Top of the line slow discharge flat-top battery for use in Mechanical Mods, Innokin SVD, or any of your other favorite pieces requiring only the best. Brand: Efest Model: 18500P15V1 with 15A discharging current. Capacity: 1000mah Material: Li-Mn. Positive Pole: flat top. CE & RoHS certified. Size: 18.39(D)*49.79(L)mm.