WEN GN400iM First Run

Picked up this WEN GN400iM for $300 on sale. The owners manual states for break in you should run it at under 50% load for 5 hours, while varying the RPM with the Eco Switch, and then change the oil. Here I am rotating out Ecoflow batteries that charge between 800w and 1.2kw to capture that "Wasted" power, while keeping a load on the generator. I have added a magnetic dip stick, hour meter, fuel tank drain and a switch to go from floating to bonded. Generator seems to be running well