Comparison Black&Decker ST1823 vs Black&Decker STC1820EPC-QW

The capture width provided by the unit, in other words, the width of the strip of land cultivated in one pass. In fact, this size corresponds to the width of the working nozzle.

The large working width is useful when processing large open spaces, as it allows you to finish the job in a small number of passes. On the other hand, for hard-to-reach places, relatively narrow tools are better suited, able to go where a wider unit will not fit. In addition, the width of the tool directly affects the weight and price.

In general, it makes sense to compare in terms of working width only units of the same type (see above). However, it is worth noting here that trimmers do not differ so much from each other — most models capture from 25 to 45 cm (and a wide processing band is provided by moving the nozzle from side to side). As for the other types, in the most modest models the capture width does not exceed 40 cm, in the heaviest and most powerful it can be 56 – 60 cm or even more(in mini tractors — up to 1.5 m).

The type of handle provided in the design of the trimmer or combisystem (see "Type").

The choice for this parameter depends primarily on the personal preferences of the user, however, there are also quite objective differences between different types. The types themselves can be:

— Bicycle. A handle in the form of a pair of characteristic "horns" on either side of the trimmer bar, reminiscent, in accordance with the name, of a bicycle handlebar. This design allows you to comfortably mow the grass and perform other similar work; it is good in that the user's hands are in the most natural position when holding the tool. In addition, we note that the handles are convenient for both right-handers and left-handers. The disadvantage of models with bicycle handles is the relatively large weight and dimensions, as well as poor suitability for cutting branches and other work "at height". However, in the case of trimmers, such a need arises extremely rarely (especially since there are specialized varieties of garden tools for this — brush cutters and pole saws). Therefore, it is this option that has received the greatest popularity in modern trimmers.

— Loop -shaped. The handle, which looks like a characteristic loop, usually in the shape of the letter D. The role of the second handle in such a tool is usually played by the back of the bar, and the trimmer controls are also located there....In general, this design is considered less convenient than a bicycle one: the user has to either hold the tool with the barbell to the side, or pull one hand back strongly. On the other hand, the loop-shaped handle gives good vertical manoeuvrability and allows you to work both at ground level and much higher, and you can easily change the height of the nozzle. As a result of all this, although this option is less popular than the “bike”, it is still quite common, mainly on relatively light and low-power trimmers.

— Adjustment of the tilt of the rod. Possibility to tilt the rod or the working head relative to the rod. The setting will come in handy for mowing grass in hard-to-reach places. Trimmers with this function are much more convenient to work under swings, benches and garden furniture. Also, by adjusting the tilt of the rod, you can adjust the grip of the trimmer to the height of the user.

— Telescopic rod. Possibility of increasing the length of the trimmer by extending the rod. Due to design features, this solution is available only for models with a lower engine and helps to maximally adjust the device for a person of any height.

— Collapsible rod. Possibility to disassemble the trimmer rod into several parts. This feature greatly simplifies storage and transportation: packing, carrying and transporting side-by-side components is easier than a solid long rod. In theory, this design is less reliable than a non-removable design, but trimmers are usually not subjected to such high loads that this would be noticeable.

- Belt. The strap for carrying the trimmer is a shoulder or backpack strap. This design significantly simplifies the operator’s task and reduces operator fatigue: carrying it with a belt is not as tiring as holding the tool in your...hands. The shoulder strap is supposed to be worn over one shoulder. It helps you control the trimmer better and reduces fatigue, especially during long periods of use. A more complex backpack strap system allows you to distribute the weight of the tool on both shoulders and back. In this implementation, the belt will not slip off the shoulder when wearing the trimmer. Please note that in models without a belt, it may be possible to purchase it separately. However, it is easier (and often cheaper) to immediately buy a tool with this accessory.

— Limit bracket. The bracket acts as a limiter and is designed to protect tall (necessary) vegetation from mowing. Those. you can extend a small structural element at the base of the rod, which, when approaching the bushes, will move them away, thereby not cutting them off. The bracket will also be appropriate when mowing an area with a fence, decorative landscape with many elements that can be damaged during mowing, or can once again “shorten” the fishing line by breaking its ends.

— Rotating head. Possibility of rotating the trimmer working attachment on the rod. Typically this function is used to move the cutting system from a horizontal to a vertical position. Vertical cutting can be useful, for example, for leveling edges and creating borders in lawns.

— Edging roller. The roller is necessary for a neat “haircut” between the lawn and the sidewalk. It is found in models with a rotating head and is designed for more comfortable work. Since the device does not need to be suspended, leaning on the roller makes it much easier to edge flower beds, decorative elements on the lawn, borders, etc.

— Support rollers. Special rollers mounted on the cutting head of the trimmer. Thanks to such rollers, you can rest the head on the ground and roll the tool in front of you - this is more convenient than carrying it “on yourself”. Another advantage is that the rollers support the working attachment at the same height, which means that mowing is as accurate as possible, almost like using a regular lawn mower (with all the advantages of a trimmer). The main disadvantages of models with rollers are the high cost, as well as increased weight, which makes it difficult to work “off the ground.”

Nominal capacity of the battery, nominally installed in the unit of the corresponding design (see "Engine type").

In general, the higher this indicator, the more energy the battery can store and the longer it can power the electric motor. At the same time, we recall that the actual battery life of the lawn mower will depend not only on the characteristics of the battery, but also on the power consumption of the unit — and this, in turn, is determined by the engine power, nozzle type, operating mode, grass density, etc. In addition , capacity is usually specified in ampere-hours; and the features of these units of measurement are such that only batteries with the same nominal voltage can be compared by them (see above).

Thus, the battery capacity when choosing is more of a reference and advertising parameter than practically significant, and only models with similar performance characteristics can be compared by it. To assess the actual battery life, it is better to pay attention to the operating time directly stated in the characteristics (see below).

Time to fully (from 0 to 100%) charge the battery in the mower of the corresponding type (see "Engine type").

In general, a larger battery and takes longer to charge, but manufacturers can use various technologies that reduce charging time. So batteries of similar capacity can differ markedly in this indicator; of course, the faster option will cost more, but sometimes saving time is more important.