We use Samsung / LG and or Panasonic cells in all our batteries. All the batteries are replaceable, however for Thor e bike, the battery is integrated into the frame, which requires the removal of a couple screws to get the battery out. We offer batteries with different capacities. Our 7Ah battery has a range of 35-55km on a single charge. The exact range depends on the riding circumstances. Our 10Ah battery can offer a range of up to 40-70km on a single charge. Furthermore, we also offer 20Ah battery with our Hunter Extreme, suitable for even longer rides. Our smaller batteries take roughly 3 hours to charge, while our bigger batteries can take up to 4.5 hours. We recommend charging the battery after every ride to ensure the battery stays at full capacity – as soon as the battery is full, our charger switches off to avoid using more electricity.