AA batteries and other power supplies for digital technology
AA batteries and other power supplies for digital technology
Anonim

Most digital devices today are powered by batteries. This is what makes them mobile and convenient. Photo and video equipment is no exception. Disposable batteries (primary chemical sources), despite their availability and low cost, are inferior in operation to batteries (secondary chemical sources) that can withstand many recharge cycles. To choose the right power source for your equipment, you need to know a few basic things about them.

Types of batteries

1. Special batteries

aa batteries

Batteries can be built-in, that is, the manufacturer makes a battery that fits, for example, one model range only of its brand. Here lies the main disadvantage. Due to the uniqueness of such batteries, they can only be found in specialized stores, the price for them is quite high, and for long walks it is still better to have a spare power source. In addition, many brands make their models notunder standard AA batteries, so the user does not have to choose much. And the definition of parameters such as capacitance or voltage is also not required. Everything is balanced by the long service life of such batteries, you will not remember this problem for a couple of years.

2. Finger batteries (AA, AAA)

AA batteries for cameras

Another type of batteries, as already mentioned, are AA batteries. The most commonly used sizes are AA and AAA. Such batteries are used in inexpensive technology and in SLR cameras (but very rarely). In professional models, "fingers" are used in conjunction with a mini-transformer - a booster - it stabilizes the voltage and energy supply. Batteries (AA, AAA) have a significant difference - capacity and output voltage.

Capacity - a value that determines the service life of the source - the charge that this source can give. This affects the operating time of photo and video cameras. The most used elements in photographic equipment have a capacity of 1500-3200 mAh.

The output voltage ensures that your device turns on, and if its value is low, then such a battery is not suitable for you, you need to choose a more powerful one. Otherwise, the camera or camera simply will not turn on.

You can only determine the quality of a battery on the market or in a store using a tester, the marking on the product does not always correspond to reality. So do not save money, it is better to choose AA batteries for cameras from well-known manufacturers.

3. Chemicalcomposition

aa batteries

Batteries also differ in chemical composition. The cheapest are alkaline elements, but they have such a disadvantage as the memory effect. This means that the battery needs maximum discharge before charging, otherwise constant recharging will significantly reduce its service life. Such elements in expensive brands are practically no longer used, they remained only as AA batteries. In addition, such cells place demands on chargers that must have a full discharge function.

The most popular today, despite their cost, lithium batteries: Li-Ion and Li-Pol. They do not have a memory effect, they are relatively light weight. Most importantly - a high rate of production - more than 1000 discharge / charge cycles. But they should not be allowed to fully discharge (as in alkaline).

If the shape of the battery compartment allows and there are no contraindications in the instructions, alkaline batteries (AA, AAA) can be replaced with suitable lithium ones. The choice of a particular device depends on your preferences and the conditions in which the equipment will be operated, and, of course, on your budget.

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