ITEM NAME:2PCS 2S 3A 7.4 8.4V Li-ion 18650 Lithium Lipo Battery BMS Protection Board PCBOZ 2PCS 2S 3A 7.4 8.4V Li-ion 18650 Lithium Lipo Battery BMS Protection Board PCBOZ a.imagelink a:hover.imagelink {color:#d0679d;.Maximum Working Current: 3A. Main IC using original "precision" imported components. P+ P-: The connector of battery board. Internal Resistance: Less than 45m Ω. B+ B-: The interface of battery core.