stores or supermarkets. In addition, new items can be easily ordered online from an online store or from Ali Express, China's largest online service for purchasing and delivering goods.

The best information on angle grinders is provided by the Internet aggregator Yandex.Market, on the pages of which the main characteristics and photos are demonstrated, customer reviews, tips and recommendations - which company is better, how much it costs, and you can also follow a direct link to the store to choose budget ones models for purchase.

No. 7 – Hitachi G14DSL

Price: 5200 rubles

An excellent power tool from Hitachi, with which you can cut or grind metal away from the electrical network. The model boasts extremely fast battery charging - only 45 minutes, as well as fairly compact dimensions - the length of the device does not exceed 30 centimeters, which is incredibly convenient in limited space.

The equipment of the device can hardly be called rich, but everything you need is in place - two 3Ah batteries, a charger, a key, a second handle and the grinding disc itself. The lack of keyless replacement of the attachment is unlikely to please professionals who have to quickly perform a large volume of varied work, but for household needs such a cordless angle grinder is perfect.

Hitachi G14DSL

Purpose

A cordless grinder (angle grinder, angle grinder) is a self-contained hand-held power tool equipped with a grinding or cutting disc and powered by a rechargeable battery.

Originally used for processing flat joints. However, with the development of construction technologies, the scope of application has expanded significantly.

Where is it used?

An angle grinder with a battery will be needed in the field if it is not possible to connect to the electrical network to perform the following actions:

grinding, polishing or cutting metal products - reinforcement, beams, angles, pipes, channels;

cleaning old paint or corrosion;

cutting brick or ceramic tiles, as well as cutting grooves in walls;

brushing wood to give it an aged look;

manufacturing of cutting machines, chain sharpening machines.

Each type of material requires its own special disk:

grinding for metal up to six millimeters;

flap grinder;

cutting for metal up to two millimeters;

cutting for ceramics or concrete with a diamond edge;

It is not recommended to use an angle grinder for cutting wood or glass; we have our own tools for these purposes!

Advantages

The popularity of the models is due to a number of advantages:

Mobility – autonomous use of the tool without connecting to the mains.
Small weight and size values with a product weight of no more than four to five kilograms.
Reduced noise compared to network products.
Ease of use without a power cord that limits maneuverability.
Low power with comfortable grip and complex cuts.
Easy to use.

Flaws

High cost due to battery equipment. The larger the battery capacity, the longer the unit operates, but at a more expensive price.
Low power depending on battery capacity.
Short battery life without recharging.
Small selection of models.

Depending on the nature of the actions performed, the average duration of operation of a cordless angle grinder is 20-30 minutes. The battery capacity is enough for grinding for 40 minutes, and for sawing concrete – 20 minutes.

No. 6 – Makita DGA504Z

Price: 8900 rubles

One of the simple cordless grinders from Makita, which does an excellent job of cutting and grinding metal on a household scale. Operator comfort is ensured by an extremely comfortable grip and excellent housing design, and the casing will protect it from sparks and dust. The weight is quite significant - 2.5 kg, so for long-term work you need to have good physical fitness, but those who are looking for a productive grinder at an adequate price will not find this a problem.

Makita DGA504Z

No. 5 – Bosch GWS 18-125 V-Li

Price: 12,600 rubles

Bosch cordless angle grinders have both a number of devoted fans who claim that the high quality of such devices is unattainable by other manufacturers, and skeptics who believe that for a comparable price you can find a much better device. Both points of view have the right to life, but it is simply stupid to deny the phenomenal technical component - 10,000 rpm, sophisticated Electronic Cell Protection and Electronic Motor Protection protection systems, as well as many other bonuses.

The battery discharges quite quickly, partly due to its rapid heating, but when performing work with breaks provided for the device to rest, you are unlikely to encounter problems with overheating and overloads. The start button can be locked in the on position, which means there is no need to press it. The batteries can be charged from any other 18-volt chargers, which will also save some money. In terms of price/quality ratio, this device is one of the best devices in our review today.

Bosch GWS 18-125 V-Li

No. 4 – AEG BEWS 18-125X Li

Price: 18,200 rubles

A short angle grinder from AEG, ideal for working in hard-to-reach places - its maneuverability will be the envy of any representative of our rating. A rather large, but very ergonomic anti-vibration handle and an easily accessible lock release button make this device one of the favorites in terms of operating comfort. Both batteries have indicators of the remaining charge - they will not go into deep discharge.

Operator safety is the main task that the designers of this angle grinder solved, and therefore every element of the device is thought out to the smallest detail. The only weak point is that the overload indicator is not very well located; it is not always possible to notice the excess in a timely manner and reduce the speed before the device turns off on its own.

We have also prepared for you a rating of grinders with an electrical connection.

AEG BEWS 18-125X Li

No. 3 – Makita DGA504 RME

Price: 21,200 rubles

The top best battery-powered angle grinders cannot do without equipment from the Japanese manufacturer Makita, famous for its incredible quality and huge production resource. The battery of this model charges in just 45 minutes, but these figures were not obtained through a compromise reduction in its capacity, but thanks to thoughtful design solutions.

Makita cordless angle grinders are famous for their amazing engines and this model is no exception - the brushless motor is equipped with excellent overload protection and is extremely difficult to damage. But the charge indicators let us down - sometimes they display a full charge, although in fact there is no more than half left. Otherwise, this angle grinder can compete in performance and operator comfort with devices that cost 5,000 - 10,000 rubles more, and therefore there are practically no equals to it in the middle price segment.

Makita DGA504 RME

Job

The cordless angle grinder is powered by an electric motor, activated by a switch or a locking button. When untwisting, the motor shaft transmits rotational force to the spindle through a gearbox with drive and driven gears with spur or helical gearing.

In order to prevent kickback, complex and expensive models are equipped with a split coupling between the gearbox and the motor to protect against jamming.

No. 2 – DeWALT DCG 412 M2

Price: 25,800 rubles

Price: 26,900 rubles

Professional angle grinder from Metabo, powered by batteries with high-current LiHD technology and electronic overload protection. The battery of the device has the best capacity of those presented in our rating, which means that the maximum amount of work can be done with the help of this grinder. In practice, the device is able to work even with less capacious batteries than those that come with it.

It is worth noting the ease of operation - even a person far from technical knowledge can remove and install the filters, and for an angle grinder this is an important criterion, because dust and gases settling on the walls of the device can significantly reduce the efficiency of its operation. The battery can be rotated up to 270 degrees, which is important when working in cramped conditions. In general, in terms of power, safety and reliability, this cordless angle grinder looks like the optimal solution, unless, of course, the budget issue is acute.

Metabo WB 18 LTX BL 125 Quick

Criteria for choosing a battery-powered grinder

When choosing a cordless angle grinder, you should pay attention to the following parameters.

Power. On sale you can find models with power from 0.5 to 6.5 kW. The choice depends on the work for which the angle grinder will be used. If you cut thin metal, metal sheet, plastic, etc., then a 1 kW model will be enough. More powerful grinders will be required for grinding and deep cutting (often used when working with wood).
Weight. The heavier the unit, the more difficult it will be to operate. Although if you need a powerful angle grinder, then you will have to put up with the weight and large dimensions.
Ergonomics and safety. It is better to choose models equipped with a protective casing and handle to make work convenient and safe. Almost all models have a button that prevents spontaneous starting. But the rotation speed can not be set everywhere. Please note this if you require this option.
Ultimate voltage.
Battery characteristics. The main ones are capacity and stored energy. Most models on the market have a capacity of 1.3─6.2 Ah. Although these numbers won’t tell you much to an inexperienced buyer. It is better to pay attention to the amount of work that a particular battery can do. In particular, many sellers indicate the number of cuts per battery charge. The battery type of portable angle grinders is most often lithium-ion (Li-Ion). You can rarely find nickel-cadmium batteries (Ni-Cd). It is better to choose Li─Ion.
Fluctuations in spindle speed. This parameter affects the performance and consumption of grinder wheels. The lower the rotation speed, the lower the productivity and the higher the wheel wear.

The noise level of cordless angle grinders is lower than that of corded models. Between portable models of angle grinders from different manufacturers, the difference in noise level is almost unnoticeable. There is also such an indicator as the speed of engine shutdown in case of malfunction. This parameter differs slightly for different models. It’s also worth saying a few words about batteries for grinders. Lithium-ion batteries are sensitive to cold and in the cold they lose a lot of capacity, which means the operating life of the angle grinder is reduced.

It is also worth adding that you should not count on long-term operation from the battery. During intensive work (for example, grinding), the device will exhaust its charge in about 8-10 minutes. Therefore, if the work being carried out requires a significant load, it is better to use models with mains power. In the table below you can see the average number of cuts depending on the battery capacity.

Battery capacity, Ah	Average number of cuts
3	50-64
4	60-72
5	70-89
5.5	85-95

The positive thing is that many manufacturers produce batteries that are compatible with various tools of their production. That is, the battery from the grinder can be used on a portable hammer drill or drill, and vice versa. Naturally, the voltage and current consumption of these tools must match.

By the way, the voltage of portable angle grinders offered in stores may be as follows.

10.8 V.
14.4 V.
18 V.
24 V.
36 V.
54 V.

The most common are 18 volt models, with a power of about 1.5 kW and a circle diameter of 125 mm. Based on their design, portable angle grinders on sale can be divided into two groups.

With 4-pole brushed motor.
With brushless motor.

Brushless models have higher operating efficiency compared to commutator models. Angler grinders are sometimes divided into household and professional models. Although this division is very arbitrary. Now, let's look at the main pros and cons of cordless angle grinders.