We all know the frustration and helplessness of the ever-dwindling battery of our smartphones day in and day out. And in a mobile juice crisis, we struggle to find a power source to keep gadgets alive when every last drop out of battery has been squeezed. No need to confine yourself to an isolated wall to revive your phone’s discharged battery and pray for resurrection because you can lay our hands on.

Our Best Pick: Philips 11000 mAh Power Bank (DLP6006B)

Philips 11000 mah power bank is the perfect choice to keep your gadgets alive. It a powerful 3 USB ports power bank with 5V input/output and 1A output allow you to charge 3 gadgets instantly anywhere when you’re away from a wall charging outlet or car charger. 11,000 mAh big power capacity power bank comes with the universal unit (USB connection) that gives you the extra power to charge your devices multiple times on the go.

The Tech Gram

Editor’s Choice: Intex IT-PB11K 11000mAH Power Bank

An optimal choice to keep your smartphone’s battery charged up all the time. It is a very high-performance rectangular shaped power bank and comes with a Micro USB battery, 4 LED indicators to show power status and LED Flashlight. Intex IT-PB11K 11000mAH Power Bank is an ideal companion for mobile phones, Bluetooth headsets, smartphones/PDAs, MP3 players, portable gaming devices, digital cameras, GPS devices and more. Interestingly, the device comes with one-year manufacturer warranty which is limited to manufacturing defects only.

Runner up: Philips 11000 mAh Power Bank (DLP6006B)

An ideal choice for travelling as it has two welcome features i.e. LED torch and clear LED screen display indicates the remaining battery percentage in blue colour. Every time you connect the power bank with the gadget, it lights up to display the current status. The Philips DLP6006 Power Bank is very high on style and elegance quotients. The entire body is covered by a classy white leather sheet finely stitched at the edges, which makes this device a stylish accessory perfectly matches to the style quotient of every user.

Editor’s Choice: Anker PowerCore+ 26800 power bank

Another great investment if you’re looking for a cost-effective portable battery pack from America’s Leading USB Charging brand. This is an ultra high capacity power bank comes with Qualcomm’s advanced Quick Charge 3.0 technology (Aluminum 3-Port Ultra-High-Capacity External Battery) allows you to recharge all the compatible devices 2X faster.

PowerCore+ 26800 is one of the world’s highest capacity portable chargers using PowerIQ and VoltageBoost technologies to facilitate universal full-speed charging for even non-quick charge devices, up to 2.4 amps per port. The Premium Ultra-High-Capacity Power Bank is an ideal investment for quick charge 3.0 compatible devices such as Galaxy S7 / S6 / Edge, Galaxy Note 4 / Edge, LG G5 / G4, LG G Flex2, Nexus 6, HTC One M8 / M9, HTC Desire Eye, Droid Turbo Xperia Z3 / Z3 Compact / Z3 Tablet Compact / Z4 Tablet and more.

Recommended Pick:

Mi Power Bank 2i 20000mAh

The first power bank from the house of Xiaomi which is manufactured in India. The power bank delivers elegant design, excellent quality and high output capacity. Built with quality from start to finish, the 20000mAh Mi 2i is an innovative solution of elegant utility which comes with perforated exterior provides a scratch-resistant, comfortable and slip-resistant hold.

The all-new 20000mAh Mi Power Bank 2i is a great choice for solo travellers as the device supports fast charging and intelligently adjusts power output to match device’s requirement. It is compatible with a wide range of devices without compromising on the size and performance. The power bank comes with a battery capacity of 20000mAh, Quick Charge 3.0 support on a single port, high-density lithium polymer batteries and dual USB output which allows you to charge two devices simultaneously with a conversion rate of 85%

Ambrane 10,400mAh power bank (P-1000 Star)

To power up your dying smartphone and keep it charged all the time whenever you’re away from a charging plug. Talking about its versatility, It is a sleek and compact portable charger a high-intensity ultra-bright LED torch,  buttons, indicator lights, connection ports and a digital display which makes it easy to carry it around. The device has BS Shell casing manufactured by precision CNC digital cutting to cover the entire battery from end-to-end.

This product weighs just 250 grams and comes with Samsung Lithium-ion cells for better performance. It runs on state-of-the-art chipsets that are safer and improves charging conversion rate. You will get a one-year manufacturer warranty against manufacturing defects. Ambrane 10,400mAh power bank is an innovative product compatible with Nokia, Blackberry, Apple or any Android device as well as all electronic gadgets, including music players and cameras.

Lenovo PA13000 13000mAH

The Lithium-Ion Power Bank which comes with a Micro USB battery have the charge capacity of 13000 mAh, overcharge protection, LED indicators, and overcurrent protection. This rectangle shaped power bank is your perfect companion to charge all your devices like digital camera, media player, mobile phone, tablet and a variety of devices. Lenovo PA13000 13000 mAh is a great portable charger to juice up your smartphone several times a day.

For sure, power banks are the most versatile way to keep our smartphones and tablets topped off on the go. After investing so many hours of research and testing, our team has shortlisted the above pocket-size battery packs.

WAIT! DO YOU KNOW?

The fast-charging portable battery comes with a dedicated Mini or Micro-USB input socket used to receive power from a wall socket adapter and a full-sized USB socket for discharging the power to our devices. And don’t forget that a single unit of power bank has an input port, charging circuit, battery, discharging circuit, output port and indicators.

power bank block diagram

The input port serves as a connecting point which charges the power bank for energy storage using its charging circuit. Also, it regulates the voltage and current supplied to the battery, which is the primary energy storage element and required to charge up our mobile phone. The discharging circuit functions very similar to the charging circuit and safety cut-off the power flow to prevent overcharging and overheating. Output port connects power bank with smartphones and indicators help in visual monitoring.

Available in various sizes and shapes, these devices work on rechargeable lithium battery fitted inside them in a protective casing, which is guided by a printed circuit board (PCB) to control power flow and allow our device to access stored electrical energy using built-in batteries through a USB port.  Technically, the rechargeable battery is based on lithium technology which is further categorized as:-

  • Lithium-ion: Lithium-Ion batteries are popular for their higher energy density as they are designed to store more electrical charge in a given size or volume. These power bank batteries are quite cheaper to manufacture and often, they’re prone to ageing issues.
  • Lithium-polymer: In Lithium-polymer power banks, you are safe from ageing to the same extent, but they’re comparatively expensive and may not suit all budgets.
Image Credit: Instructables.com

Yes, Lithium-Ion and Lithium-Polymer batteries are the most popular options available to us. An average efficiency to perform the number of charge/discharge cycles may differ on the battery type, charging capacity, temperature and the current charge level. Here’s a great thumb of rule many people consider to calculate average efficiency.

The Formula: Power Bank Rating (mAh) × Efficiency × Device Depletion ÷ Device Capacity (mAh)

Example:
-Powerbank: 10000mAh (full at 90%)
-Phone Battery: 1500mAh
-Calculation: (10000mAh x 90% x 80%) / 1500mAh = up to 5 times

For more updates on the latest mobile phones power banks, upcoming power banks in India, reviews, comparisons and more interesting stories check out Insightglimpse.com