These batteries have a shorter charging time and longer service life. Batteries do not have a “memory effect” so the phones can be charged at any user-friendly time. Charge faster - use longer - feel safer! Features:The battery is protected against overcharging, overheating and ignition.Optimally selected discharge parameters maximize battery capacity. Compatible mobile phone models:Nokia 5700.Nokia 7390.Nokia 6110 Navigator.Nokia 8600. Note: the list of compatible batteries and smartphones may be not complete. In case of doubt, always ask a consultant for advice. Compatible part numbers:Nokia BP-5M. Specifications:Capacity: 840 mAh.Type: Li-ion.Voltage: 3.7 V. Warranty: 12 months. Important information! Waste batteries and accumulators must be disposed of into specially marked containers.