New Nokia BMS-2V Vibrating Extended Battery A Backup Power Source Increase Talk Time High Quality Nokia BMS-2V Vibrating Extended Battery. 20% restocking fee. Be prepared to stay in touch when your original Nokia BMS-2V Vibrating Extended Battery loses its charge. Nokia replacement batteries provide a backup power source and also give you the opportunity to increase talk time. Our items carry full manufacturer's warranty and issues arising from the same must be taken up within directly with the manufacturers.