-This Samsung Galaxy S4 Extended Life Battery has a 5400mAh battery capacity which is 2X the power of your original Galaxy S4 battery.
-Double Galaxy S4 Battery Life: A must have for battery hungry S4 users that need a more battery life than most, to get through a full day's use.
-Highly tested certified Lithium Ion Battery Cells. Design for maximum performance and safety.
-Replace your original S4 battery with a more powerful, longer lasting battery.
Please Note: Extended life batteries are bigger and slightly thicker than a standard battery. Most third-party phone cases will not fit with the extended battery in. We have Samsung Galaxy S4 Extended Battery TPU Protective Cases, available here.
To learn more about this type of battery read our What is an Extended Life Battery? Check out our Extended Battery Calibration and Charging Tips to learn best practices to ensure the best battery life possible.
IMPORTANT: Even when the phone says the battery is at 100%, keep it on the charger all night. If you do not, the phone will show that it is draining quickly.
-Includes free custom Galaxy S4 back plate to accommodate the added thickness of the battery.
-High Capacity Galaxy S4 Extended Life Battery (5400mAh)
-Not compatible with the Galaxy S4 Active/Mini
-Quick Charge is not recommended with the Galaxy S4 extended battery. They are high capacity batteries and require a full 8-10 hour charging time, each time you charge them
-This extended battery does require an initial battery calibration period. Follow the instructions included in your package.
Unfamiliar with this type of battery?
Read our What is an Extended Battery Guide?
How long should my Samsung Galaxy S4 Extended Battery last?
Our extended batteries are twice the capacity of your original battery. But in terms of actual hours, the average user sees about a 75% increase in battery life compared to your regular battery. Some more battery conscious users have even received 40+ total hours of battery life. It depends on charging habits and your smartphone usage habits.
How to maximize my Galaxy S4 extended battery potential?
To get the full extent of your new battery, please follow the conditioning cycles and follow the instructions found in your packaging.
How long should I charge my extended life battery for Galaxy S4?
We recommend you charge your battery for at least 8-10 hours. Even when the phone says 100%, keep charging the full 8 hours. If you don't, the battery will show that it is draining quickly.
Your phone will take a little while to adjust to the new battery capacity. The phone will think that it is fully charged but it is not. The battery will slowly charge the rest of the way all night.
Is this Samsung Galaxy S4 extended battery bigger than a regular battery?
This battery is twice the capacity of a regular battery. To fit in all that power, the battery is slightly thicker than a regular battery. Your old back plate and existing cases will not fit the new battery size. After a few days or even hours you will adjust to the added weight.
Why is my Galaxy S4 extended battery not holding a charge?
The most common reason a battery doesn't seem to be holding a charge is due to the battery not being charged the proper amount of time. If you don't fully charge the battery it will show that it is draining quickly. The other reason could be a bad charger, a low-quality cable, or keeping your phone in a really high or really low-temperature environment.
My Galaxy S4 battery has a bulge in the middle. What does this mean?
There are a few reasons for this. If your battery is over a year old, it could mean your battery is seeing its last days. If you’ve only had it for several months, it could be due to improper charging. If you are still within warranty, please contact us at firstname.lastname@example.org.
My Samsung Galaxy S4 back plate (back cover) is cracked. How do I get a replacement?
If your battery is still fully functional but the cover has cracked, please purchase a replacement back plate. If you just received your battery and the cover arrived broken or cracked within a few days of use, please contact email@example.com