How to Store My Power Station When Not in Use? – OUPES Help Center

Before storing your power station for an extended period, please follow the steps below.

Preparation Before Storage

1. Adjust the charge level to 50%–80%

2. Turn off all output ports

Manually turn off: AC output, DC output (USB/12V), IoT button, and the AC IN/OUT toggle switch (for Mega 3 and Mega 5).
Press and hold the main power button until OFF appears on the screen, then release. The unit will fully shut down.

3. Disconnect all cables

Unplug all charging cables and load cables.

4. Clean the unit

Wipe the housing and ports with a soft, dry cloth. Make sure there is no dust or liquid residue. Close the rubber port covers.
Do not use harsh or corrosive cleaners.

5. Record the current status (take a photo or write on a label and attach it to the unit)

Current charge percentage
Current date
Reminder date for the next maintenance charge (recommended: every 3 months)

Storage Environment

Dry, well‑ventilated area, out of direct sunlight.
Temperature range: -4°F to 140°F (-20°C to 60°C)
Keep away from flammable materials (paper, fabric, gasoline, etc.).
Do not stack heavy objects on top of the unit.

Regular Maintenance

We recommend performing a charge/discharge cycle once every 3 months for battery health.

Even when powered off, the BMS and natural battery self‑discharge will slowly consume power (typically 1%–3% per month). If you do not check the unit for 6 months, the charge level may drop from 50% to below 30%. If it continues to drop, the battery risks entering an over‑discharged state.

Reactivation After Long‑Term Storage

When you are ready to use the power station again, follow these steps:

1. Visual inspection – Check for any signs of deformation or rust/corrosion.

2. Temperature acclimation – If the unit was stored in a low‑temperature environment (< 50°F / 10°C), let it sit at room temperature for 2–4 hours before powering on.

3. Power on and check charge level

If the display shows <10% , charge the unit first.
If the charge level is adequate, please discharge the unit until the screen shows error code E002, then charge it fully to 100%. After that, you can use it normally.