The package that has it is the Strip package.It is contained in a package named 54-WFBGA, WLBGA.The device is mounted with mounting type Surface Mount.It is recommended that the temperature be set to -40°C~85°C TA in order to ensure reliable performance.It functions by using an analog IC called POWER SUPPLY SUPPORT CIRCUIT.The base part number MAX14748 can be used to locate related parts for this device.As you can see, it has 54 terminations in it.There is a voltage of 8.3V for the battery pack as well.It is listed on the device that it can charge at a maximum current of 2A.Currently, there are 1 channels available.It should be possible to run it from a 8.3V battery it should be able to run at all times.
MAX14748EWW+ Features
Battery pack voltage of 8.3V 1 channels 54-WFBGA, WLBGA package
MAX14748EWW+ Applications
There are a lot of Maxim Integrated MAX14748EWW+ Battery Chargers ICs applications.