Today, the vast majority of devices runs on rechargeable batteries, which gradually replaced a battery disposable. After all, with proper maintenance of the batteries of a camera may work the entire day, and even more, while the validity of the disposable AA batteries is often limited to two or three hours of intensive use.How to effectively use the battery and not to limit the ability of the user? First of all, you need to make sure that the type of battery suitable for use. Then consult the manual and find the paragraph that describes the rules of charging batteries for a specific camera, camera, power tools, etc. Usually the manufacturer specifies in sufficient detail the required number of hours for the first charge cycle. This information is very important, you should pay attention to it.It should be noted that the charging process is key for safety and for efficient work time of device battery. The number of hours required for the first charge may vary depending on the battery capacity and its design, but the average manufacturer specifies 12-14 hours. This means that the user must charge the batteries continuously for a specified period of time. If the unit is new, recently purchased and unpacked, the first thing to do to defuse it, better in a natural way, that is, to enable the device and allow it to run as long as the battery will not sit down. In some high-tech devices is also a function of the forced discharge in order to restore the original capacity of the battery under a heavy load. You must also be aware of the dangers of overcharging. This is especially true if the process is using old equipment without automatic disconnection triggered by reaching 100% charge level.When charging the battery is not to exceed the amperage, as this can put an end not only to the batteries but the entire device as a whole, if the charging process takes place inside the battery compartment. Many battery makers provide their products with a solid defense, but against the scrap, as they say, there is no reception. So the violation of charge you may get is a puddle of battery electrolyte and unpleasant smell together with sintered contacts of the charger.