Replacement battery fits 6 Technicolor compatible models. Specifications: 4500mAh, 3.7V, Li-Polymer. Compatible with: TCA203, TCA203COMG, iControl TCA203TWC, iControl TCA203, iControl TCA203COMG, Xfinity Home Security Touch Screen. Replaces: Technicolor BP-TCA-12/2510 SN, Xfinity GSP055771. Technicolor replacement battery designed for Security System devices. Designed for long-lasting power.