Growatt SPF 5000 ES with double SJY battery

Growatt SPF 5000 ES paired with two SJY batteries This walkthrough shows how to establish BMS communication between a Growatt SPF 5000 ES inverter and an SJY LFP battery. Covered topics include: - Wiring and communication configuration on the SJY battery and Growatt inverter - Reasons for using RS485 in a parallel string setup - Causes of Growatt fault 04, shown as a low-battery warning in Lithium mode - My assessment of the SJY 15 kWh battery - How User Defined and Lithium battery modes differ on Growatt - Connecting two LPF banks in parallel - Advantages of BMS closed-loop operation, such as SOC alarms and dynamic charging current - Additional related details The equipment was purchased at full price; this is not a sponsored video. Chapters: 0:00 Intro 2:07 Battery setup (Protocol selection) 6:16 Inverter setup (Growatt) 8:18 Low DC Cut Off level setup in Lithium mode (SOC Percentage) 13:06 Cells info, capacity check, Temperature report 15:15 My review of SJY battery (after a few months) 17:45 Summary and outro #growatt #offgrid #sjy #bms #lfpbattery Presented by Copper Silver and Steel.