What are batteries 1
The right battery for every purpose
Which battery fits which device? Why are there different sizes and names? Why hold Batteries same size but different lengths? And what is actually the difference between batteries and Batteries? We answer you in our counselor these questions and give an overview of batteries and their purposes.
1. Common types of batteries and their properties
Batteries, or more precisely Primary cells, differ not only in size and construction, they also have different materials for their composition and thus different nominal voltages and capacities. Most famous guys have one tension of 1.5 V per cell. However, some are made up of several cells and come up in this way, for example 9 V. The capacity of batteries is in Amp-hours (Ah) measured and indicates how long it takes for these to discharge again.
Once discharged, batteries can no longer be used and must be specially provided for this purpose Receptacles returned and disposed of in an environmentally friendly manner. So you must never just put batteries in the Household garbage give, but can either return them in stores or at the manufacturer. According to the Battery Act, they are obliged to take back and recycle old batteries. Alternatively, you can also hand in your old batteries at municipal collection points such as recycling or waste disposal centers. You can find more information on this at www.grs-batterien.de.
Common ones Device battery types and their properties
Zinc-carbon batteries (Abbreviation: ZnC or CZn)
- Composition: charcoal pencil, zinc cup and manganese dioxide with ammonia or zinc chloride electrolyte
- Advantages and disadvantages: cheap production and prices, but limited capacity and performance
- Examples of use: alarm clock, remote control, kitchen clock, pocket calculator
- Common sizes: AA, AAA, C, D, 9V - we explain the size designations in the next section
Alkaline batteries (Abbreviation: AlMn)
- Most strongly represented battery type on the market with around 66%
- Composition: Manganese dioxide-zinc element with alkaline electrolyte
- Advantages and disadvantages: Much higher performance and capacity than zinc-carbon batteries, high leakage protection, good shelf life, but a bit more expensive
- Very wide range of applications: MP3 players, flashlights, smoke detectors, blood pressure monitors, scales, electric toys, etc.
- Common sizes: AA, AAA, C, D, 9V but also special cells in cylinder or button shape
Silver oxide batteries (Abbreviation: AgO)
- Composition similar to alkaline batteries, instead of manganese dioxide, silver oxide is used as the cathode material, the anode consists of zinc powder
- Advantages and disadvantages: high energy content and high load capacity in the smallest of spaces, long service life, but expensive due to high manufacturing and raw material costs
- Areas of application: wristwatches, medical devices
- Common sizes: button cells only
Lithium batteries(Abbreviation: LiMnO2, LiFeS2, LiSOCl2)
- Composition: lithium and manganese dioxide, iron disulfide or thionyl chloride
- Advantages and disadvantages: low self-discharge, high voltage, high energy density, flat discharge curve, easy to store, widely usable temperature range, but comparatively expensive due to the high manufacturing costs
- Areas of application: digital cameras, smart cards, security, alarm or location systems and devices with long-term use
- Common sizes: AA, AAA, 9V, button cells and photo batteries
Zinc-air batteries (Abbreviation: ZNO2)
- Composition: zinc and air
- Very high energy density, as the oxygen in the air serves as the cathode
- Areas of application: due to their uniform discharge, they are particularly suitable for use in hearing aids
- Common sizes: 10 (yellow), 13 (orange), 312 (brown) and 675 (blue)
2. Battery sizes and application examples
Combinations of letters and numbers, such as AA, D or 9V on the Battery cases indicate their size or type via the coding of the ANSI (American National Standards Institute). There are also the names such as Mignon, Micro or Baby cell. Devices that are operated with batteries or button cells have corresponding battery compartments so that they can hold exactly the required battery size. Often the correct size and orientation is also indicated in these via imprint, sticker or embossing.
In the following table you will find an overview of the most important Battery types and their properties and areas of application.
|Battery format||diameter||Dimensions||Electrochemical Systems||nominal voltage||capacity||Areas of application|
|AAA batteries||Micro batteries||9.5 to 10.5 mm||43.3 to 44.5 mm||Zinc-carbon and alkali-manganese||1.5V||max. 1450 mAh||Radios, clocks, remote controls, small flashlights, computer accessories, wireless mice, MP3 players|
|AA batteries||AA batteries||13.5 to 14.5 mm||49.2 to 50.5 mm||Zinc-carbon and alkali-manganese||1.5V||800 to 3,000 mAh||compact radios, cameras, remote controls, wall clocks, alarm clocks|
|C batteries||Baby batteries||27 mm||50 mm||Zinc-carbon and alkali-manganese||1.5V||max. 8000 mAh (alkali-manganese) max. 4000 mAh (zinc-carbon)||larger clocks (wall clocks), flashlights, radios|
|D batteries||Mono batteries||32.3 to 34.2 mm||59.5 to 61.5 mm||Zinc-carbon and alkali-manganese||1.5V||6000 to 18000 mAh||large flashlights, toys and associated remote controls, large transistor radios, portable CD players, radio recorders|
|9V block batteries (6 round cells)||9 volt block, 9 V battery, E block||–||48.5mm x 26.2mm x 17mm||Zinc-carbon and alkali-manganese, lithium||1.5 V per round cell, 9 V in total||max. 600 mAh||Toys, measuring devices, transistor radios, smoke detectors, remote controls with extensive microelectronics|
Specialty cells, also known as Button cells, are small, round and flat electrochemical cells that are primarily used in small electrical appliances. They come in many sizes and electrochemical systems - but are the most common Silver oxide zinc of type SR and Alkali manganese from Type LR. The best-known types are also CR2032, CR2025, A76, A23, E90, 377 and CR2. Depending on their size, their capacity is between 14 and 145 mAh. The cells are used in particular in Wristwatches, Hearing aids, Calculators and toys.
3. Difference between battery and accumulator
Batteries (Primary cells) and Batteries (Accumulators / secondary cells) differ in particular in that batteries can only be used once, whereas accumulators can be charged. Accumulators convert chemical energy into electrical energy and are thus comparable in effect, but the process can be carried out by charging in an external charger or, as is the case with cell phones, laptops or cameras, they can often be reversed in an integrated charging unit by connecting to a power source. The battery can be used several times, which is much easier, more convenient and cheaper, especially for devices that are used every day. Over time, however, batteries also get weaker - especially if they are often only partially discharged. Then these too, like batteries, have to be disposed of and replaced.
Regardless of whether it is a battery or a rechargeable battery - in your OBI store you will find the right size and strength for every device to get the device you want to work.
Battery operated tools
OBI GmbH & Co. Deutschland KG excludes any liability in the event of improper and professional assembly in accordance with the instructions and in the event of incorrect use of the article. This does not restrict your statutory rights. Pay attention to the observance of personal safety during the implementation, wear appropriate protective equipment if necessary. Electrical work may only be carried out by qualified electricians (DIN VDE 1000-10). When assembling the articles, the work must be carried out in accordance with BGV A3. Do not do this unless you are familiar with the rules that apply to you. We strive for the greatest accuracy in all details.
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