bq2510x Single Cell Li-Ion Battery Charger ICs Texas Instruments bq2510x Single Cell Li-Ion Battery Charger ICs are highly integrated Li-Ion and Li-Pol linear chargers targeted at space-limited portable applications. The high input voltage range with input overvoltage protection supports low-cost unregulated adapters. The bq2510x has a single power output that charges the battery. A system load can be placed in parallel with the battery as long as the average system load does not keep the battery from charging fully during the 10-hour safety timer.