Almost in any house there is a device that does not work from the network, but from the batteries. It can be a camera , a remote control , a flashlight or your child's favorite toy. Conventional batteries have a disposable life. This means that after exhausting the capacity they will have to be thrown out. In view of this, many prefer to use batteries that can be recharged as needed and applied again. Therefore, a mandatory accessory in your home will be a battery charger.
How does the charger work?
The charger, or memory, is a compact device. From an external source (usually a home network), it converts the alternating current and charges the batteries with energy. In the plastic case of the memory is located a small number of parts that perform the task: voltage converter (power supply or transformer), rectifier and stabilizer. Thanks to them, the energy from the source (home network) is converted into a current with a suitable voltage reading and goes to the batteries to restore their capacity.
What are battery chargers?
In general, for the battery chargers offered on the market is characterized by small size. The compact device has a plastic casing, on the front part of which are slot-slots, where the batteries for recharging are inserted. Moreover, in this case, nobody canceled the rules for determining the polarity. This means that on the side "-" insert the battery flat side, on the side "+" - convex. Connecting to the network from the charger is possible in various ways. Many memory devices are equipped with a cable with a plug. There are models, in which the plug is mounted in the housing, that is, the cable is not necessary.
In addition, manufacturers offer chargers for various types of batteries. If you use so-called finger batteries, then the AA battery charger is suitable for you. By the way, many models of memory for AA are suitable and as a charger for little stickies. In their slots there are depressions for recharging batteries of this format. The number of slots in the memory can be different. Most often this is a pair number - two, four, eight.
Manufacturers offer advanced intelligent chargers. They are equipped with a display and control unit that allows you to choose the current for charging - safe 200 mA or fast 700 mA. Often, intelligent storage devices provide the function of discharging newly purchased batteries. Moreover, such models are equipped with a timer that turns off the device as soon as the battery has been fully charged. This allows you to save the battery for which the recharging is fraught with failure.
Universal chargers will restore the capacity of various types of batteries - AA, AAA, 9B, C, D.
Which battery charger to choose?
When choosing memory for batteries, we recommend that you follow simple rules:
- The charger must match the size of the batteries that you are about to charge. Universal models are a wonderful thing, but they are much more expensive.
- Choose chargers with a shutdown function when fully charged, which will preserve the "life" of the battery.
- If you want charging to happen faster, choose more powerful options, for example, 525 mA or 1050 mA.
Today, the market has a wide segment of battery chargers. Chinese models are cheap, but, unfortunately, do not last long. "Serednyachki" (Duracell, Varta, Energizer, Camelion) will cost more, but they perform high-quality charging. If you are looking not just good, but the best battery charger, then pay attention to the products from Sanyo, Panasonic, Rolsen, La Crosse.