12.1 System Power-Off............................................................................................................................................................ 172

12.2 Routine Maintenance..................................................................................................................................................... 172

12.3 Troubleshooting................................................................................................................................................................ 173

12.4 Battery Storage and Charge......................................................................................................................................... 193

12.5 Storage with Low SOC................................................................................................................................................... 196

12.6 Battery SOH Check.......................................................................................................................................................... 196

13 FAQs..................................................................................................................................... 198

13.1 How Do I Upgrade the Device Software Version?................................................................................................ 198

13.2 Tools for Preparing PV Cables......................................................................................................................................199

13.3 Special Cables.................................................................................................................................................................... 199

13.4 Removing Power Terminals.......................................................................................................................................... 200

13.5 Power-On............................................................................................................................................................................ 200

13.6 SOC Changes..................................................................................................................................................................... 200

13.7 Checking Cable Connections When the Product Fails to Be Upgraded........................................................ 200

13.8 WiFi QR Code Scanning................................................................................................................................................. 200

13.9 Querying the Battery Capacity in Parallel-System Scenarios........................................................................... 200

13.10 Problem Handling......................................................................................................................................................... 201

13.11 Resetting Passwords..................................................................................................................................................... 201

A Technical Specifications.................................................................................................... 202

A.1 ESS........................................................................................................................................................................................... 202

A.2 Power Module..................................................................................................................................................................... 205

A.3 Battery Module................................................................................................................................................................... 206

A.4 AC Parallel Box.................................................................................................................................................................... 206

B Preparing Cables and Terminals......................................................................................207

B.1 Preparing a Cord End Terminal..................................................................................................................................... 207

B.2 Preparing an OT Terminal............................................................................................................................................... 207

B.3 Preparing a PV Input Power Cable............................................................................................................................... 208

B.4 Stripping Length................................................................................................................................................................. 209

C Contact Information...........................................................................................................211

Issue 06 (2023-04-24)

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Table of Contents