Replacement battery fits 44 Doro compatible models. Specifications: 1200mAh, 3.7V, Li-ion. Compatible with: Micromax E390, Micromax X335, Switel M160, Spice C5300, Spice S3636, Spice QT-52 and 38 more compatible models. Replaces: Micromax BT-214, Wintec BT-N3650, Spice SIB-11, Spice SIB-16, Doro RCB215, Doro RCB405 and 3 more. Doro replacement battery designed for Mobile/SmartPhone devices.