Replacement battery fits 9 Inseego compatible models. Specifications: 3500mAh, 3.85V, Li-Polymer. Compatible with: M2000, M2100, 5G Mifi M2000, 5G Mifi M2100, M3000, M3100 and 3 more compatible models. Replaces: Inseego 1600007, Inseego 40123134, Inseego 40123133. Inseego replacement battery designed for Wireless Router devices. A direct drop-in replacement for the original battery.