Racepow 8000mAh 6S2P 10C is a Liion battery with an excellent price/performance ratio. The battery is suitable for 7-9" drones where it can provide long flight time. The advantage of Liion batteries is their higher energy density - so they can offer higher capacity with less weight. However, the disadvantage is smaller discharge currents. So you need to be sensitive with the throttle. Liion batteries are thus particularly suitable for quiet flight - curise or long-range. We recommend landing at 2.7V per cell.