I received this 3840W unit yesterday. According to the manual, do I need to charge it? Yes or no? I’m not quite clear about AC charging. Should I turn it on first and then plug it in, or plug it in first and then turn it on? What information wil...

It is recommended to perform a charge/discharge calibration cycle. Due to prolonged transportation and storage, the battery’s internal performance may not be fully activated, which can lead to inaccurate battery level readings. Upon first receiving the energy storage power supply, please follow these calibration steps: 1. Charge the unit to 100%; 2. Discharge the unit until it automatically shuts down (automatic shutdown is crucial!); 3. Recharge the unit to 100% again.

Connect to power before turning on the device.

For detailed information on LCD screen displays, please refer to the user manual.

After powering on, the display will show the remaining discharge time, battery level, charge/discharge power, and frequency.

It is recommended to adjust the knob on the input voltage stabilizer to 1200W.