External laptop batteries are significantly different from those used for recharging phones. First of all, to restore the capacity of laptop batteries requires more electricity, but when selecting a new device, you should pay attention to other distinctive qualities of this type of device.
The main parameters of power bank for laptops
Power banks for laptops are selected by capacity, current, voltage, weight and dimensions. Also important features of the products may be the appearance and name of the manufacturer.
Compatible with your laptop
In order not to be disappointed in the purchase, it is necessary to determine in advance the possibility of using a laptop with a certain type of Power Bank. Some laptops are protected at the program level from being connected to chargers not recommended by the manufacturer.
Dell laptops are especially famous for this feature, therefore it is recommended to check the compatibility of devices on the website of the electronics manufacturer before buying an external battery.
Capacity
If there are no problems with the compatibility of the laptop and portable battery, then the second most important parameter of the bank will be the capacity.
It will be possible to power up and completely restore the laptop battery if an external battery with a value of at least 20,000 mAh is used. Such a device can be used to fully charge the laptop 3-4 times.
Current and voltage
Exceeding the voltage and current values can cause irreparable harm to complex computer technology. For this reason, you should always select the characteristics of the bank in such a way that they coincide with the parameters specified by the manufacturer of the netbook or laptop.
A lower value of electrical characteristics will also affect the recovery efficiency of the laptop battery. Even with the necessary voltage level, the device cannot be powered normally with a small value of the charging current.
Modern laptops run on batteries with a total voltage of 15 - 20 Volts, so you can’t use power banks for smartphones. For this type of digital technology, you need a powerful external battery, which must be connected through an adapter of suitable power.
Weight and dimensions
The mass of the device and its size are important when the device is often used on trips. On long trips, the laptop’s power bank will not take up too much space in the backpack, but its weight and dimensions will be especially noticeable in a small bag.
If you need an ultra-thin device that will not occupy significant space, it is recommended to purchase products that use Li-Pol batteries.
Appearance and body material
The appearance of the backup battery for many buyers is also an important selection criterion. Most often, products are selected by color and shape of the case. Sheath material is also important, especially if the extra battery is used at high loads.
In any case, the appearance of the new device should be impeccable. If there is visible damage to the case, it is recommended to refuse the purchase.
Manufacturer
By purchasing products from well-known manufacturers, you can be sure of the excellent quality of the external battery.Such devices are much better than cheap counterparts, but such a purchase will cost more.
An ideal option would be to buy the manufacturer’s bank that released the laptop. The manufacturer's recommendations on the choice of a charger or a power bank are also very important, because universal models of external batteries are completely unsuitable for some laptop models.
Additional functionality
The presence of additional functionality allows you to use the bank more comfortably and safely. For example, if a digital display is installed, then you can accurately determine the battery level, and the quick charge function allows you to restore the electrical capacity of the laptop battery with minimal time.
The shockproof case will be a reliable protection of the device during mechanical impact, and if at the same time a high level of tightness is ensured, then even with high air humidity the bank will work in normal mode.
What models are worth paying attention to
Proven time-tested banks can be used to provide backup power to the laptop. There are several universal models that are great for charging this type of device.
Xiaomi Mi Power Bank 3 pro 20,000
A distinctive feature of this model is its fast charge. Due to the presence of high significant amperage, the recovery of the battery capacity of a laptop can be carried out at a power of up to 45 watts.
This model is universal, so with its help you can charge not only laptops, but also mobile phones. A small USB-C cable is also supplied with the device, which can withstand currents up to 3 Amperes without any negative effects.
Robiton Power Bank LP-24-Solar
The advantage of this model is not only a large capacity (24000 mAh), but also the ability to charge from solar energy. Implemented such a function on the upper part of the body, which is made in the form of a photosensitive panel.
The device is equipped with a powerful LED flashlight, as well as indication elements, which can approximately determine the level of charge of a portable battery.
INTERSTEP PST-150PD
This laptop model has a capacity of 40,000 mAh and a maximum charge power of 45 watts. In addition to standard USB connectors that support fast charging, the external battery of this model is equipped with a 220 V outlet. The built-in energy converter allows you to power any low-power devices that operate on a home network.
The main disadvantage of such a device is the large mass. The battery weighs 1.7 kg, but to increase the comfort of using the product, a convenient belt is built into the case. You can charge the device either from a standard USB connector or from a DC source with a voltage of 12 volts.
Baseus Mini JA 30000
A powerful portable battery that can store electricity with a total capacity of up to 30,000 mAh. The device is equipped with a Li-Pol battery, so the thickness of the product is only 33 mm.
You can charge the Baseus Mini from any USB port, provided that the current value does not exceed 2.4 amperes. Despite the plastic case, the product is quite durable and protected from external influences.
The use of polymeric materials allowed developers to reduce the mass of the device to 420 g, which is an undoubted advantage over similar models of banks.
HIPER SPX10000
The capacity of this device is not significant (only 10,000 mAh), but if you need to charge the laptop no more than 2 times, then this product is ideal for such work. A small capacity value positively affected the size of the bank and its weight. The mass of the device is only 388 g, and the height of the case is 21 mm.
The product has a standard USB output for connecting consumers, but the maximum voltage value is only 12 volts.If the laptop does not support charging at these values, then you will need to purchase a Verbank of another model.
The main advantage of the laptop is mobility, but the limited battery charge often does not contribute to the long-term use of the device. Poverbanks, of suitable capacity, can completely solve this problem.
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