A lithium battery series string raises the system voltage for inverters and high-voltage DC tools. A series-parallel bank is built by building identical series strings and then landing those. . Lithium battery banks using batteries with built-in Battery Management Systems (BMS) are created by connecting two or more batteries together to support a single application. Connecting multiple lithium batteries into a string of batteries allows us to build a battery bank with the potential to. . How you wire your batteries directly impacts the solar lithium battery bank wiring in terms of voltage, capacity, and overall performance of the system. . Our ISO 9001-certified manufacturing facilities and IEC 62133-compliant designs ensure that every 18650 battery pack, Li-ion, lithium polymer, and LiFePO4 system delivers unmatched safety, energy density, and cycle life. This definitive guide unpacks the science and strategy behind series. . Quick Answer Lithium batteries can be connected in series to increase voltage, in parallel to increase capacity, or in a series-parallel configuration to increase both voltage and capacity. This guide will break down the key. .