A battery in good condition is crucial to protect your mobile phone instead of reducing its service life. This 2200mAh 3.7V BP - 4L Mobile Phone Li-ion Battery for Nokia E61i/E71/E90i/N810 (LD) is what we would like to strongly recommend to you. It features stable performance to protect your mobile phone， ensuring normal function without damaging your device. Its large capacity provides long working time， which will free you from frequent charging. With assuring quality there is no leakage， high heat release， so that very safe for use. Prepare one for more convenient use with your mobile phone! You won’t regret owning it!                                    Features            Safe and stable without damage to your mobile phoneLarge capacity to provide long working timeNo leakage or abnormal heat release with assuring qualityLightweight and add no burden to your deviceEasy to install and portable                                                             Specifications             Battery Type     Li-ion Battery    <br> Dimensions     (2.60 x 1.77 x 0.16)" / (6.6 x 4.5 x 0.4)cm (L x W x H)    <br> Rated Voltage     3.7 V    <br> Charge Limit Voltage     4.2 V    <br> Capacity     2200mAh    <br> Model     BP-4L    <br> Weight     1.13oz / 32g    <br> Applicable Models     Nokia BP-4L  E61i E71 E90i N810     <br>                                                             Package Includes            1 x Battery<br>