b style=color:FF9900;Package Contents: /bbrBattery x 2, Charger x 1brbrb style=color:FF9900;Compatible Models:/bbrNokia 822 for Verizon /810 T-mobile brbrb style=color:FF9900;Product Description: /bbrUnder normal conditions, the discharge capacity of battery is not less than 80% of the initial capacity after 500 cyclesbrBatteries do not contain Cadmium and can be rechargedbrBuilt-in overload & over-voltage protection; Certified by CE / ROHSbrbrb style=color:FF9900;Service Information:/bbrSince the date of sale within 2 months, the batteries can be returned with no reasons and all batteries enjoy 12-month free warrantybrIf there is any abnormal condition when using the product, please stop using it and contact with customer service centerbrbrb style=color:FF9900;Charger Instructions :/bbrPositive and negative of the charger are automatically recognizablebrFirst, please take a look at your battery; there are one mark positive contact and one mark - negative contactbrThen, take a look on the Onite charger; you can get two little movable prongs. As the positive and negative are automatically recognized by this charger, it doesn't matter which is contact on positive and which is negative; brThird, Pull down the bottom, and put battery in it. Adjust the charger prongs to match the polarities of the contacts on the battery. Release the part of the charger that moves. This will lock the battery in place. When the light on the charger turn on to blue, it means they are prepared to be charged; brFinally, plug the charger into the wall, the light becomes red, which indicates the battery charging. When the light turns to blue again, that indicates the battery is fully charged.