cell phone battery BL-4L Deatils ItemDecriptionUnitBattery typeLi-ionNominal Voltage3.7vModer NumberBL-4LCompatible BrandNokiaQualityOriginalNominal capacity400-1000mahCycle lifeMore than500HHStandy time120HWarrtany3month if you have interests in our product,please contact us,our sales can help you and send the price lists to you.if we are not online, please leave your name and contact details,eg,mail,msn etc.we will contact you in 24 hours.