StorageReview checked out the Growatt VITA 550 Portable Power Station
A quote from the article:
The Growatt Vita 550 Portable Power Station is designed to power most of your essential devices and electronics with a 600W output rating. Equipped with a 538Wh LiFePO4 battery, the VITA 550 is designed to handle most medium-duty needs in the field, with a long-life battery supporting many charge cycles. With an onboard charger, users don't need to carry any external charging bricks to charge the unit out in the field.Growatt VITA 550 Portable Power Station Review