This package is specifically designed for Samsung Convoy 4 Model SM-B690V from Verizon as we stated in our listing.
There are many Samsung Convoy in the market, they all use different batteries.
If you do not have Samsung Convoy 4 SM-B690V , this package is not for you.
You do not need a special back cover to use this battery
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100% Brand New.
1)New 1650mAh Rechargeable Li_ion Battery:
* Brand: Unbranded/Generic .
* High quality Li-Ion battery.
* Battery Type: Lithium Ion.
* Battery Capacity: 1650mAh .
* Voltage: 3.7V.
* The best spare battery for your phone.
* 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.
* Integrated microchip prevents overcharging and lengthens battery life.

• * Battery type: Li-ion; Voltage: 3.7V; Capacity: 1650mAh
• * Package includes: New 1650mAh Rechargeable Li_ion Battery X 1
• * Compatible with: Samsung Convoy 4 SM-B690V( Verizon )
• * Accessory only, cell phone not included.
• * High Quality,100% Brand New.

* Battery type: Li-ion; Voltage: 3.7V; Capacity: 1650mAhSharpCost