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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1)Universal USB/AC Charger:
* This is an universal charger, the top panel could be slided and the metal contact pins are also moveable.
* You can slide it back and forth to fit virtually any size of Li-On batteries in the market.
* Please see our Title pictures for detail
* Here is the instruction
* To Charge the battery for Samsung Convoy 4 SM-B690V( Verizon ) , 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)New 1650mAh Rechargeable Li_ion Battery:
* Brand: Unbranded/Generic .
* High quality Li-Ion battery.
* Battery Type: Lithium Ion.
* Battery Capacity: 1650mAh .
* Voltage: 3.7V.
* Best Replacement for the original battery with comparable standby and talk time .
3)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

• * Package includes: New 1650mAh Rechargeable Li_ion Battery X 2
• * Universal Travel Dock USB/AC Charger X 1; Screen Touch Pen X 1
• * Compatible with: Samsung Convoy 4 SM-B690V( Verizon )
• * Accessory only, cell phone not included.
• * High Quality,100% Brand New.

* Package includes: New 1650mAh Rechargeable Li_ion Battery X 2SharpCost