Abstract: The present disclosure relates to a battery management system and method that improves the life span of a battery using various temperatures. In one example, the lifespan of a battery is optimized by: heating a battery as it begins to charge; once a battery has reached a full charge, cooling the battery as low as possible while it isn't charging (i.e., full battery); if a battery is fully-discharged, no cooling is required; however, partially charged batteries need cooling to reduce aging. As the batteries age, the temperature at which they charge needs to increase. If the battery temperature cannot be raised, the charge current should be divided in half above 60% State of Charge.

Abstract: A battery charge and discharge cycling with predictive load and availability control system has a server and a load control device. The server predicts usage and future solar capacity at the specific sites where the battery packs are in use. The batteries are cycled near the lower end of capacity (state of charge or SoC), which extends life. Further, the load control device can reduce a battery's SoC if the weather forecast is sunny. The load control device may turn on appliances in the home to use excess energy that is generated by the solar system.