There are two types of chargers: universal , which can be used with various laptops, and original, designed for a specific PC model. The latter option will cost more, while the universal power supply for a laptop is characterized by an extensive set of functions. Before choosing a product, it is necessary to take into account not only its type, but also certain characteristics that determine the purpose and ease of use.
The universal unit allows you to charge devices of various types, so it gained particular popularity. It is indispensable not only in the office and at home, but also on vacation, when you have to be limited to a minimum of things. A universal universal power supply for a laptop will be useful even if the original charge is lost, especially considering its reasonable cost.
Voltage and power
Most devices have a wide voltage range and support a frequency of 50/60 Hz. They provide charging gadgets in all conditions, even from a portable generator. There is also an addition in the form of plugs suitable for various outlets, in particular for Asian, American and European.
Classic versions have a standard output voltage of 19 watts. And if earlier it was an accepted standard for any laptop, today there is a need for a different voltage value. This is due to the development of this industry and the advent of gaming devices and netbooks that require 24 or 15 watts to charge. The functionality of the unit directly depends on the number of supported voltages.
Universal laptop power supply: features
There are models with the function of automatic detection of voltage depending on the power connector of the gadget. This greatly simplifies the use, but there is no possibility of charging devices in case of mismatch of the voltage of the standard supply plug.
The USB port is a very convenient addition, it will allow you to charge phones and players of various manufacturers. It is also possible to equip multiple power connectors.
Power may be different. This option is selected depending on the existing laptop. For most modern devices, 60 watts is enough. When using gaming gadgets and professional monitors, you should pay attention to the power supply for a laptop universal with a power of 90 watts. Charges, whose power is 120 watts, allow you to work with any professional device.
The LCD screen is designed to indicate the voltage present at the output and reduce the likelihood of damage to the equipment. This is especially important when supporting a wide voltage spectrum. At the same time, if the unit is purchased for a laptop to replace a broken or lost charge, there is no need for such an addition.
The cost of compact models significantly exceeds the price of standard products. For the manufacture of the housing, special plastic is used, which is not subject to burning and differs in antistatic properties. Thus, you can not worry about the safety of operation.
What you need to know
A universal laptop power supply may be required in various situations. At the same time, you should be careful when choosing and starting from not only the presence of a large number of connectors. The need for mobility and purpose of use must be considered. In the event of a device breakdown, first you need to find out the source of the problem. Next, you need to disassemble the housing and check the connections. The most common problem is the wire that connects the laptop and the unit. This problem is solved by replacing the connector.
Conclusion
There are models created for travel and practically do not occupy a place in the luggage. Also on the modern market you can find universal products with a large number of additional functions that are optimally suited for home use and provide charging and power for all available equipment. Particular attention must be paid to the materials from which the power supply for the universal laptop is made, and if possible check before purchasing. A high-quality device practically does not heat up during use and works completely silently.
If you follow the rules of choice, even without specific knowledge, you can find the best option with the right price, which will last a long time. It is worth noting that the technique can be equipped with a recognition system that blocks third-party devices, including a universal power supply for a laptop. Repairing the charger or purchasing an original product will solve the problem if the old device fails.