Many of us have found ourselves in unpleasant situations due to a dead battery in a smartphone or laptop. But what if the battery charge is approaching zero, and there is not a single outlet nearby? The solution is simple — you need to buy an external battery, also known as a power bank (Power Bank).
All prices indicated in the article are current at the time of publication.
What is Power Bank?
A power bank is a compact charger that is a battery for powering a smartphone, laptop or other gadget. Power Bank allows you to always stay in touch, recharging electronic devices in time.
At the heart of powerbanks are batteries of a certain capacity. They can be lithium polymer or lithium ion. When buying an external battery for a phone or laptop, it is better to choose Li-Pol devices — they do not discharge for a long time and do not heat up during prolonged use.
When the power of the Power Bank drops, it must be charged in the same way as any other electronic device — with a standard power supply with a microUSB or Type‑C cable.
What parameters to consider when buying a power bank?
To understand which external battery is better to buy, consider the technical specifications:
- capacity. The main parameter of a portable device. For a smartphone, a 10–20 thousand mAh device is suitable, and for a laptop it is better to look for at least 30 thousand mAh. There are also compact models with 3000–5000 mAh that allow you to charge smart watches, wireless headphones and phones;
- charging current. For most small gadgets (smartphones, smart watches), 2 A is enough, and for laptops, at least 3 A is required;
- connection connectors. USB A (standard USB) is in almost every external battery — third-party gadgets are connected to it. To charge the power bank itself, micro USB and Type‑C are usually used. External batteries for laptops are additionally equipped with adapters for different power sockets;
- frame. It can be made of metal, plastic, polycarbonate or anodized aluminum.
Some manufacturers also indicate the charging power. It depends on the current and voltage. The higher the power, the faster the device connected to the power bank charges. Also, this time is affected by the battery capacity of the gadget.
Top powerbanks for smartphones
First, let’s look at the best external batteries for smartphones.
Redmi Power Bank 20000 mAh
This is a power bank for every day from Xiaomi. It has a plastic case and a low price. The capacity of the Li-Pol battery is 20,000 mAh. From the power outlet, the power bank can be powered via microUSB and Type‑C connectors, and any device is connected to the battery via USB‑A (standard USB connector). MicroUSB and Type‑C allow you to use Quick Charge 3.0 for fast charging.
The power of Redmi Power Bank 20000 mAh is 21 W. The battery level is shown by four LED indicators.
- democratic price;
- protection against overheating and power outages.
- wireless charging is not supported.
The price of Redmi Power Bank 20000 mAh is about 3000 rubles.
Accessstyle Arsenic II 20PQD
One of the best Power Bank if you consider the value for money. Accesstyle Arsenic 20PQD is suitable for users who want to always be in touch, being able to recharge their gadgets. The battery capacity is 20,000 mAh, the power bank is enough for three or four smartphone recharges.
The device received the function of fast charging of the attached Power Delivery gadgets and the Quick Charge option for the rapid restoration of the energy supply of the Power Bank itself. The current charge level is shown on the display.
A USB A / Type C cable was included with the battery.
- good value for money;
- protected from overheating and short circuits;
- charge level display.
- charges 6–7 hours.
The price of Accesstyle Arsenic 20PQD is about 2500 rubles.
Xiaomi Mi Power Bank 3 10000 mAh
A small 10,000 mAh Xiaomi power bank can always be carried in a backpack, bag or even a jacket pocket. The metal body is scratch resistant. Assembled very high quality. Mi Power Bank 3 10000 mAh is presented in two colors — blue and silver.
At the end there are two USB‑A, Type‑C with support for Quick Charge and microUSB. Quick Charge 3.0 also works in reverse via USB‑A, allowing you to quickly charge connected smartphones.
There are four battery indicators on the case. The manufacturer included a USB cable in the power bank kit.
- protection against critical heating and short circuit;
- small sizes;
- Quick Charge 3.0.
- capacity 10,000 mAh.
The price of a power bank is about 2000 rubles.
Hiper Travel 10K
This is another good power bank for a budget class phone. Its capacity is 10,000 mAh. On the side of the case are two USB connectors for connecting two devices at the same time.
The plastic case is covered with a soft and pleasant to the touch material with Soft Touch. The device supports pass-through charging. This means that you can charge other gadgets from an external battery while it is connected to the power supply.
There are LED battery status indicators on the case. The capacity of Hiper Travel 10K is enough for 2–3 smartphone battery charges.
- compact dimensions;
- democratic price;
- housing with Soft Touch coating.
- capacity 10,000 mAh.
The price of Hiper Travel 10K is about 1600 rubles.
Top external laptop batteries
Now let’s figure out what a good external battery to buy as a standalone power source for a laptop. It is important to note that all of them are also suitable for smartphones.
Rombica NEO PRO 440C
A rather expensive Power Bank, but this is due to the battery capacity of 44,000 mAh. The device weighs 1150 g. The kit includes 28 adapters for connecting different devices. Rombica NEO PRO 440C is a versatile device capable of delivering the desired voltage from 5 to 20 volts and current from 3 to 4 amperes.
This external battery can charge any laptops, smartphones and other gadgets.
- 28 adapters included;
- capacity 44,000 mAh.
- high price
- weight over 1 kg.
The price of Rombica NEO PRO 440C is about 10,000 rubles.
One of the best external laptop batteries. Battery capacity — 20,000 mAh. This device has two USB‑A connectors to which you can connect rechargeable devices. Two USB‑C are also built-in, from which you can power other gadgets or recharge the battery itself.
You can connect laptops, phones, smart watches, headphones and other gadgets to this Power Bank. The output power of the device is 30 W for Type‑A and 65 W for Type‑C.
The battery itself charges in an hour and a half from a 65-watt power adapter. On the case there is a display showing the battery level and time. There is a rare option for power banks — the display shows the charging power.
- overheat protection;
- short circuit protection;
- the ability to charge almost any device.
The price of Baseus Blade is about 5200 rubles.
Qumo PowerAid Note Pro
97 W external battery. It has an impressive capacity — 40,000 mAh. The laptop is charged via a DC-jack, for which almost three dozen adapters were added to the kit. To power other devices, there are two USB‑A connectors and one Type‑C with fast charging up to 18W.
To charge the Power Bank itself, a 38 W unit is designed, with which the battery is restored in 4 hours. The remaining charge and voltage are indicated on the display. The battery has a strong, durable case weighing more than 1 kg.
- versatility and the ability to charge different devices;
- 28 adapters included.
- weight over 1 kg.
The price of Qumo PowerAid Note Pro is about 4000 rubles.
Hiper ForcePower 100W
A small external battery of 20,000 mAh can power not only a laptop, but also any electronic gadget. The device received a stylish and durable metal case. Fast charging standards supported:
- Quick Charge 3.0 — only in USB‑A;
- Power Delivery — only via Type‑C.
With this device, you can charge almost any smartphone up to 6–7 times. An exception may be gadgets with record-breaking large batteries — with a capacity of more than 5000 mAh. The Power Bank itself can be powered via Type‑C or microUSB connectors. On the end of the case there are five LED indicators that indicate the degree of charge. The device supports pass-through charging: as long as the Power Bank is connected to the outlet, you can power other gadgets from it.
- output power up to 100 W via Type‑C;
- end-to-end charge supported;
- compact dimensions.
- QC 3.0 and Power Delivery functions do not work at the same time.
The price of Hiper ForcePower 100W is about 6200 rubles.
So, what is the best external battery for a phone or laptop? If you need a compact power bank for periodically recharging your smartphone, you can stop at the time-tested Xiaomi Mi Power Bank 3 10000 mAh. If maximum battery capacity is a priority, and you need to charge your laptop, choose Hiper ForcePower 100W or Baseus Blade.
When you want to buy the best external battery for your laptop, Rombica NEO PRO 440C is the right choice. Only its price can not suit — about 10,000 rubles.