Browse the top-ranked list of Smartphone Extended Battery below along with associated reviews and opinions.
Love it!...Pretty OK...great portable for my smartphone...I am not an electrical engineer, but in my opinion Li-Ion batteries charging speed is generally greatest from about 20% to 80% capacity (based on my iPhone 5).
mophie juice pack powerstation External Battery: This charger is powerful enough to recharge smartphones and tablets, extending your device's run time on the go. You can set how quickly the device charges with three power settings, and the compactness makes it easy to bring on business trips or vacations.
Stable cleaning...Happy Customer...This battery I received a few weeks ago fit in my iRobot and is working OK....Works as advertised.
Designed for use with iRobot 500 Series, 600 Series, 700 Series, 800 Series and Scooba 450 robotic vacuums, this iRobot Xlife 4419696 battery ensures long-lasting use for extended cleaning performance.
it is ok...v great....Bought product for my grandson' plays a lot of games on his phone and always loosing the charge, So far this product has worked well I have since bought several more to give out as presents....It really only holds half a Samsing note 3 charge, which isnt bad but not great when I can spend less than 20 more on amazon buy an Anker and charge my ipad and phone from dead to 100% 3 times before recharge.
Easily charge your device on the go with this PNY PowerPack T2600 USB rechargeable external battery, which is compatible with most USB- and micro USB-enabled devices. The 5V, 1-amp USB output and micro USB input allow fast, efficient charging.
LOVE IT....Works well....The charger works very well, I have a Galexey S7, and my charger will quickly charge my phone from 10% to fully charged without any problems...good battery - the only can is that the ports on the battery are very close together.
Features a USB port for simple connection to a wide range of devices.
Worth it!!...great replacement...I bought this for my note 4 n it works really well....although this is not genuine samsung OEM battery, this battery does it's job and I am happy with this battery!!!
Place calls, send texts and browse the Internet for longer with this UltraLast lithium-ion replacement battery. Compatible with the Samsung Galaxy Note 4, this battery delivers the power you need to use all your phone's apps. With its rechargeable design, this UltraLast lithium-ion replacement battery keeps your device ready for use wherever life takes you.
Great product overall...Great Backup...I recommend this .....................................bought this for a 10 day bus trip for power as we needed it, worked great for our cell phones
With a 7000 mAh capacity, this mophie powerstation plus 4X 99456VRP external battery enables you to extend the battery life of your compatible smartphone, tablet or other micro USB-enabled device.
Excellent product...Great power pack...Love that I only have one thing to keep up with....Love having the mophie to charge my phone when I am in the run.
Keep your smartphone, tablet or other micro USB-enabled device ready for use with this mophie powerstation plus 3X 99455VRP external battery, which features a 5000 mAh capacity to extend your device's battery life.
Price was a little less than others but still works great so far ... no issues at all...excellent choice...Fits perfectly for Samsung Galaxy Note4 ATT...Glad I tried this instead of OEM.
Get more talk time when you're away from your charger with this Lenmar replacement battery for the Samsung Galaxy Note 4. Let this 3.8-volt lithium ion battery revive your phone with its 3220 mAh capacity so you can keep on chatting and snapping photos. This Lenmar replacement battery installs easily into your smartphone.
I have to say the battery is OK,it does what it needs to do, is not GREAT but ok....Very pleased with the battery life....Luckily, this was a battery that worked and was able to save me from having to get a brand new phone....Saved me from having to buy a new phone.
Keep your compatible Samsung cell phone charged with this Ultralast CEL-I9500NF rechargeable battery, which delivers up to 3.8V of power. The lithium-ion battery offers overload protection to help ensure the safety of your device.
Works just fine....Seems to be just fine....Seems to be just fine.
Keep your cell phone charged throughout the day with this Ultralast CEL-I9600NF internal battery, which guards against power overload for added security. The lithium-ion battery is compatible with select Samsung cell phones and delivers 3.85V of power.
Great product...Overall good battery...good extra battery...Battery works well with my LG G3
Game, text and browse for longer on your LG phone with this UltraLast lithium-ion replacement battery. Compatible with a wide range of LG devices, this versatile battery delivers the charge your phone needs to keep going. Clearly labeled instructions on the side of this UltraLast lithium-ion replacement battery make installation quick and easy.
Works Great!...It was easy to order; the battery came fast....It has given my 1 year old phone new life, and retains power fairly well, while it is much cheaper than a new Samsung battery....Buying a new battery beats buying a new phone!!
Keep your device up and running with this Ultralast CEL-I9300 battery, which can replace select Samsung cell phone batteries. The rechargeable 3.7V lithium-ion battery with overload protection is designed to offer reliable power and ensure safe use.
all is as claim, work great all specs as claim.......this battery seems to be working alot better than a lower priced battery I purchased from a larger online competitor....this battery seems to be working alot better than a lower priced battery I purchased from a larger online competitor....this battery from best buy does not cause the phone to get extremely hot to the touch and the battery lasts for me most of the day.
Power up your Apple iPhone 5 with this Ultralast CEL-IP5 battery, which provides a 1440 mAh capacity and 3.8V of power for efficiency. Overload protection ensures your device is shielded from unexpected power surges.
I'm glad I did get it....The battery works great!...The battery works great!...It works wonderfully.
Keep your Samsung galaxy S 5 or other compatible cell phone operational with this Ultralast CEL-I9600HC-BLK battery, which delivers 3.85V of power. The rechargeable lithium-ion battery features overload protection to safeguard your device.
It's small and compact, easy to carry in pocket....Charges easily and gives you a good amount of battery...I'd like a 100% charge, but 60% is better than a sharp stick in the eye.
Keep your Apple® iPhone® 5, 5c, 5s, 6s or 6s Plus ready for use with this mophie Juice Pack Reserve 95034VRP external battery, which features a 1300 mAh capacity to deliver reliable power to your device.