Fenix Rechargeable 21700 Li-ion Battery - 4000mAh - Fenix Store
SLS LiPo Akku XTRON, 5S/4000mAh, 18.5V, 30C/60C, 147x45x37mm, 521g | Lithium Polymer batteries (LiPo batteries) | Batteries, LiPo-equalizers and accessories for batteries | All you need for electric flight