Honda EG4000 vs Powermate PM3800

Comparison Overview

Analysis by AJ Quick

Mechanical engineer and founder of RightGenerator

Key takeaways

• Honda EG4000 provides 3500 running watts, 500 more than the Powermate PM3800
• Powermate PM3800 weighs just 96 lbs, over 50 lbs lighter than the Honda
• Powermate PM3800 offers 21 hours of runtime at quarter load for lighter use
• Both generators include a 3-year warranty and run on gasoline
• Honda EG4000 runs at 66 dB, typical for open-frame generators in this class
• Both are conventional generators, not inverter models, so power is less refined

Best use cases

Choose the Honda EG4000 if you need to power larger loads reliably. With 3500 running watts, it can handle a combination of a refrigerator, a few lights, a sump pump, and a window AC unit during a power outage, something the Powermate would struggle with simultaneously. It's a strong pick for home backup situations where you want headroom to run high-draw appliances without constantly worrying about overloading the generator. The Honda brand also carries a well-earned reputation for engine longevity, which can matter if you plan to keep this generator for a decade or more. The tradeoff is weight. At nearly 150 lbs, moving the EG4000 solo is not easy, and you'll want a wheeled kit or a second pair of hands.

Choose the Powermate PM3800 if portability is a top concern. At 96 lbs, it's roughly 50 pounds lighter than the Honda, making it far easier to transport for tailgating, camping trips, or moving between locations on a work site. Its 21-hour runtime at quarter load is excellent for situations where you're running just a few lights or charging devices overnight. The 3000 running watts is still enough to power essential home circuits during an outage, though you'll need to be more selective about what you plug in at the same time.

Keep in mind that neither generator is an inverter model, so the power output won't be as clean or stable as what you'd get from an inverter generator. If you plan to directly power sensitive electronics like computers or medical devices, consider adding a quality surge protector regardless of which model you choose. Both units share the same 3-year warranty, so after-sale coverage is a wash.

Verdict & recommendation

If your priority is maximum power output and long-term engine reliability, the Honda EG4000 is the stronger choice. Its extra 500 running watts provide meaningful breathing room for home backup and heavier tool use. If you value portability and plan to move your generator frequently, or if your typical loads are lighter, the Powermate PM3800 saves you 50 pounds and offers excellent quarter-load runtime at a likely lower price point.

Neither generator is a bad pick in this wattage class. The decision really comes down to whether you'd rather have more power on tap or a machine that's significantly easier to move around. For stationary home backup, the Honda edges ahead. For mobile use and lighter loads, the Powermate earns its place.