Replacement battery fits 5 Brycus compatible models. Specifications: 2700mAh, 3.6V, Li-SOCl2. Compatible with: Blue Connect, Blue Connect Plus, Smart Water Analyzer, Blue Connect GOLD, Blue Connect GO. Replaces: Brycus P1704048-15, Blue Connect 7015C001. Brycus replacement battery designed for Smart Home devices. Built to OEM specifications for reliable performance.