This Rechargeable battery is a 12V 6800mah Li-ion Battery and it is specially designed for powering the system device which use 12V DC power. 6800mAh. 

Built-in ON/OFF switch to save power usage 
Input voltage: 12.6V
Input current:350ma (standard) / 1000ma
Output voltage: 12.6-10.80V
Output current:1-2A

The charger input: 100-240V AC,50HZ/60HZ 130mA  
The charger output :12V, 500mA 
 
Line interface specification 5.5 * 2.1 MM
Product life: Circulation charge and discharge are more than 500 times.

Package include:
1 X 12V DC 6800mAh Li-ion Battery
1 X AC Adapter

 Battery Charging Method:
1,Turn on the battery light "on":red. Connect the wall plug and the plug turns green.
2,Start charging,the plug indicator is red.When the battery is fully charged,the battery indicator remains red. the plug light turns GREEN.
3,Usually need 3-4 hours to complete the charge.

TIPS:
1,Please charge the battery before use.
2,Once the voltage drops to 8.5 volt or less,It means there is no more energy,you have to charge it.When the voltage is between 12v and 12.6v,it is full.
3,When the battery has no power, disconnect your product and charge the battery. If it is connected your product at this time, the indicator light is still on and the battery will not charge.
4,Please note that this battery is not suitable for charging your phone.