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NewNow 4200mAh Backup External Battery Case for Samsung Galaxy S5

Brand: NewNow
SKU# MP31927
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Product Description

NewNow 4200mAh Backup External Battery Case for Samsung Galaxy S5 


1. When press the "On/Off" button, four LED indicators will flash one by one immediately. After that, it shows the actual power status of external battery.

2. Recharge this external battery charger before it shows 25% power left. In order to protect your mobile phone, this charger was programmed to stop charging with 25% power left. Don't worry about that. Just take it off and recharge the charger.

3. Remember to detect the actual power left before you use or recharge this product.


This NewNow battery case has a unique design with perfect dimension that makes it among the best in the market. You need to know that it is very lightweight and convenient to carry whenever you go. It is very easy to install and remove off the battery. This means that you will always get a protective case which will make your phone very powerful.

This NewNow case often works as both an extended battery and a protection case. This means that you will always redefine the looks of your phone to a new level whenever you want it.

This makes it also very cheap whenever you are buying it better than many other options that people often buy in the market.

The NewNow battery case uses USB output that will definitely make your life much easier whenever you use it. It has a 4 LED that indicates its power status using an LED flashlight. What's more, you will find an NewNow Logo in the back which helps charging in the dark. You should never forget that it is suitable when charging your Samsung Galaxy S5. You will always save time when using it.


• New external backup battery for Galaxy S5
• Extends the battery life of your phone for hours, great choice for business and outdoor activities
• Features a built-in stand, offers a comfortable angle for movies watching, game-playing, web-surfing
• Stylish LED indicators help you easily gauge what your current power level is
• Lithium polymer capacity: 4200mAh
• Input: 5V/1A
• Output: 5V/2A
• Color: Black,White
• Size: 153*74*16mm / 6*2.9*0.63 inches
• Weight: 102g / 3.61 ounces

Compatible with:

Samsung Galaxy S5

Package Includes:

1 x NewNow 4200mAh Backup Battery Case for Samsung Galaxy S5






Certification CE, ROHS, FCC
Battery cycle life >500 times
Unit Dimension 153*74*16mm
Charger time 3-5hours
Output 5V,2A
Input 5V, 1 A
Capacity 4200 mAh
Battery Type Ni-MH
Product Type Samsung Battery Case
Weight: 102.00 Grams


Can I use my USB cable other than that came along with my NewNow® battery charger case?


NewNow® battery charger case’s efficiency?

Each NewNow power bank case loses power because of circuit resistance and voltage conversion.

As the industrial standards say, each power bank case is labeled based on its raw cells capacity rather than efficiency. We follow this standard like other companies.

How long will the NewNow® battery charger case lasts if it’s not in use?

Most of our power bank case’s static power consumption is less than 100uA, which means it will take 3.5 ~20 years to use up the battery.But the chemicals inside the li-ion cells will become less active as time goes by. Most external batteries will die in two years without use.

How to extend your power bank case’s life?

1. Remember to charge and recharge your battery at least once each 3-4 months.

2. Never overcharge or over-discharge your battery. You’d better keep it charged between 5% and 95%.

Can NewNow® battery charger case be used for overseas travel?

Yes. Make sure the USB adapter you take with is compatible with the voltage of your destination country. Each adapter’s voltage input is printed on its surface.

Can I take a NewNow® battery charger case on board airplanes?

Yes, each NewNow power bank case can be taken on board airplanes safely and legally.Listed below are the related requirements.

Quoted from Federal transportation security rules (Effective January 1, 2008):Lithium ion batteries (a.k.a.: rechargeable lithium, lithium polymer, LIPO, secondary lithium).

-Passengers may carry consumer-sized lithium ion batteries [no more than 8 grams of equivalent lithium content or 100 watt hours (wh) per battery].

This size covers AA, AAA, 9-volt, cell phone, PDA, camera, camcorder, Gameboy, and standard laptop computer batteries.

-Passengers can also bring two (2) larger lithium ion batteries (more than 8 grams, up to 25 grams of equivalent lithium content per battery) in their carry-on. This size covers larger extended-life laptop batteries. Most consumer lithium ion batteries are below this size.

What if I lose the accessories came with my power bank case?

Please make sure if you have got an extra one or contact us at

NewNow® battery charger case’s compatibility

NewNow Battery case and external batteries are 100% compatible with Apple and Android tablets and smartphones

Can it charge other digital devices and be charged simultaneously?


Can I charge multiple digital devices at the same time?


What can I do if the NewNow® battery charger case fails to recharge?

a. Make sure that the adapter is connected correctly.

b. Make sure that the USB cable is connected correctly.Please contact us via email at

What can I do if the NewNow® battery charger case fails to charge my devices?

Check if the voltage is compatible with your digital device’s charging voltage.

How long does it take to charge my NewNow® battery charger case fully?

3-5 hours.

Can the powerbank rechargeable case and my phone be recharged at the.same time?


Write a Review

User Reviews

Showing reviews 1-10 of 26 | Next


Everything works great for me, very satisfied!

Everything works great for me, very satisfied!


I like this case

I like this because when traveling, you don't always have a charger handy and it might be hours before you're back at your vehicle or room. So this way, you simply use the case and it charges for you – kind of like a two part helpfulness.


They work perfect no issues

They work perfect no issues. I bought these for when we went to Disneyland and knew we would kill our phones by taking pictures and these cases kept our phones charged so we could catch great memories! !


Love it thanks alot comes in handy when no plug is around

Love it thanks alot comes in handy when no plug is around


The battery was able to charge the phone fairly quickly.

I was able to run all day with this case, turning on the battery to charge when I got down to 50%. The battery was able to charge the phone fairly quickly.


I'm very pleased with my case.

I'm very pleased with my case. It works great!


This case is perfect.

This case is perfect. I am someone who uses up my battery quickly. The charge will last more than a full day and is fast and very reliable. This case offers pretty good protection for the sides and back. Overall I am very pleased with this case.


I use this case everyday.

I use this case everyday. I get about a charge and a half out of it. Gets me through the day. Love it! I've dropped it several times and all I've had to do was snap two corners back in. No big deal. Feels great in the hands. Is nice and soft. The sound is awesome. Love it! Highly recommended to anyone constantly on the go!


This case is exactly what I wanted and expected.

This case is exactly what I wanted and expected. Its true to color and has a slightly rubberized feel so it doesnt slide out of your hand. Its slim and light enough to not feel bulky. It has four little lights on the back that light up when its plugged in charging or when you press the power button so you can see how much battery you have left.


I would highly recommend !

I've been using the battery case for several days now and am quite pleased with the extended time between having to plug in to charge. I've gone a full day and a half of significant iPhone use without having to plug in.I would highly recommend !

Showing reviews 1-10 of 26 | Next