Use this battery monitoring BQ2019PWRG4 charge controller from Texas Instruments to control the environment of your batteries. Tape and reel packaging will encase the product during shipment, ensuring safe delivery and enabling quick mounting of components. This device has a minimum operating supply voltage of 2.8 V and a maximum of 5.5 V. This device runs on Li-Ion|NiMH. This battery gauge has an operating temperature range of -20 °C to 70 °C.