Plum sync 5.0- Original Li-Ion Battery -for model sync plum 5.0 (X 230) Plum sync 5.0 (X -230) Original Li-Ion Battery Optimum battery life with 1900 mAh, 3.7 V The battery is sold as a Brand New Unopened Item The Battery for Plum sync 5.0 (x-230) Model only