WeCo 5.3kwh 51.2V Lithium Battery 5K3-XP comes complete, with mounting bracket and LV cables. The Stackable Module is a DUAL VOLTAGE module that can be used in a Low Voltage(48.5-58.4Vdc) configuration or in a High Voltage(80/200-750Vdc) configuration. WeCo 5.3kwh 51.2V Lithium Battery 5K3-XP Dual Voltage battery is the most advanced lithium module for home and industrial. The energy storage.