This package is specifically designed for Samsung Galaxy Amp 2 Model SM-J120A from Cricket as we stated in our listing.
There are many Samsung Galaxy Amp in the market, they all use different battery.
If you do not have Samsung Galaxy Amp 2 SM-J120A, this package is not for you. You do not need a special back cover to use this battery
This package is specifically designed for the cellphones we list here, if your cellphone is not in the list , then it's not for you.
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100% Brand New.
1)AC/USB Desktop Battery Charger :
* Quick charge with automatic constant current control prevents battery from over charging, short circuit, and electronic shock.
* Charge your cell phone battery without the phone.
* Also work with OEM (original) battery.
* LED charging light indicator. Turn red in charging, turn blue when done.
* Input: AC 100-240V 50/60Hz 150mAh.
* Output: DC 4.35V 350mAh ± 50mA.
* USB Port Output: 5.2V 800mAh.
* Use this charger to charge the stock battery as well, swap one out when the other dies.
2)New 2150mAh Rechargeable Li_ion Battery:
* High quality Li-Ion battery.
* Battery Type: Lithium Ion.
* Battery Capacity: 2150mAh .
* Voltage: 3.8V.
* The best spare battery for your phone.
* Our battery is sent out with little or no power, so please charge it for about 6 - 12 hours before using.
* This Battery could also be charged in the phone directly thru the cell phone charger.
3）Micro USB Data Sync Cable ( 3 Feet/1M ):
* Standard Micro USB Connector which could compatible with most devices that have Micro USB Port.
* New generic 2 in 1 Data/Charging USB Cable.
* Provides high-speed data transfer rates. Software is not included.
* Charging your Cell phone by connecting this charging cable to our Wall charger or USB car charger.

• * Package includes : New 2150mAh Rechargeable Li_ion Battery X 2 .
• * Travel Dock USB/AC Charger X 1; Micro USB Data Sync Cable 3ft X 1.
• * Compatible with: Samsung Galaxy Amp 2 SM-J120A( Cricket )
• * Accessory only, cell phone not included.
• * High Quality,100% Brand New.

* Package includes : New 2150mAh Rechargeable Li_ion Battery X 2 .SharpCost