Samsung Galaxy S4 Extended Life Battery (5400mAh)

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  • Our Extended Life Battery for the Galaxy S4 has a 5400mAh Battery Capacity which is 2X the power of your original Galaxy S4 battery
  • This is a high capacity battery for the Galaxy S4 Battery and you will see a 75-100% increase in battery life.
  • Each Extended Galaxy S4 battery comes with a special smart charging chip that protects from over-heating, over charging and promotes better battery performance and overall battery health..
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.
  • High Capacity Galaxy S4 Extended Life Battery (5400mAh)
  • *Not compatible with the Galaxy S4 Active
  • Bigger Battery, but features a slim design with minimal added bulk.
  • This extended battery but does require an initial battery calibration period. Follow our Extended Battery Calibration Guide to find out how.

How long should my Samsung Galaxy S4 Extended Life Battery last?

Our extended battery for the S4 is double the capacity of your original OEM battery. So you will receive twice the battery life of a standard battery with the same amount of use. Most users see at least a 75% increase in battery life, sometimes much more depending on usage and charging practices.

How to maximize my Galaxy S4 extended life battery potential?

To get the full extent of your new battery, please follow the conditioning cycles. When you first receive the battery be sure to charge it all the way up before using it. We recommend overnight. You will then need to discharge the battery and recharge fully again entirely. This process will allow your phone to adjust to the new battery capacity.

How long should I charge my new Samsung Galaxy S4 Extended Battery?

Depending on the size of your battery we recommend 9 to 10 hours of continuous charging. If your battery is 4500mah or higher, you would want to charge your battery for at least 10 hours. Even if your phone say 100% you still need to charge it the required time for a full charge.

Why is my Galaxy S4 battery not fully charged?

There could be many reasons your battery is not fully charging. The most common are not allowing the battery the full length needed to charge fully. Batteries 4500mah or higher would need to charge for 10Hr. If you can not fully charge your battery after 10+ hours, please contact us via email at

 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

My Galaxy S4 backplate (back cover) cracked. How do I get a replacement?

If your battery is still fully functional but the cover has cracked, please purchase a replacement backplate. If you just received your battery and the cover arrived broken or cracked within a few days of use, please contact

Samsung Galaxy S4 Extended Life Battery (5400mAh) has a rating of 4.8 stars based on 166 reviews.