Racepow Liion cell size 21700 with high capacity 6000mAh. The cell can be loaded with current up to 18A (3C) and is thus suitable for powering RC radios or for building power packs for drones with long flight times of around 30 minutes. The cell can be charged to 4.2V and discharged to 2.5V.
For more information, we recommend reading the datasheet.