| | |  | Signal Boosters | Home » » Samsung Sprint Epic 4G 3500 mAh Extended Battery + Cover | | | | | | | Description: | | High Quality Rechargeable Lithium-ion Battery and Cover for Epic 4g *Easy to carry, install and remove *The Best Replacement extended Battery for your Epic 4g *Extended battery life for Surfing the internet, playing videos, games, operating Bluetooth and playing music etc Battery Cover is included *BACK COVER Color:black Specificaton: *Power: 3.7V Li-ion 3500mAh Package include: *1X 3500mAh Extended Battery *Back Cover | | | Features: | |
• Compatible with Samsung Epic 4G but not the epic 4G touch.
| | | Product Details: | | | Package Length:
| 4.8 inches | | Package Width:
| 2.7 inches | | Package Height:
| 0.4 inches | | Package Weight:
| 0.15 pounds | | Average Customer Rating:
|  based on 65 reviews |
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Most "cell phone accessories" shipped worldwide. All "cell phones" ship from wholesale warehouse in USA.
| | Customer Reviews: | |
Average Customer Review:
 ( 65 customer reviews )
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Most Helpful Customer Reviews
36 of 41 found the following review helpful:
 Making the epic last all day... EPIC *EDIT*Mar 26, 2011
By RunninNGunnin13
I just got this here battery and battery cover yesterday and tested it out today while I was working.
Usually on a normal day of work my battery is dead after 9 hours of medium use. Today with the new bigger battery I put it to heavy use by listening to Slacker radio all day which constantly uses a data connection (heavy drainage). So far it looks like it lasted all day for me, tomorrow we shall see how it fares with normal use!
*EDIT* 3 weeks after initial use... the battery has begun to go from like 80% to just flatout shutting off super quick after around 10 hours... and then it will sometimes just not let me charge it back up, my phone will say "use supported battery" Will use it for another couple days unless it keeps doing this, then Im gonna be done with it.
21 of 23 found the following review helpful:
Better, but no solution.May 08, 2011
By Scott
I've had this battery for about six weeks now.
At first it did manage to extend the phone life through the end of a normal day, 20-30 text messages, checking email periodically, a few short calls, listening to a little on-board (not streaming) music... I would only consider myself a moderate-usage person and the original battery just couldn't even keep up with that.
Now, just six weeks later... with 4G turned off... neither can this one. I usually get to around 7:00 PM and it starts complaining that it needs to charge. That's about 5 hours better than the original battery, but REALLY folks? We can't keep a phone that is on standby for the majority of the day alive until sundown?
I can only imagine that some of my higher-usage friends would find it dead after about 3 hours.
I wouldn't necessarily count this as a product defect against the battery, though. I think the battery is probably doing the best that current battery technology can do for a glutton like the Epic. I predict Epic owners will soon be seen dragging a car battery around behind them on a cart everywhere they go.
BTW, I am from the tech industry and have hundreds of devices. I know good battery maintenance and have stuck to it, so it's not that. It's just that the Epic is extremely hungry, and even this higher capacity battery can provide little more than an appetizer.
8 of 9 found the following review helpful:
The answer...kinda...Mar 17, 2011
By Carl McIntosh
I love this battery, I can actually leave my house, use my phone and not have to worry about the battery dying. It lasts all day and then some! I highly recommend this battery for the epic 4g. The downside is that it does add some bulk to the phone, but to me it's totally worth it!
5 of 5 found the following review helpful:
 Easy Fix to extending your Battery Life on your Epic 4GJan 03, 2012
By Stephanie Freas
"sfreas2001"
This is off the android forum and has worked amazingly well for my phone :
The Airplane Mode Toggle Trick
One of the biggest drains on a mobile phone battery is when there is a weak signal and the cellular radio frequently scans for a signal. Not much can be done about this when reception truly is weak or there is no signal whatsoever. However, there is an insidious bug in the current Epic firmware that "tricks" the phone into thinking it does not have a signal, and causing the power drain while the phone is scanning for a good signal&emdash;even though it already has one!
You can tell if you are affected by this bug by checking your battery usage:
(Menu) ' Settings ' About phone ' Battery use ' Cell standby
On this screen you will see a line that reads "Time without a signal". If you've been in a good coverage area but the percentage on this line is high (say 50% or so) then you are suffering from the bug described previously.
Now, how to fix it? Until Samsung or Sprint provides us with an update, there is a simple trick that works around this bug. All you have to do is put your phone in airplane mode. Hold down the power button on your phone until the pop-up menu appears and then select Airplane mode. Wait approximately 15 seconds, then repeat the process to take your phone back out of airplane mode. For reasons that are not clear to anyone, this airplane mode toggle will prevent the false weak signal bug and the battery drain that goes along with it.
One important thing to note is that this workaround does not survive a power cycle. You will need to repeat this process every time you restart your phone.
2 of 2 found the following review helpful:
Great price and performance.Jan 19, 2012
By Rob
"Rob"
The almost daily gripe from my wife was that her phone was always dead. I initially purchased a backup stock sized battery for her, but neither would last a whole day and remembering to keep the backup one charged was a lost battle. I got tired of hearing it and after I had such an increase in longevity on my EVO 3D with an extended battery, I purchased this one for her Epic 4G. The initial conditioning is a bit of a pain, but this is required of any new battery and needs to be followed exactly. I used an external charger to charge the battery, that way she could still use the phone while getting this initial conditioning done. After the first discharge she got over 30 hours of use out of it. We now have it in for the second discharge and she is already at 26 hours and it is still showing 2/3 battery left.
I am very impressed with the performance of this battery and the quality of the included replacement back/case is great. It fits and looks like it came with the phone.
For the less than $10 price this is a no-brainer. I don't understand why phones don't ship with extended batteries to begin with.
See all 65 customer reviews on Amazon.com
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