Replacement Battery for Acer UM09A31, UM09A41, UM09A71, UM09A73, UM09A75, UM09B31, UM09B34, UM09B71, UM09B73, UM09B7C, UM09B7D — 4400mAh/11.1V (Compatible with Asus B21N1329 7.6V/4000mAh)

Compatibility: Fits Asus part numbers 0B200-00840000, 0B200-00840100, 0B200-00840200, 0B200-00840400, 0B200-00840500, 0B200-00840600, 0B200-00840700, B21N1329, B21-N1329, C21N1329, and serves as a replacement for Acer models UM09A31, UM09A41, UM09A71, UM09A73, UM09A75, UM09B31, UM09B34, UM09B71, UM09B73, UM09B7C, UM09B7D. Technical specifications: Voltage 7.6V, Capacity 4000mAh (30.40Wh). Physical size: 227.86 x 70.47 x 7.58mm. Quality and performance: Built to high standards with a high-capacity circulation function, this battery is engineered to be an effective replacement for your original unit, providing reliable power and consistent operation.