Keep your SUBLUE Navbow running longer. The 10,670 mAh / 158 Wh battery pack delivers up to 60 minutes of continuous power and recharges in about 3.5 hours. Safety warning: Risk of fire or burns. Do not open, crush, heat above 65 °C, or incinerate. Charge only with a 16.8 V / 3.3 A charger at 20 °C ± 5 °C.