3 Best External Batteries

Anyone at least once in his life encountered a badly discharged battery of an urgently needed electronic device, and many of us get this trouble on a regular basis.

The way to solve the problem is simple – just get a compact external battery, in time to recharge it and do not forget at home, going on business. Just do not forget – to choose the best external battery, you need to really assess your needs and choose the device for optimal capacity. In the first approximation, its value should be two times higher than the corresponding indicator of the battery of the gadget, which is supposed to be charged most often.

Rombica NS240 Quick

Rombica NS240 QuickThis external battery is universal by the way of connecting the power adapter or other chargers. In addition to the micro USB interface, the recommended Power Bank is equipped with connectors Lightning and USB Type-C. In other words, charging it will not be a problem for owners of almost any mobile gadgets.

In addition, as the name suggests, the Rombica NS240 Quick supports fast charging technology. Moreover, both own battery and accumulators of connected mobile equipment – of course, if the latter themselves are compatible with the specification of Quick Charge 3.0. As a consequence, one of the three available output connectors is able to “give out” voltage in the ranges 5-6, 6-9 and 9-12 V with currents of 3, 2 and one and a half amperes respectively. It remains to add that this Rombica can boast a very capacious lithium-polymer battery (24 000 mAh).

The main advantages:

  • Three types of input connectors.
  • Possibility of simultaneous charging of three devices.
  • Two-way support for technology Quick Charge 3.0.
  • Large own capacity.


  • A power adapter that supports quick charging would not interfere with the kit.

Xiaomi Mi Power Bank 5000

Xiaomi Mi Power Bank 5000A simple and very compact inexpensive external battery that fits easily even in a relatively small pocket and is almost lost in the average female handbag. The body of the device is made of anodized aluminum, which most positively affects its strength. Unfortunately, the resistance to scratches and dirt in this model is not at altitude. If the look is important to you, you should buy a case.

The device has nothing superfluous: one connector to the input and output, a control button and a four-level indicator. Actually, to provide energy, the mobile communication tool is simpler and no longer necessary. Especially if the latter does not support fast charging technology, which Xiaomi Mi Power Bank 5000 also does not know how. The useful capacity of the battery here is about 4300 mAh, so for regular use with a particularly “gluttonous” portable technology, this poverbank does not work.

The main advantages:

  • Stylish aluminum case.
  • Attractive cost.


  • Does not support fast charging.

Cactus CS-PBPT18-18000AL

All that has been said about Rombica’s external battery is also applicable toCactus CS-PBPT18-18000AL this model since it is a 100% clone of NEO PRO180 for a slightly lower price. A characteristic feature of Power Bank of this design can be called an intelligent control scheme. It protects the connected gadgets from overcharging and power surges, and their own electronic stuffing from overheating and short circuits, and demonstrates the ideal quality of stabilization of operating parameters in all modes.

By the way, in the absence of load, after 30 seconds, the external battery’s electronics are automatically switched off. One universal cable and ten different adapters allow you to connect most popular notebook models. For example, four adapters are suitable for several models of Acer, at least three – for Lenovo, Asus, HP, Samsung and other well-known brands are not forgotten. Acquire a dedicated laptop Power Bank to charge mobile technology is less useful, but if it is – why not take the opportunity to increase its autonomy. Fortunately, for this, all the necessary connectors are also available.

The main advantages:

  • Output voltages at 12, 16 and 19 V.
  • Adapters for two dozen models of notebooks.
  • Intelligent protection system.
  • Robust anodized aluminum housing.
  • Fully charged from the network in less than 4 hours.


  • Expensive.

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