TI (Texas Instruments) BQ27505YZGT-J4 Battery Type: Lithium-Ion (Li-Ion) Function: Fuel, Gas Gauge/Monitor Lead Free Status / Rohs Status: Lead free / RoHS Compliant Mounting Type: Surface Mount Operating Temperature: -40?°C ~ 85?°C Package / Case: 12-UFBGA, WLCSP Series: Impedance Track?„? Voltage - Supply: 2.4 V ~ 2.6 V Other Names: 296-25794-2