Replacement battery fits 10 CipherLab compatible models. Specifications: 750mAh, 3.7V, Li-ion. Compatible with: Metrologic MS5500, Metrologic MS5500 Optimus S, Metrologic SP5500, Metrologic MK5502, Metrologic MK5502-79B614, Metrologic MK5502-79B639 and 4 more compatible models. Replaces: Metrologic BA-80S700, Metrologic 46-00311, CipherLab 100845, CipherLab 33-KB1B3770000L3, CipherLab BA-80S700…