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Buy Eveready UM 22 Power Bank for Smartphones: Battery Charger
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Eveready UM 22 Power Bank for Smartphones

(White)
6 Months Warranty See Details
Rs. 1,199 11% Off
Rs. 1,060
Inclusive of taxes
Seller: shrijee
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Key Features of Eveready UM 22 Power Bank for Smartphones (White)

  • Overload Protection
  • Overcharge and Short-circuit Protection
  • 30 Days Standby Time
  • Multiple Charging Tips
  • USB Charging Time - 11 hrs
  • Protects from Self-discharge
  • Apple Compatible Tip
  • 2200 mAh Li-Ion Battery

Compatible Noverticals for Eveready UM 22 Power Bank for Smartphones (White)

Karbonn:  A111
Lenovo:  A601
Micromax:  A73
Vox:  V5300

Compatible Mobiles for Eveready UM 22 Power Bank for Smartphones (White)

HTC:  Wildfire
Samsung:  Galaxy3 I5801, I5801
BlackBerry:  8520, Curve 3G 9300
Videocon:  Zeus Evolve V7500
Acer:  Ferrari Edition Liquid E
Dell:  XCD28
Motorola:  Charm MB502

Specifications of Eveready UM 22 Power Bank for Smartphones (White)

In The Box
Sales Package USB Cable and User Manual
General
Brand Eveready
Type Portable Charger
Connector Apple Compatible Tip micro USB, mini USB
Model UM 22
Color White
Power
Fast Charge Yes
Charging Time 6 hrs
Dimensions
Width x Height x Depth 20 x 122 x 112 mm
Warranty
Warranty Summary 6 Months Warranty
Please note: All products sold on Flipkart are brand new and 100% genuine

Reviews of Eveready UM 22 Power Bank for Smartphones

TOP REVIEWS View All Top Reviews (134)

'Top Reviews' lists the most relevant product reviews only. Show ALL instead?
★★★★★
★★★★★
Alok Vaidya
16 May 2013
The 'certified buyer' badge indicates that this user has purchased this product on flipkart.com.
certified buyer
Does not provide 2200 mAH at all !!

I got this product more than a month ago, around the last week of March. The reason I waited this long to review it was because I do not like to offer opinions about products I barely used a week.

The summary of my review is the title of the review. No matter what the product rating and manual promises this product does not deliver the promised 2200 mAH of charge. I own an iPhone5, an iPad (3rd generation), a Kindle Touch and a Kindle Fire HD 7". During this time I charged each of these devices with this device but in each case the device did not deliver the 2200 mAH charge promised....
()

I got this product more than a month ago, around the last week of March. The reason I waited this long to review it was because I do not like to offer opinions about products I barely used a week.

The summary of my review is the title of the review. No matter what the product rating and manual promises this product does not deliver the promised 2200 mAH of charge. I own an iPhone5, an iPad (3rd generation), a Kindle Touch and a Kindle Fire HD 7". During this time I charged each of these devices with this device but in each case the device did not deliver the 2200 mAH charge promised....
I got this product more than a month ago, around the last week of March. The reason I waited this long to review it was because I do not like to offer opinions about products I barely used a week.

The summary of my review is the title of the review. No matter what the product rating and manual promises this product does not deliver the promised 2200 mAH of charge. I own an iPhone5, an iPad (3rd generation), a Kindle Touch and a Kindle Fire HD 7". During this time I charged each of these devices with this device but in each case the device did not deliver the 2200 mAH charge promised. iPhone5 has a 1440 mAH battery and hence should be ideally charged completely once and atleast to 50% once more in one single discharge of this unit. The observed and noted truth was much different. On an average (I charged my phones atleast 14-15 times with it during this time) it charges the phone around 90-95% once and thats all. I could charge my phone fully with it from 20% to 100% and then around 12-15% the next time and the device would giveaway. Also some might say these may have been effects of Fast Charging (upto 80%) & Trickle Charging (80%-100%) where a device charges very fast upto 80% say about in an hour and then charges slowly from 80 to 100% (to keep the electrons moving) taking again another hour to do so, but that's not the case. I charged my phone at various discharge percentages 20%, 50%, 30%, once I even let it drop to 5% to charge from there to full charge. But during all times the result was the same around 90-95% charge.

I charged my iPad (11,560 mAH) and it charged around 13% (I know this because I made a note of it) from 16% to 29% which is a charge of approx. 1500 mAH. Same was observed with Kindle Fire HD (4400 mAH) it should have been charged exactly 50% but it was charged well below 40%.

Mentioned above are results from repeated observations and not one-time readings. If the device promises 2200 mAH and repeatedly delivers only around 1500 mAH there should be some problem with it. I am not an electrical engineer to understand every quirk involved here but I do read a lot about batteries (I even bought a book entirely devoted to them) and so if I am missing a technique here I do not know. May be the way I am measuring is not the way to ideally measure the charge delivered but in that case too I'd blame the company for not putting the way to do so right in the product manual or specification. Also they need to understand that not every person is living around with sophisticated measuring devices for batteries and hence a layman is going to analyse the performance of the power bank device by such (may be crude) readings itself. If by measuring this way the device is only going to deliver that much then I suggest may be that's the charge rating they put on the box or at least mention it clearly as an alternate. Because I'll tell you someone reading the 2200 mAH rating and knowing his device to be around 1500 mAH draws the logical inference that his device could get charged about 1 and 1/2 times in a single discharge of the power bank. So the responsibility here lies on the manufacturing company to set the record straight in order to let the customer make an informed choice. May be if I would have known about something like this I would have gone for the UM52 with 5200 mAH charge which would have sufficed for atleast 3 of my devices.

From a product bearing Evereadys' name I was expecting quite highly which remained to be delivered.

Thanks,
Alok.

92% of 122 users found this review helpful.
★★★★★
★★★★★
Dasmeet Singh
24 Feb 2013
The 'certified buyer' badge indicates that this user has purchased this product on flipkart.com.
certified buyer
Poor battery

Battery is pretty poor. It can't charge my 1500 mah phone fully even once. Plus if I don't use it for a week, battery gets discharged automatically.

This costs twice as much as local chinese chargers but I don't think it's worth it.

92% of 24 users found this review helpful.
★★★★★
★★★★★
Subhajit Kumar
24 Oct 2013
The 'certified buyer' badge indicates that this user has purchased this product on flipkart.com.
certified buyer
Not an worthy product

There are some products which you shouldn't consider even if they are given free. Alas this falls in that category.

The battery back up is horrible. Writing cons first as it has more cons than pros.

Cons :-

- Don't provide even 1500 mAH battery back up
- Get discharged easily
- Capacitors are bad as you will not get much standy storage, not even 3 - 5 days
- Makes me feel whether Eveready really manufactured this device as performance resemblances like cheap chinese products
- Takes too long to charge
- Gets easily discharged
- not worth your money, better buy some good smartphone port...
()

There are some products which you shouldn't consider even if they are given free. Alas this falls in that category.

The battery back up is horrible. Writing cons first as it has more cons than pros.

Cons :-

- Don't provide even 1500 mAH battery back up
- Get discharged easily
- Capacitors are bad as you will not get much standy storage, not even 3 - 5 days
- Makes me feel whether Eveready really manufactured this device as performance resemblances like cheap chinese products
- Takes too long to charge
- Gets easily discharged
- not worth your money, better buy some good smartphone port...
There are some products which you shouldn't consider even if they are given free. Alas this falls in that category.

The battery back up is horrible. Writing cons first as it has more cons than pros.

Cons :-

- Don't provide even 1500 mAH battery back up
- Get discharged easily
- Capacitors are bad as you will not get much standy storage, not even 3 - 5 days
- Makes me feel whether Eveready really manufactured this device as performance resemblances like cheap chinese products
- Takes too long to charge
- Gets easily discharged
- not worth your money, better buy some good smartphone portable charger providing more than 5000 mAH
- pricey as performance wise it is like any cheap chinese product

Pros:-

- Light and easy to carry
- Provide some battery back up incase of emergency; trust me the kind of battery back up it will give its not worth enough to carry an additional device, better get your phone charged from an electric socket

10 of 10 users found this review helpful.
★★★★★
★★★★★
Sudhir
11 Jan 2014
It technically delivers ~2200mah

First of all: I did not buy the product here. But felt like leaving a comment so that others can make a better judgement of the product.

The pack technically delivers around 2000mah of charge. The reason many users feel that it is not delivering as promised is because they are calculating it wrong.

When putting your device on charge, the power back will be charging your battery + will be supplying power for your phone to operate (your phone is in on state..remember?) + much power is wasted due to heat that is caused by the phone's charging battery.

All of this power usage should also be...
()

First of all: I did not buy the product here. But felt like leaving a comment so that others can make a better judgement of the product.

The pack technically delivers around 2000mah of charge. The reason many users feel that it is not delivering as promised is because they are calculating it wrong.

When putting your device on charge, the power back will be charging your battery + will be supplying power for your phone to operate (your phone is in on state..remember?) + much power is wasted due to heat that is caused by the phone's charging battery.

All of this power usage should also be...
First of all: I did not buy the product here. But felt like leaving a comment so that others can make a better judgement of the product.

The pack technically delivers around 2000mah of charge. The reason many users feel that it is not delivering as promised is because they are calculating it wrong.

When putting your device on charge, the power back will be charging your battery + will be supplying power for your phone to operate (your phone is in on state..remember?) + much power is wasted due to heat that is caused by the phone's charging battery.

All of this power usage should also be taken into consideration while calculating the total power delivered. If you really want to confirm if your power bank is providing enough charge, just talk to an electrical engineer and get it tested with a multimeter. Am sure most of us will be satisfied when we realise the fact because I did the same.

An lastly, Please purchase only branded power banks.. Duplicate ones come with worse warranty and are dangerous as well.

Happy shopping on flippy..

86% of 36 users found this review helpful.
★★★★★
★★★★★
Avt Shubhash
21 Jan 2013
The 'certified buyer' badge indicates that this user has purchased this product on flipkart.com.
certified buyer
A Good product for all smartphone users

This Eveready UM 22 Power Bank is a good product for all smart phone users, this is pretty small and easy to carry and weightless, pure white color good made quality, a handy product for all users, it has a battery level indication, it automatically switch off when we are not using it for 25sec.

Negative:-
It does not have a charger for charging it, we have to charge it from PC or Laptop, or we have to use the charger of our smartphone to charge the device.

67% of 15 users found this review helpful.

Recent Top Reviews

View all
★★★★★
★★★★★
Aniket
08 Aug 2014
The 'certified buyer' badge indicates that this user has purchased this product on flipkart.com.
certified buyer
It technically delivers ~2200mah

The flipkart was as usual very good. It came in a well packed box and with a bubble wrap. The product was delivered to me in just 3 days... Awesome service Flipkart keep it up...

when putting your device on charge, the power bank will be charging your battery + will be supplying power to operate...
(View complete review)

★★★★★
★★★★★
Gaurav Mathur
06 Aug 2014
The 'certified buyer' badge indicates that this user has purchased this product on flipkart.com.
certified buyer
Good Product

Nice Product. However discharges as soon as 50% battery is charged. Not fir for High-End Smartphones but good enough for entry level smartphones. (View complete review)

★★★★★
★★★★★
Praveen E
06 Aug 2014
The 'certified buyer' badge indicates that this user has purchased this product on flipkart.com.
certified buyer
Battery Backup is worst.

Battery Backup is worst. I would not suggest to buy this product. It is not a Good Product................... (View complete review)

★★★★★
★★★★★
rehan khan
05 Aug 2014
used the product

I used the product for 1 week and then returned it has both advantage as well as disadvantages.

adv:
1. small in size can be carry in pocket.
2. fast charging within 1 hour
3. good for lower grade smart phone
4. in budget
5 brand of eveready

disadv:
1. can charge only once
2. no power supply ch...
(View complete review)

★★★★★
★★★★★
Prabhakar
29 Jul 2014
The 'certified buyer' badge indicates that this user has purchased this product on flipkart.com.
certified buyer
Good Product & Graet Performance

Powerbanks are best companion for all smart phone users, also it is the must have product. My review for Eveready UM 22 Power Bank as follows,

PROS:
1.Light weight
2.Portable
3.Easy to carry
4.Fast Charging
5.LED power level indication
6.Auto shutdown (The power button in this product used only...
(View complete review)

     Eveready UM 22 Power Bank for Smartphones (White) Price in India: Rs. 1060

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