We tell about the types, the main characteristics of the AKB and give advice on the choice.
Today, most of the types of power tools are partially or completely switched to rechargeable food. Screwdrivers, drills, jigsaws, electrons - in each category Battery tools are presented. Let's gradually begin to compete and with engineering with DVS - I already sell battery trimmers and lawn mowers, and even rechargeable snow blowers. Battery submersible blendes, mixers and vacuum cleaners appear in everyday life. First of all, the batteries are equipped with tools and techniques, which are supposed to be regularly used away from network sources - on a villa building or somewhere in the garden.
Characteristics of AKB
Many manufacturers emphasize the type of cells of their batteries - lithium-ionic, but today this type of battery received almost widespread due to their advantages. There are also models of power tools with nickel-cadmium or nickel-metal hydride cells of AKB. Another thing is that entitled "Lithiumon" is hidden several technologies. For example, those who appeared one of the first lithium-cobalt batteries are distinguished by high energy intensity, but have not a very long service life. Lithium-iron-phosphate - resistant to reload and generally to unfavorable operating conditions. Lithium-nickel-marganese-cobalt-oxide - differ in high energy intensity.
The specific type of technology is not always indicated on batteries to household devices, so you have to study and take into account the characteristics of batteries.
Battery chain saw GreenWorks G-MAX 40V Digipro series with brushless motor, power 40 V.
Bosch iXO compact rehabative screwdriver is equipped with a charger with a Micro-USB port.
Energy intensity
One of the most important characteristics showing how much electricity per unit weight can carry the battery. The energy intensity can be roughly determined by the type of cells of the batteries. In modern types of lithium-ion batteries, the energy consumption reaches 150-200 W • h / kg. An indicator of 100-150 W • h / kg in this category is considered very good. For comparison: the energy intensity of nickel-cadmium acb was about 40-70 W • h / kg, nickel-metal hydride - 70-100 W • h / kg.Tokotdach
Characteristic showing the amount of energy that is able to give the battery (without damage). Thus, power tools or children's radio-controlled machines require enough intensive current currents from the battery, and, let's say, mobile phones are needed less than less. Clacotdach is indicated on the battery in the form of a digital coefficient with the Latin letter C: 4C, 20C, 45C. The larger the coefficient, the higher the current turn.
Rechargeable string trimmer with upper engine location. Model GreenWorks G-Max Digipro 40 V. Equipped with 40 V, 2 AH batteries or 4 AH.
Rechargeable tools: disk saw, jigsaw.
Screwdriver-screwdriver.
Voltage
The voltage and capacity of batteries are indicated for all AKB models; The voltage is measured in volts (B), and the capacity is in amps-hours (and h). Without going into explanations, what is voltage, we note that the cumulative work that the battery can perform is determined by the product of voltage values for the container. Usually, the battery is used with a voltage of less than 18 V, for a professional tool - 18 V, and for garden equipment that requires greater power - with voltage from the base 36 V and to professional 82 V.
GreenWorks trimmer
Types of Account
Nickel Cadmium
They differ in the average energy intensity, high specific power and are generally considered very unpretentious in operation. The main drawback is the high toxicity of cadmium, which is why this type of acb is even prohibited in some countries. Therefore, you should contact the Nickel-Cadmium Akb gently and not give them to children.Nickel-metal hydride
Malotoxic, according to its characteristics, occupy an intermediate position between nickel-cadmium and lithium-ionic. In particular, their energy intensity is 30% higher than that of nickel-cadmium. But they have fewer recharge cycles (about 700), they discharge faster, and their charge has the longest.
Lithiumon
The last modifications are distinguished by high energy intensity and specific power, they withstand a significant amount of recharging (up to 1,500), and recharge can be performed at any time, regardless of the degree of discharge. In general, today they are the most common type of battery.Basic battery blocks
These include enclosures, control boards and rechargeable cells. And each of these blocks can significantly affect the efficiency of the device as a whole. The buyer can see and appreciate the battery of the battery. For example, the physical strength of the battery depends on the body, as well as largely the temperature mode of operation, whether the device will overheat or, on the contrary, to freeze.
Chain saw Bosch. Chain saws began to be equipped with batteries relatively recently.
AKB service life
The battery life depends on many factors, and the type of cells is not even the most important. The amount of recharging is determined by the electronic control board responsible for charging and protect the battery (battery charge controller), it is built into the battery or the electrical appliance itself. The control board should turn off the device in time during overloads and not to use discharged cells. It also determines the efficiency of the use of cells: whether they are turned on at the same time or some blocks, whether the potential from the cells will be larger than their nominal value, etc.
Do not attempt to charge the battery with one type of cells (for example, lithium-ion) on chargers intended for a bunch of another type.
If, let's say, the same lithium-ion battery withstands an average of 1,000 recharges, then equipped with a good electronic control board and working without overload, it is able to withstand 1,500-2,000 recharges without a significant reduction in its technical characteristics.
Rechargeable vacuum cleaners. Model DYSON CYCLONE V10 with ultra-speed (125 thousand rpm) engine.
Compact electronics Bosch GSA.
Model of the vacuum cleaner Bosch BCH 7 ATH 32 K.
Chargers contributes their contributing. Batteries should be charged only on their "native" charging stations. It is not recommended to use universal charging devices. The battery charge is not determining the quality criterion of the charger (although the devices that charge quickly have a more complex structure: cooling system, additional electronics, etc.).
Bosch BCH 6ATH25 vacuum cleaner
It is not necessary to choose models of power tools or household appliances with super-fast charging of their battery (several dozen minutes) - unless, of course, this is not determined by the nature of the work. In any case, slow charging (2-4 h) and a pair of additional replaceable batteries provide a more comfortable operation mode for AKB and increase their service life.Store batteries in a partially charged (30-50%) condition, lithium-ionic - at room temperature, and nickel-metal hydride - at a temperature of slightly above zero (for example, in the refrigerator).
Rechargeable Tools Tips
Do you buy one tool or whole kit? In the latter case, pay attention to the tool series to which you can install the same type replaceable batteries. Such a series has Bosch (green and blue power tools), Metabo, GreenWorks and in a number of other manufacturers. Especially impressively looks like a Ryobi One + Ryobi line: it includes more than 40 items. Summary batteries are convenient or not? For example, Dyson refused to use replaceable batteries, as, in their opinion, they weaken the design. But perhaps you will really be easier and more convenient to work with household appliances with built-in batteries.
GreenWorks technique: 80V self-propelled lawn mower.
80V Range Blow Blows.
Battery and Charger G-MAX 40V.
With long-term operation, the batteries will be age, their capacity decreases, sometimes to such a level that the tool is noticeably losing in performance. Find out in advance whether similar batteries are sold separately to buy them later.
Charger GreenWorks.
Consider the features of the type of cells during operation. So, nickel-cadmium batteries have a memory effect. If you start producing them to charge when it is not completely discharged, the battery capacity may decrease. Lithium-ion acb can be charged with any degree of their discharge.
Dmitry ITSKO, Commercial Director of Greenworkstuls:
At the moment, there is a minimum of six different generations of lithium-ion batteries for power devices, each of which has its own characteristics. If we talk about the most effective technology, it is lithium-nickel-cobalt-aluminum (NCA) battery cells (200 W • h / kg), which at relatively small price give the greatest efficiency and capacity per unit weight. And so that lithium-ion batteries serve for a long time, you need to follow the rules of operation. First, the batteries are desirable to keep charged and not to give them discharge completely. If you charge the battery not after discharge up to 0-3%, but, say, when 30% of the charge remains on it, you can extend the service life of its service almost 2 times. Secondly, avoid sudden temperature drops when stored. If the battery freezes, it heats up - this strongly affects its service life and capacity. It is best to keep it in a warm room. Of course, you can use them at a minus temperature, but then leaving it in a cold utility room is undesirable. Finally, it is better not to expose batteries with serious loads at extreme temperatures, if this is not a professional technique. In addition, the batteries must be equipped with fuses so that they can turn off when overheating and did not begin to charge if too frozen.
