3.7V 2500mAh li-ion backup battery for DOOGEE DG300

• 3.7V 2500mAh li-ion backup battery for DOOGEE DG300
  Suit for DOOGEE DG300
  Compact size, easy for you to carry during travel
  Easily fits in your purse or bag
  Voltage: 3.7V
  Charging Voltage Limit: 4.2V
  Power: 9.62Wh
  Capacity: 2500 mAh
  Net Weight: 35 g / 1.235 oz
  Size: 69 x 52 x 4 mm / 2.717 x 2.047 x 0.156 inch
  Color: as shown in the picture

http://www.tinydeal.com/fr/doogee-1pcs-37v-2500mah-li-ion-backup-battery-for-doogee-dg300-p-134493.html