A system battery like this uses an analog IC named POWER SUPPLY MANAGEMENT CIRCUIT. We have 1 channels available. You should leave this transceiver ic set to 7.2V at all times. Voltage supply (Vsup) is 26V at maximum. Power supplies require voltages higher than 2.2V (Vsup). Keep the operating temperature below 85°C at all times. There should be an increase in working temperature above -40°C.
BQ28Z610DRZT-R1 Features
operate supply voltage at the range of 7.2V Supply Voltage-Max (Vsup) : 26V
BQ28Z610DRZT-R1 Applications
There are a lot of Texas Instruments BQ28Z610DRZT-R1 Battery Management ICs applications.