ecactus WH-SPHA3.6H-5.12kWh User Manual page 22

Step 2 ：Fix the upper and lower connection board to the inverter box
Pre-lock the back plate and inverter with M4*10L stainless steel screws,
then lock the battery box and inverter with a upper and lower connection
plate, and finally lock the back plate with the screws of the inverter.
（Torque 2.5N.m）
Step 3 ：Install Wifi module
Find the Wifi module in the accessory package and insert it into the base, then
tighten the Plastic nut. Torque: 2.5N.m
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