CoreParts Battery 3.7v 1200mAh Black, Battery, QTEK, Black, 3.7 V, Lithium-Ion (Li-Ion), 1200 mAh CoreParts Battery 3.7v 1200mAh Black. Product type: Battery, Compatible products: QTEK, Product colour: Black. Battery technology: Lithium-Ion (Li-Ion), Battery capacity: 1200 mAh