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. ====================================================================== 1)Universal Charger:
This is an universal charger, the top panel could be slided and the metal contact pins are also moveable.
* To Charge the battery for Samsung Convoy 4 ,allow the 2 metal pins on the charger to touch the 1st and the 3rd contacts of battery.
* For other batteries, it's not necessarily to be the 1st and 3rd though, please refer to the user manual.
* You should see the LED light turn blue on the charger, that means the contacts has been firmly connected.
* Now you could plug in the charger with the battery into a power socket.
* The LED Light will turn Red when charging the battery, turn blue to indicate the battery is fully charged.
2)High Capacity 1650mAh Rechargeable Li_ion Battery:
* Brand: AceSoft.
* Battery Capacity:1650 mAh.
* Voltage: 3.7V.
* Best Replacement for the original battery with comparable standby and talk time .
* Our battery is sent out with little or no power, so please charge it for about 6 - 12 hours before using.
* Keep an extra battery on hand for extend standby and talk times. 3)USB Data Sync Charging Cable(1M / 3 Feet):
* New generic 2 in 1 Data/Charging USB Cable.
* Charging your Cell phone by connecting this charging cable to our Wall charger.
4)Screen Touch Pen
* Soft touch tip material prevents scratching to.the screen very smooth tip
suitable for drawing,jotting notes,playing games and navigating on your device.
* Lightweight copper body
1.Smooth Movement.
2. Lightweight body (5g)
3.Finger Pressure

• "Authorized AceSoft Dealer"
• * Package includes : AceSoft 1650 mAh Rechargeable Li_ion Battery X 2.
• Universal Charger X 1,Screen Touch Pen X 1. USB Cable X 1
• Compatible With:Samsung Convoy 4 SM-B690V( Verizon )
• Accessory only, cell phone not included.

"Authorized AceSoft Dealer"AceSoft