Replacement battery fits 5 IKUSI compatible models. Specifications: 1100mAh, 3.7V, Li-ion. Compatible with: T70/2, IK2, T70/2 iKontrol, PUPITRE IK2, Konecranes Mini Joystick Radio RMJ. Replaces: Ikusi BT11K. IKUSI replacement battery designed for Remote Control devices. Built to OEM specifications for reliable performance.