One source reports that firmware updates can improve charging behavior, though other hands-on coverage says the 240D lacks app access for installing them.
Pros: power output, rated output
Cons: AC outlet count, repairability
Best Generators for firmware updates
Updates added useful fixes for some owners, yet others encountered confusing errors or even units becoming unusable during installation.
Pros: rated output, peak output
Cons: startup reliability, full-load noise
Firmware is a weak point: updates may fail to appear, require Bluetooth, or interrupt all output during installation. Some owners also needed an update to address abnormal battery drain.
Pros: rated output, output stability
Cons: over-voltage protection, cold-weather performance