Battery. Brand compatibility: Zebra. Black. Lithium Polymer (LiPo) 4950 mAh 38.1 Wh. Features. Battery life (max). 9 h. Battery technology. Lithium Polymer (LiPo). Battery capacity. 4950 mAh. Battery voltage. 7.7 V. Product colour. Black. Compatibility. ET51, ET56. Brand compatibility. Zebra. Type. Battery