About this replacement
Designed for Uniwill, Averatec devices. Compatible models include M30, M31, M30EI0, M30EI2, M30EI, M31EI1, M31EI, M31E, 4000, 4100, 4100AH, 4155. Replacement part numbers include M30-3S4400-C1S1, M30-3S4400-G1L1, M30-3S4400-G1P1, 63-UJ1024-0A, 63GUJ1024-2A, SA20071-01. Key specifications: 11.1V, 4400mAh, Li-ion.