Expert choice for external battery samsung galaxy s8

When it comes to choosing your external battery samsung galaxy s8, there are hundreds of different choices. In our review, weve considered all the various features youll need to know before buying the best external battery samsung galaxy s8. We hope that through this article, with our comparison table, in-detail review of each product can help you decide which one is your best external battery samsung galaxy s8.

Best external battery samsung galaxy s8

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Best external battery samsung galaxy s8 reviews

1. UGREEN Portable Charger 10000mAh, Dual USB Battery Pack Power Bank External Battery Charger Compatible for iPhone 11 Pro Max, XR XS Max X, 8 7 6 Plus, Samsung Galaxy S10 S9, Huawei Mate SE, Moto G6

Feature

High Capacity 10000mAh Mobile Power Charger: With 10000mAh capacity, UGREEN portable battery charger could repeatedly charge your phone or tablet without needing a power outlet, which is quite suitable for outdoor activities.
Super Light & Pocket Size: This portable charger only weights 187g, which is much more lighter than normal bulky power bank. It's also just as small as a credit card, which is quite portable to carry in pocket or package.
Charge 2 Devices Simultaneously: This external portable battery pack can charge 2 devices with a total output of 2.4A at the same time, such as iPhone XR, iPad Pro 12.9", Samsung Galaxy S8 Type C Phones, Huawei Mate SE and more Apple or Android tabet and smartphones.Please be kindly noted that it does not support Qualcomm Quick Charge.
Fast Recharge with Pass-through Charging: The external power bank support two types of input, a micro USB port and a type C port, which could be fully charged in 5 hours with a Micro USB cable or Type C cable (5V/2.4A USB wall charger is required). It also supports pass-through charging. There is no obstacle that you can play your device when the battery bank charging. This backup battery comes with multi-protection against overcurrent, overvoltage, overcharge,over-discharge, overheating.
Package Content: 10000mAh battery pack x1; Micro USB to USB A Cable x1; User Manual x1. If your phone is with USB C port, pls kindly use a USB Type C to USB A cable (not included).

Description

High Capacity 10000mAh Power Bank Unlike most high capacity but heavy and bulky power bank, this UGREEN one could be so light but with 10000mah, which could charge your iPhone 8 four times. It's a perfect backup battery for outdoor activities, such as travelling, hiking, barbecue, businss trip etc.Compatible with all smart phones and tablets, such as iPhone XR, iPhone X, iPhone 8 7 6 Plus, Samsung Galaxy S10 S9 S8, Huawei Mate SE, Huawei Honor 8, Moto G6 Light & Compact Portable Charger Power Bank This portable charger only weights 187g, which is much more lighter than normal bulky power bank. It's also just as small as a credit card, which is quite portable to carry in pocket or package. The hands-Free Silicon Strap could definitely help a lot if you want to hang it in your hand or your backpack. No need to take it out from your package repeatedly. Charge Two Devices at The Same time Two USB port perfectly avoid the embarrassment of charging only one device. Intelligent Detection and Charging Automatically No need to press the power button, it will detect and charge your Apple and android devices automatically after your device is connected. When they disconnect, the power bank will power off automatically. The total output of two USB port is 2.1A Specification: Campacity: 10000mAh Input: Micro USB Port, Max.5V/2.4A; Type C input Output: USB Port1:1A; USB Port2: 2.1A Battery Type: Lithium polymer battery Weight: 187g Note: 1.Please use 5V/2.4A wall charger to charge this power bank. 2.When charging 2 devices simultaneously, the battery charger will take priority to deliver the current to built-in lightning cable. 3.For charging Nintendo Switch,It can only power the console, NOT the Dock. The Package includes: 10000mAh battery pack*1 User Manual*1 Micro USB cable*1

2. NEWDERY Upgraded Samsung Galaxy S8 Battery Case Qi Wireless Charging Compatible, 5000mAh Slim Rechargeable Extended Charger Case Compatible Samsung Galaxy S8 (2017)-(5.8 Inches Black)

Feature

[UPGRADED TO SUPPORT QI WIRELESS CHARGER] - Qi-enabled wireless galaxy S8 power case allows you to charge the case with a wireless charging pad (not included). You can use any Qi wireless charging pad to charge the phone and the battery case together. (Only fit for regular S8.)
[EXTENDED 100% BATTERY LIFE] - Samsung S8 case battery with built-in 5000 mAh rechargeable Li-polymer battery pack, doubles your battery life. the galaxy S8 extended case is made of TPU and PC material. Great for travel and heavy users.
[CHARGE SIMULTANEOUSLY] - Simultaneously charge your S8 and case charging together with the original cable. Your phone recharges first, followed by the extended battery.
[360 FULL PROTECTION] - Newdery portable charging case for galaxy S8 adds only 0.36-inch thickness to your phone, provides superior full protection to the edges, prevent your phone from getting scratched.
[100% SATISFACTION GUARANTEED] - 12-month warranty ensures you are protected for the life of galaxy S8 external battery pack. You will be offered full assistance from our NEWDERY Customer Support Team.

Description

Newdery Special design Battery Case for Samsung Galaxy S8

Slim Galaxy S8 charging bank offers a high capacity of 5500mAh Li-Polymer rechargeable battery which can quickly charge your device in 2 hours.

Charging & Data Sync & Protecting 3 in 1
The durable S8 external battery case supports fast charge your S8 and the case at the same time.
Protects your S8 from scratches and other daily wear and tear.
Support data transfer between your phone and computer.

Efficient Dual Charging
This S8 charger case is equipped with Smart Dual Charge Technology, so it can charge your phone and the charging case at the same time.
Press and hold the charge button for 2 seconds to begin or end charging.

Charging the battery case
Connect the TYPE-C charging cable to the port at the bottom of the S8 power case. For best results, connect the cable to wall charger. Smart LED Indicator verify how much juice you still have
0-25% - Red
25-50% - Deep blue
50-75% - Green
75-100% - Light blue

Product Parameters
Weight: 5.2 oz
Input: 5V/1.8A
Output: 5V/1.8A
Capacity: 5500mAh
Dimensions: 6.6x3.1x0.7in

Package include:
1 x External Samsung Galaxy S8 Battery charger case
1 x Easy Installation User Manual

3. Power Bank Portable Charger 24000mAh Huge Capacity Battery Pack with 3 Inputs 2 Outputs Backup Battery Compatible Smart Devices Tablet Android Phone and Other Cellphones

Feature

1. 3 Inputs & 2 Outputs Of Power Bank: Plug two devices into the bank simultaneously then the bank will automatically match compatible charging speed.Type-C and Android Micro usb Input are available.
2.Huge Capacity For Portable Charger: 24000 mAh Ultra huge capacity can provide your phone or other devices with endless power so that you will have no worry about the electricity sources when you are outside.
3.Battery Pack With Bright Flashlight: Equipped with flashlight function which may be used for illumination in the dark.Double press the power button to turn the light on and do the same to shut it off as well.
4.Backup Battery's Smart LCD: Accurately displays the remaining power from 1% to 100% and the current's voltage & ampere.
5.What You Get From Power Pack: 1* 24000mAh power bank, 1* USB cord, 1* user manual, 1* after-sales card, 24* months warranty, lifetime technical issues support.

Description

24000mAh Power Bank Portable Charger Huge Capacity With 3 Inputs & 2 Outputs Description:

Feature: 3 Inputs Available
Choose either of Type-C (USB-C) & Micro USB & Light-ning INPUT to recharge power bank. Save your business of taking other cords.

Feature: Automatical Charging 2 Devices
Automatically identify your device and then deliver the suitable electric current.Built with 2 USB Output Ports that can charge 2 devices simultaneously.

Feature: LED Flashlight
Double pressing the power button to turn the light on and doing the same to turn it off. Provide you with necessary help when you are in the dark.

Feature: Smart LCD
Equipped with Smart Indicator Screen, that displaying the proportion of the remaining power and the status of charging and being-charged

Feature: Multi-Protect Safety System
Adopts the most avdanced Saftety System including Overcharge & Over-discharge & Overvoltage & Overcurrent & short circuit protection. Keep you and your devices safer.

Specifications
Capacity:24000mAh
Color: BLACK
Input Voltage/Currunt: 5V 2.0A
Output Voltage/Current: 5V 1A/5V 2.0A
Size6.5in*3.2in*0.8in
Weight: 0.74 lb
Shell material: ABS+PC Flame resistant material

What is Included
1 x 24000mAh Power Bank
1 x Micro USB Cable
1 x User Manual
1 x After-Sales Card
2 years warranty
Lifetime Q&A Support

4. Metecsmart Power Bank, Cell Phone Portable Charger, 5v 10000mAh 10000 USB External Backup Lightweight Travel Blackweb Thin Slim Wallet Mobile Rechargeable Battery Pack for iPhone 11 Samsung Android

Feature

Ultra-slim Design Ultra-slim dual output Fast Charge portable charger power bank 10000mah for all cell phones,iPhone X max XS XR 7 8 6/ Plus/ 5/ SE, iPad, Samsung Galaxy, LG,Google Pixel,MP3 MP4 Player, Nintendo Switch,with 4 LED indicators to show remaining capacity.
Charge for 2 Devices SimultaneouslyOutput current can be reach 3.1A (Max), One output is 2.1A, another output is 1.0A; Quick charging for all cell phones with 2.0A adatper;Input current is 2A, Quick charging powerbank itself with 2A adapter.
Ultra-safer Li-polymer Cell10000mAh ultra-density safer Li-polymer cell be used, make sure the Metecsmart portable charger ultra-slim and easy to carry and double safer than Li-ion cell battery pack.
Rapid Recharge Even with a huge 10000mAh External battery, it can only take 6-8 hours with a USB input port of 5V-2.0A to recharge, which means that it double faster than normal 1.0A chargers.
What's You Get 1*10000mAh External Battery Pack, 1* USB Charging Cable, 1*User Manual,worry-free 12-month warranty and friendly & outstanding customer service.Any question with the item, please email to: [email protected] ,we will reply within 24 hours.

Description

Our Advantage:

Tested by our own manufacturer to match and exceed specifications of OEM products.

Metecsmart focus on providing high quality power bank products and friendly & outstanding customer service, looking forward to your support and welcome your positive affirmation.

Compact Design

The innovations technology of battery cell allow us to pack more power into this tiny yet powerful power bank. With only 0.6 inches thickness,

as slim as your phone which enable you put it in your backpack or pocket wherever you go.

The Metecsmart A- 627KN high-speed ports. So whether you're charging an Apple or Android device, this may help save your charging time.

Smart USB Output Technology

Build with 2 Port USB Port, the power bank can charge 2 devices simultaneously. Automatically identify the type of device

and deliver the suitable electric current for your device like the original power adapter by Metecsmart Smart Technology.

Specifications:

Battery type: Li-polymer battery cell

Dimension: 5.4*2.83*0.62inches/131*67*15mm

Weight: 8.46oz/235g

Capacity: 10000mAh

1x Input Ports : 5V-2.0A(MAX)

2 x Output Ports: 5V-2.1A(MAX)

What is including:

1 x 10000mAh Power Bank

1 x USB Cables

1 x User Manual

Worry-free 12-month warranty and friendly &outstanding customer service

Notice:

The Portable Power Bank is not full charged When it is used for the first time, it is normal, please charge it fully before use.

When the power bank is not recharging, please click the power button or reinsert the cable to activate the Charger.

5. RUNSY Samsung Galaxy S8 Plus Battery Case, 6500mAh Rechargeable Extended Battery Charging Case, External Battery Charger Case, Backup Power Bank Case with Kickstand (6.2 inch)

Feature

Charging and protecting, 2 in 1 function. Super fast charging. Built-in short circuit and overcharge protection.
Integrated power switch allows you to turn on/off the battery case quickly. You need to remove the battery case if you want to sync the phone to the computer.
Slim design with accurate cut-outs. It's perfect for traveling and outdoor activities. You can also easily access to the buttons and ports of thephone without removing the battery case.
Made of high quality material, unique and comfortable tactile impression. 360 Full Protection. Protects the phone from bumps, scratches and dust.
Built-in 6500mAh lithium polymer battery, high efficiency and high conversion rate. Ideal for long distance journey and business trip.

Description

*Tips* - Easy Removal Steps
1. Hold the top of the battery case with your thumb and forefinger.
2. Slightly push the phone forward with your thumb.
3. Lift up the phone. Note: Do not tilt the phone at a large angle in case of breaking the connector.
4. Please refer to the 7th picture on the product detail page regarding the removal steps.


RUNSY Samsung Galaxy S8 Plus 6500mAh Battery Case: charge without removing the battery case. You could charge another device through the USB output. You need to remove the battery case if you want to sync the phone to the computer.


Specs:
Capacity: 6500mAh
Product dimension: 164*76*19 mm
Net Weight: 165g
Charging time for the battery case: 9 hours


User tips:
The correct way to charge the phone and battery case.
If you charge the battery case with the phone installed while plugged in, you need to press the power button on the back of the battery case. The phone will be charged after you press the power button. The battery case will be charged next after the phone is fully charged. The charging time for the phone is 2 hours. The charging time for the battery case is 9 hours. It will take 11 hours for both of them to be fully charged in one cycle.


What's in the box:
1 x RUNSY Samsung Galaxy S8 Plus 6500mAh Battery Case
1 x User Manual


Note:
1.Charge the battery case fully and deplete the power of the battery case completely at the first use.
2. Use the original charger and cable that come with the phone to charge the battery case as generic or non-original chargers and cables usually cause the battery case to malfunction.

6. HETP Galaxy S8 Battery case 6000mAh, Protective Rechargeable External Battery Pack for Samsung Galaxy S8 Charging Case Portable Backup Power Bank for Galaxy S8 (5.8 inch) -Black

Feature

SUPER LONG CHARGING LIFECompatible Samsung Galaxy s8 ONLY This Samsung galaxy S8 charging case has 6000mAh powerful provide extra standby time to your Phone.The best and the first choice for the outdoor power companion, enjoying your day and do not worry the battery run out suddenly.
ADVANCED SYNC-THROUGH TECHNOLOGYYou can simultaneously charge your Phone and Samsung Galaxy S8 battery case charger together ,conveniently sync your Phone to your Mac-book, PC or laptop without having to take the battery case off.
EASY INSTALLATION AND USEEasily insert your Samsung Galaxy S8 into the lightning output port .The Samsung Galaxy S8 Protective extended battery cover uses a lightning input port to enable recharging and data transfer. 4 LED battery level indicator that lets you know exactly how much power you have (0--25%--50%--75%--100%); Power switch allows you to switch on/off the Samsung Galaxy S8 power bank.
PROTECTING AND CHARGING 2 IN 1High quality Samsung Galaxy S8 battery cover with 360 scratch-guard, dual layer protection to protect your Samsung Galaxy S8 from scratches and other daily wear and tear. Internal safe chips prevents the Wireless Charging Power Case short-circuiting, overheating and over-charging.
18 MONTH HETP WARRANTYEach of Samsung Galaxy S8 portable power case has passed strict inspection before they leave the factory.If there is any problems or you are not satisfied 100% with HETP battery case ,please feel free to contact us at once. Enjoy this absolutely RISK FREE purchase by clicking the yellow Add to Cart button.

Description

Features:
1.Compatible with Samsung galaxy S8 (Not works on Samsung galaxy S8 plus )
2.4 LED power indicators shows power status of external battery case(25%--50%--75%--100%).
3.ON/OFF Button for Optional Power Output Control,Samsung galaxy S8 battery use Grade A+ batteries with CE and RoHS certification.
4.Full protection to corners and sides, protecting your Phone from drops and impacts.
5.Smart Battery Case,the battery case intelligently stopping charging when your Phone is 100%.Protecting your phone battery.

How to charge your phone ?
1.Just fully put your Samsung galaxy S8 into the wireless battery case.
2.Pressing the power button on the bottom of the Samsung galaxy S8 battery case, the case will start charge your Phone.
3.Pressing the power button of the Samsung galaxy S8 battery case again, the case will stop charging.

Specification:
1.Capacity: 6000mAh
2.Input: 5V/1A
3.Out put: 5V/1A
4.Sleek, Low-Profile design; Rechargeable up to 500 times.
5.Weight: About 100g.

Customer Must Know:
1.This battery case is just fit for Samsung galaxy S8, Not fit for others.
2. NOT Compatible with Apple ear pods with Lightning connector or traditional 3.5mm headphones. Only Compatible with Apple air pods or other Wireless Bluetooth Headphone accessory.
3. The lightening cable is NOT included.

Package Included:
1 x 6000mAh Samsung galaxy S8 External Rechargeable Battery Case Black
1 x User Manual

CONTACT US:
If for any reason, you are not satisfied with your purchase, Please contact our friendly customer service through the ""Contact Seller"" feature and we will be happy to assist you !

Click the Yellow "Add to Cart" Now!! Experience Samsung galaxy S8 6000mAh extended battery case charging case at anytime and anywhere.

7. CASESSARY Galaxy S8 Battery Case w. Quick Charge 3.0, Protective Charger with Priority Charge + Dynamic Power Management, 4500mAh Portable External Battery Pack Compatible w. Samsung Galaxy S8(Black)

Feature

STAY CHARGED ANYWHERE: World's 1st and ONLY battery case compatible with Qualcomm Quick charge 3.0, with a long last 4500mAh Li-Polymer battery (>800 Life Cycle). Built into perfection with all features you need.
FULL 360 PROTECTION: Designed with perfectly raised bezel, ergonomic anti-slip pattern, cushioned frame and rugged outer-shell. Provides superior protection against drops, hard falls and scratches. Plus premium patterned surface with anti-slip and fingerprint proof features.
PRIORITY PASS-THROUGH CHARGING + OTG DATA TRANSFER: Your phone will receive full-charge 1st and then begin to automatically re-charge the case in less than 2 hours. Plug-and-Play technology allows easy data-synchronization without having to remove the case.
DYNAMIC POWER MANAGEMENT: Protect phone's battery life by optimize the charging speed when battery is empty or close to full. Sophisticated protective logic+ temperature sensor, prevents your device from over-heating / over-charging. Hex LED lights indicate an accurate power level.
LIFETIME WARRANTY: Money Back Guarantee and Extended 2 Years Warranty. Upgrade to Lifetime Warranty by following @CASESSARY on Facebook, Twitter and Instagram.

Description

The CASESSARY Galaxy S8 battery case provides you QC 3.0 fast charging and full protection. Made with ergonomic anti-slip and durable design to protect against drops, bumps, scrapes, scratches and hard falls.

Features:
1. Build-in high-capacity lithium-polymer battery, double the standby time for your Galaxy S8.
2. Premium material to protect your phone, charging and protecting 2 in 1.
3. USB OTG data support, enjoy fast data transfer without removing the battery case.
4. Integrated safety features with temperature control, effectively avoid short circuit or overcharge even under extreme conditions.

Note:
Please use original charger or compatible QC 2.0/3.0 charger to ensure quick recharging speed.
Do not place battery case to fire / excessively hot environment.
The surface of this battery case may gradually become warm when charging.
If there's any problem when using our devices, please kindly contact us with the contact info enclosed on the service card, we are always here to help.

Specifications:
Compatibility: Only for Samsung Galaxy S8 5.8 inch ( Not compatible with Galaxy S8 Plus )
Battery Capacity: 4500mAh
Battery Type: Li-polymer
Input: DC 9V-1.67A, 15W
Output: DC 9V-1.4A, 12.6W
Material: PC+ABS

Package Contents:
1x 4500mAh Galaxy S8 Battery Case
1x User Manual

8. Portable Charger 20000mAh Quick Charge 3.0 Alongza Cell Phone Battery Charger External Battery Pack Power Bank Compatible with iPhone Xs XR X 8 7 6 iPad Samsung Galaxy S9 S8 S7 & Android Phones,Black

Feature

Excellent High Capacity - 20000mAh portable power bank with high-quality Li-ion battery which the life cycle time is more than 500 times. Besides this recharging pack can charge iPhone 7 for 7-time, Galaxy S6 for 5-times, iPad Mini for 3-time.
For Optimal Use - 2-port phone charge QC3.0 18W & 5V/2A output allows for Apple and Android smartphones, tablets (including the Nexus 7) and other USB-charged devices except for the iPod nano, iPod Classic, HP TouchPad, Dell Venue 11 Pro, Asus tablets and some GPS and Bluetooth devices.
Safety System - More safety Supports over-charged, over-discharged, over-voltage, over-current and short circuit protection.Surge protection, short circuit protection and more advanced safety features keep you and your devices safe. Intelligent Safety Protection - Automatic shutdown if a short circuit or overload output occurred while unit is charging
LED Flashlight - Turn on/off the LED flashlight by double click the power button. Perfect for camping, travel, business trip and more. It will be good help in an emergency.
What you will get - 20000mAh power bank, USB charging wire, 12-momth warranty quality guarantee, 24-hour friendly customer service.

Description

Power Bank 20000mAh - 2 in 1 Backup Charger with Backup Flashlight

High Capacity - Enough power to keep you going for days. Charge your iPhone 7 about 7 times, Charge an iPhone 6 over 5 times, an iPad Mini 3 times, Galaxy S7 for 5 times, a Galaxy S6 4 times.

High-Speed Charging Technology - QC3.0 charge combine to ensure your devices charge at their their fastest possible charge speed.

Enormous 3.0A Output - Max Output of 3.0 amps provides enough power to simultaneously charge any combination of devices at full speed.

For Optimal Use - Compatible with Apple and Android smartphones, tablets (including the Nexus 7) and other USB-charged devices except for the iPod nano, iPod Classic, HP TouchPad, Dell Venue 11 Pro, Asus tablets and some GPS and Bluetooth devices.

Safety System - More safety Supports over-charged, over-discharged, over-voltage, over-current and short circuit protection.Surge protection, short circuit protection and more advanced safety features keep you and your devices safe. Intelligent Safety Protection - Automatic shutdown if a short circuit or overload output occurred while unit is charging

At Alongza, we believe in our products. That's why we back them all with an 18-month warranty and provide friendly, easy-to-reach support.

9. Galaxy S8 Plus Battery Case 6500mah,Rechargeable Charging CaseforSamsung GalaxyS8 Plus Backup Power Case Samsung S8+ Battery Cover-Black

Feature

GALAXY S8 PLUSThis Galaxy S8 Plus rechargeable battery case 6500mAh can effectively provide 140%+ extra battery life to your Galaxy S8 Plus phone.The best and the first choice for the outdoor power companion, enjoying your day and do not worry the battery run out suddenly. Note: It doesn't fit for Galaxy S8.
SYNC&CHARGINGYou can conveniently charge and sync both the battery pack and Galaxy S8plus to your PC, laptop without having to remove the battery cover.
360 PROTECTION The Galaxy s8+ battery charging case is not only a portable charger case, but also a 360 protection for cellphone from scratches and other daily wear and tear. Internal high quality chips also protect your Galaxy s8 plus from overheating, short-circuiting and over charging.
HOW TO USE Slide your Galaxy S8 PLUS all the way into the bottom section of the case and make sure the case's connector is fully inserted into the phone. Press the LED status button for about three seconds.
WHAT YOU GET 1 x Galaxy s8 plus Battery Case 6500mAh , 1 x User Manual. Also you will receive 12 months warranty and 30-days hassle-free return service. Just feel free to contact us first if you have any product problem.

Description

Features:
1.Compatible with Galaxy S8 Plus / Galaxy S8+ [6.2inch] (Not works on Galaxy S8.)
2.4 LED power indicators shows power status of external battery case(25%--50%--75%--100%).
3.ON/OFF Button for Optional Power Output Control Galaxy S8 Plus / Galaxy S8+ battery case use Grade A+ batteries with CE and RoHS certification.
4.Full protection to corners and sides, protecting your Galaxy phone from drops and impacts.
5.The battery case intelligently stopping charging when your iPhone is 100%.Protecting your phone battery.

How to use?
1.Just fully put your Galaxy S8 Plus into the wireless battery case.
2.Pressing the power button on the bottom of the Galaxy S8 Plus battery case for 3 seconds, the case will start charge your Phone.
3.Pressing the power button of the Galaxy S8 Plus battery case in 3 seconds again, the case will stop charging.

Specification:
Capacity:6500 mAh
Material:Lithium-ion Polymer
Input:5V/1.8A
Output:5V/1.8A
Case recharging time: About 4.5 hours
Dimension: 6.48 * 3.00 * 0.68 inches
Weight: 4.94 oz

Customer Must Know:
1.This battery case is just fit for Galaxy S8 Plus / Galaxy S8+ [6.2inch], Not fit for others.
3. The charger cable is NOT included.

Package Included:
1 x 6500mAh Galaxy S8 Plus Battery Case Black
1 x User Manual

Conclusion

All above are our suggestions for external battery samsung galaxy s8. This might not suit you, so we prefer that you read all detail information also customer reviews to choose yours. Please also help to share your experience when using external battery samsung galaxy s8 with us by comment in this post. Thank you!