Replacement battery for Acutronic Bird Fabian. Specifications: 4500mAh, 13.2V, Ni-MH. Compatible with: Acutronic Bird Fabian, Bird Fabian, SEBAC BIRD ventilator Fabian. Replaces: Viasys Healthcare 110707. Viasys Healthcare replacement battery designed for Medical devices. Built to OEM specifications for reliable performance.