Replacement battery for Ezbook X1. Specifications: 3300mAh, 7.6V, Li-ion. Compatible with: Ezbook X1, Teclast F5, MaxBook Y11 H1M6. Replaces: Jumper 2666144, Jumper H-30137162, Teclast 2666144, Teclast H-30137162, MaxBook 2666144, MaxBook H-30137162. JUMPER replacement battery designed for Notebook/Laptop devices. Manufactured to exact OEM specifications.