7 external battery: how to choose the characteristics, pros and cons

Smartphones, tablets, MP3 players and other modern Soup can be discharged in the most inopportune moment. External batteries are designed to solve the problem of filling gadgets charge when there are no stationary power sources.

How to choose a portable charger

The external battery is an array lithium polymer or lithium ion batteries, assembled in one body. The product is a kind of power bank for tablets, smartphones and other advanced mobile devices. Range of portable power-banks is quite broad. To select high-quality battery charger, you should carefully examine the basic operating characteristics of the device.

important parameters

• Battery capacity - a crucial indicator, which determines the number of charge cycles, weight and external dimensions of the device. The higher the energy content, the greater the amount of energy contains powerbank. At optimal external accumulator battery capacity should be twice greater than the total power consumption of the battery charger.
• The strength of the outgoing current - parameters that have a direct impact on the speed of charging. The more the ampere outputs the external battery, the less time required to recharge the connected devices.

secondary characteristics

• color and stylistic design;
• the form factor of the product;
• casing material;
• method of indicating;
• additional equipment.

Top 7 of the best models of external laptop battery is presented in our review.

Model HIPER XPX6500

Portable charging unit smartphones and tablets HIPER XPX6500 is compatible with many mobile devices powered from the USB portal and is equipped with a lithium-polymer technology, which provides a greater margin of battery capacity. External elements of the product are made of durable plastic coated stylized natural leather. Additional features of the portable charger is built bright flashlight with two LED lights.

Characteristics HIPER XPX6500

• Battery Type - Li-Polymer;
• power consumption of the device - 6500 mAh;
• input connector - micro-USB;
• Maximum input current - 2100 mA;
• Output connector - USB 2.0;
• Nominal output current - 2400 mA;
• Output Voltage - 5 V;
• full replenishment of the battery 3 via chasa;
• size - 13,2h0,7h1,25 cm;
• weight - 0,152 kg;
• body color - black, brown;
• Warranty - 1 year;
• manufacturer - China.

Benefits

• super-slim design;
• light weight of the product;
• stylish appearance;
• versatility,
• overheat protection;
• digital screen that displays the percentage of charge;
• lock against short circuit;
• attractive price.

Minuses

• short USB-cable;
• It can not be used to charge the laptop.

Model ZMI QB820

Universal external charger ZMI QB820 from the world-famous brand Xiaomi supports USB Power Delivery standard and can be used to charge tablets, smartphones, Notebook, Fitness Trackers, Music players and other devices. Intellectual instrument automatically detects the connected gadget, and automatically selects the optimum amperage and voltage.

Characteristics ZMI QB820

• Battery Type - Li-ion;
• power consumption of the device - 20000 mAh;
• the number of batteries - 6;
• voltage at the input - 5-20 V;
• the type of input connector - USB Type-C;
• output connector - USB-C, two connectors USB-A;
• Maximum input current - 2000 mA;
• current output - 2400 mA;
• full replenishment of the battery through the 3.8 hour;
• size - 16h8,15h2,2 cm;
• Weight - 0.44 kg;
• Black - the color of the product;
• Warranty - 12 months;
• manufacturing country - China.

Benefits

• aluminum body with a matte finish;
• sleek design;
• large capacity;
• ultra-fast charging gadgets;
• high efficiency;
• LED-battery level indicator;
• a built-in temperature sensor;
• USB-Micro adapter cable Type-C supplied.

Minuses

• high price;
• significant weight.

Model Pineng PN-969

Model PN-969 has expanded its line powerbank-devices company Pineng in 2016. A characteristic feature of new items protrudes more thin body which has been obtained by the introduction of lithium-polymer technology. External battery is rated for 500 full cycles and used for charging modern tablets, smartphones, portable speaker technology, digital cameras, GPS-devices.

Characteristics Pineng PN-969

• Battery Type - Li-Polymer;
• capacity - 20000 mAh;
• the type of input connector - micro-USB;
• the current drawn from the input portal - 2000 mA;
• type output connector - Two USB-connector;
• output voltage - 5 V;
• Nominal output current - 2100 mA;
• full replenishment of the battery 10 via hours;
• size - 16,3h7,6h2,1 cm;
• Weight - 0.42 kg;
• product color - white, black and red;
• construction of the body material - plastic;
• warranty period - 1 year;
• manufacturer - Malaysia.

Benefits

• Built-in multi-level security system;
• embedded microprocessor;
• Shockproof ergonomic housing;
• monochrome LCD display for indicating charge percentage;
• The power saving function;
• capacity battery;
• stylish design.

Minuses

• considerable price;
• the weight;
• short USB-cable.

Model HARPER PB-0011

The compact dimensions of the model HARPER PB-0011 allow to wear an external power source in a backpack or clothing pocket. The product is intended to compensate for the charge plate, Bluetooth-headsets, smartphones, digital cameras. Portable Charger supports the simultaneous connection of two devices and is designed for 300 full charge and discharge cycles.

Characteristics HARPER PB-0011

• Battery type - Li-Polymer;
• device capacity - 10000 mAh;
• type of input port - micro-USB;
• rated input current - 2000 mA;
• Output connector - two USB 2.0 connector;
• voltage on the output device - 5 V;
• output current - 2400 mA;
• time required to complete battery charging - 6 hours;
• size - 14,82h7,42h1,58 cm;
• weight - 0,225 kg;
• body color - gray;
• body material - plastic;
• warranty from the manufacturer - 1 year;
• manufacturer - China.

Benefits

• reduced thickness;
• small size;
• three cable supplied (microUSB, Type-C, Apple 8 pin);
• convenient location of the cables on the side of the case;
• body slip coating;
• charge level display by means of four LEDs;
• short circuit protection;
• The power saving function;
• high efficiency;
• versatility,
• affordable price.

Minus - in the absence of a complete set of network adapter.

Xiaomi Mi Power Bank 2

Intelligent Power Bank Mi 2 equipped with a lithium-polymer battery, which at times raises the efficiency of the charger and maintains a stable voltage. The second generation of Power Bank Xiaomi has ultra-anodized aluminum housing and a sufficiently large reserve of energy. The manufacturer took care of the safety of the appliance and equipped it with 9 protection steps, including thermal control, short circuit protection, over-voltage and over-temperature.

Characteristics of Power Bank 2

• Battery Type - Li-Polymer;
• capacity - 10000 mAh;
• the type of input connector - micro-USB 2.0;
• Connector output - USB 2.0;
• Output Voltage - 5 V;
• output current - 2400 mA;
• rated input current - 2000 mA;
• time to full battery charge - 4.2 hours;
• size - 13h7,1h1,41 cm;
• weight - 0,217 kg;
• body color - silver, black;
• Warranty - 12 months;
• manufacturer - China.

Benefits

• stylish design;
• aluminium case;
• high performance;
• improved ergonomics of the product;
• ductile housing;
• low weight;
• compact size;
• multi-level protection;
• 90% efficiency;
• affordable price.

Minuses

• modest equipment;
• shortish wire for charging.

Model ASUS ZenPower

Stylish and lightweight external battery ZenPower fits easily in the palm of their geometrical parameters is comparable with a credit card. ASUS outfitted compact device PowerSafe technology offering improved security and performance of persistent issued device. An additional means of protection acts metal housing with rounded edges.

Characteristics ASUS ZenPower

• Battery Type - Li-ion;
• capacity - 10050 mAh;
• input port - micro-USB;
• Connector output - USB-port;
• number of slots - 1;
• voltage at the device output - 5.1 V;
• the maximum output current - 2400 mA;
• time, fully charge the battery - 6 hours;
• size - 9h5,9h2,2 cm;
• weight - 0,215 kg;
• body material - aluminum;
• warranty from the manufacturer - 12 months;
• manufacturer - China.

Benefits

• high capacity;
• Shockproof compact body;
• a wide range of body colors;
• stylish, sleek design;
• cover, supplied;
• short circuit protection;
• thermal control;
• protection against voltage and current surges;
• Charge level indicator light.

Minuses

• one USB-output;
• short USB-cable;
• price.

Model Canyon-CNE-CPB78

External battery CNE-CPB78 the brand Canyon has two portals at the exit, so powerbank can simultaneously charge two portable devices. The apparatus may be used as a standby power source for tablets, navigators smartphones, Players, speakers, e-books.

Characteristics CNE-CPB78

• Battery Type - Rechargeable Li-ion battery;
• capacity - 7800 mAh;
• input port - micro-USB;
• type connector output - two USB-ports;
• voltage on the output device - 5 V;
• the maximum current at the output of USB-ports - 1000/2000 mA;
• time for a full recovery self-charging battery - 10 hours;
• size - 10,2h5,9h2,2 cm;
• unit weight - 0.18 kg;
• construction of the body material - plastic;
• body color - white, yellow, gray, blue;
• warranty from the manufacturer - 24 months;
• place of production - China.

Benefits

• stylish appearance;
• rugged Coated Soft touch;
• a choice of body colors;
• 4 protection level (surge, short circuit, deep discharge, overcharge);
• Tally;
• low weight;
• built-in flashlight;
• affordable price.

Minuses

• scanty equipment;
• microUSB cable length less than 30 cm;
• no marking on the current in the output terminals.

External batteries have become an essential accessory for mobile users. Modern power-banks provide an opportunity at any time to make up the energy discharged gadgets regardless of location - whether it's park, forest, public transport, shops, a movie theater, or educational institution.