Racepow 4000mAh 6S1P 10C is a Liion battery with an excellent price/performance ratio. The battery is suitable for 5-7" drones, where it can provide a long flight time. The advantage of Liion batteries is their higher energy density - they can offer higher capacity at a lower weight. The disadvantage, however, is lower discharge current. It is therefore necessary to handle the throttle with care. Liion batteries are thus especially suitable for calm flight - cruise or long-range. The minimum cell voltage is 2.5V, but we recommend landing with a small reserve at around 2.7V per cell.
Before use, read Safety guidelines for using Li-ion batteries.