This reference design is a full cell-temperature sensing and high cell-voltage accuracy Lithium-ion (Li-ion), lithium iron phosphate (LiFePO₄) battery pack (52s). The design monitors each cell voltage, cell temperature, and protects the battery pack for safe use. This design supports both daisy-chain and controller area network (CAN) interfaces for a stackable communication up to 1500V battery energy storage systems. These features make this reference design applicable for high-capacity battery pack applications.