Marval Power Battery for samsung Galaxy Tab 3 7.0 SM-T210R T210 T211 T217 T4000E kids T2105 Marval power, expert in battery field since 2007. Thanks for choosing us. Marval Power High Quanlity High Power battery 4000mAh Battery Specific Parameters: 3.7V & 4000 mAh. Battery Type: Li-ion Any issue pls contact to me to solve it Compatible with: Samsung Galaxy Tab 3 7.0 P3200 P3210 T210 T211