★★★★★
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BLACK OAK Lithium is a powerful battery monitoring app that connects via Bluetooth to your battery management system (BMS) to display real-time battery data—including State of Charge (SOC), current, capacity, power, individual cell voltages, cycle count, and protection event logs. Beyond single-battery monitoring, BLACK OAK also supports simulating custom battery pack configurations by virtually connecting multiple batteries in series or parallel. The app automatically calculates and displays the combined voltage, total current, and aggregated power output, making it an essential tool for engineers, hobbyists, and professionals working with DIY battery packs, EVs, solar storage, or portable power systems.