Blue Whale series B12 lithium-ion battery is an integrated power solution with built-in charge/discharge control module, specially designed and developed for beacon tower, buoys etc. Utilizes automotive grade lithium-ion battery, built-in Battery Management System (BMS) and solar charge/discharge control module ensure the operation reliability. The management system software is configurable to work with different environment conditions thus, the battery is more reliable and stable, up to 5 years free of maintenance. Blue Whale B12 lithium-ion batteries have recorded more than 8 years of successful operation, provided safe and reliable power solution to our customers.