Methods and aparatuses for charging hybrid battery pack

A battery management system (BMS) comprising:

• a memory configured to store a plurality of plots;
• and
• a processor configured to determine a current split ratio for allocating charging current to an energy cell and a power cell in a hybrid battery pack, based on any one or any combination of a state of charge (SoC) level of the energy cell at an instance of initiation of charging, a SoC level of the power cell at the instance of the initiation of charging, a wattage of an adapter for charging the hybrid battery pack, a capacity of the hybrid battery pack, and a charging time period, and to charge the hybrid battery pack by allocating the charging current to the energy cell and the power cell in accordance with the current split ratio,
• wherein the processor is further configured to determine the current split ratio based on the plurality of plots representing variations of percentage of charging of the hybrid battery pack with respect to time, for different current split ratios.

A portable terminal for charging a hybrid battery pack, the portable terminal comprising:

• a hybrid battery pack comprising an energy cell and a power cell;
• a storage configured to store a plurality of plots;
• one or more processors configured to:
• choose a plot from among the plurality of plots, and to determine a current split ratio based on the plot;
• and
• charge the hybrid battery pack by allocating charging current to the energy cell and the power cell in accordance with the determined current split ratio,
• wherein the plurality of plots represent variations of percentage of charging of the hybrid battery pack with respect to time, for different current split ratios.