A hybrid battery system is provided for extending the shelf-life of rechargeable batteries. The hybrid battery system may contain sets of non-rechargeable and rechargeable batteries respectively. As the rechargeable batteries are discharged (e.g., from self-discharge), the hybrid battery system may utilize the non-rechargeable batteries to maintain the rechargeable batteries at a preferred state of charge. A preferred state of charge may be selected to extend the shelf-life of the rechargeable batteries. Alternatively, a signal may change the preferred state of charge to prepare the rechargeable batteries for use or for other reasons. The hybrid battery system may contain modular components, thereby allowing for easy replacement of defective or otherwise unsuitable non-rechargeable batteries, rechargeable batteries, or supporting electronics.

In one aspect, computer-implemented method may include receiving, from one or more sensors associated with a battery pack, one or more measurements pertaining to voltage, temperature, or both. The method may include determining, based on the one or more measurements, a voltage score and a temperature score, and predicting, based on the voltage score and the temperature score, whether the battery pack is experiencing a fault condition. The prediction is performed by an artificial intelligence engine. Responsive to predicting the battery pack is experiencing the fault condition, the method may include performing one or more preventative actions.

A hybrid battery system is provided for extending the shelf-life of rechargeable batteries. The hybrid battery system may contain sets of non-rechargeable and rechargeable batteries respectively. As the rechargeable batteries are discharged (e.g., from self-discharge), the hybrid battery system may utilize the non-rechargeable batteries to maintain the rechargeable batteries at a preferred state of charge. A preferred state of charge may be selected to extend the shelf-life of the rechargeable batteries. Alternatively, a signal may change the preferred state of charge to prepare the rechargeable batteries for use or for other reasons. The hybrid battery system may contain modular components, thereby allowing for easy replacement of defective or otherwise unsuitable non-rechargeable batteries, rechargeable batteries, or supporting electronics.

A power management unit architecture including a set of batteries connected to a load via a bus; a controller in operative communication with the batteries; a telemetry unit in operative communication with the controller and the batteries; at least one power switch in operative communication with the controller, the batteries and the bus; a squib unit operatively connected to the batteries; wherein the controller is configured to pull a battery current from a first battery and drive the first battery current into a second battery responsive to a predetermined current.