(Short) NiMH replacement GE Ericsson 19A149838PA battery provided by AtBatt.com is designed for use with the MRK I and MRK II two-way models. The 2W-EX8381 is designed to replace OEM part numbers: 19A149838PA, PKPA1X. • Chemistry: NiMH Capacity: 1800mAh 7.5V