Best Back Up Electric Generator Options for Smooth Power During Outages
The top picks below cover gas, propane, and battery-powered backup generators designed to keep essential appliances running during outages. This guide targets buyers seeking reliable, ready-to-deploy power, whether for home, cabin, RV, or off-grid use. Each product is evaluated for who it’s best for, its standout strengths, and any practical limits. A quick summary table follows to compare core specs at a glance.
| Product | Total Power | ||
|---|---|---|---|
| Westinghouse 12500W Dual Fuel | Gas: 12500 peak / 9500 running; Propane: 11200 peak / 8500 running | Gas or Propane | Whole-home backup and transfer-switch ready setups |
| EF ECOFLOW Delta 2 | 1800W AC, expandable 1-3kWh | Battery (LiFePO4) | Portable power for home backup without fumes; quick charging |
| Jackery Explorer 1000 v2 | 1070Wh, 1500W AC / 3000W surge | Battery (LiFePO4) | Camping, emergencies, light home backup |
| DuroMax XP13000EH | 13,000W (dual fuel) | Gas or Propane | Whole-home backup with dual-fuel versatility |
| WEN 6800-Watt DF680iX | Gas 5100W rated / 6800W surge; Propane 4500W rated / 6000W surge | Gas or Propane | High-output inverter-backed backup with CO watch |
Westinghouse 12500W Dual Fuel — Best For Whole-Home Backup
The Westinghouse 12500W Dual Fuel generator provides substantial power with gas and propane options. It delivers 9500 running watts on gasoline and 8500 running watts on propane, with peak outputs above 12k. Features include remote start, a transfer switch-ready configuration, and a long-running 6.6-gallon tank. Best for buyers who want a large, versatile unit capable of powering essential home circuits during extended outages. Caution: dual fuel preference comes with higher weight and larger footprint, which may require a dedicated setup space.
EF ECOFLOW Delta 2 — Best For Clean Backup Power On The Go
The EF ECOFLOW Delta 2 is a high-capacity portable power station with LiFePO4 chemistry, 1024Wh base capacity, and 1800W AC output. It supports rapid 0-80% charging in about 50 minutes and up to 3kWh expandability via add-on batteries. This unit is ideal for home backup power without the noise and emissions of traditional generators, plus it supports a wide range of outlets and devices. Choose this if you need quiet operation, modular expansion, and flexible charging options for off-grid or interior backup use. Limitation: best suited for loads under 1800W continuous unless expanded with extra packs.
Jackery Explorer 1000 v2 — Best For Portable Electricity On The Move
The Jackery Explorer 1000 v2 provides a 1070Wh LiFePO4 battery with a 1500W continuous AC output and a 3000W surge. It charges rapidly via AC and can be charged through optional solar panels. It weighs about 24 pounds and incorporates a rugged handle, making it suitable for camping, RVs, and emergency home backup where portability matters. Best for users who prioritize lightweight, easy transport with solid runtime for small to mid-sized appliances. Limitation: not designed for high-wattage appliances for extended periods.
DaranEner Portable Power Station — Best For Compact Backup
The DaranEner unit delivers 192Wh capacity with a 300W continuous sine-wave output and 600W surge. It includes USB-C PD 60W fast charging and optional solar charging, making it suitable for small electronics, lights, and essential devices during short outages. Best for compact, lightweight backups and travelers. Limitation: insufficient for high-wattage appliances or prolonged outages requiring heavy loads.
DuroMax XP13000EH — Best For Whole-Home Backup With Dual Fuel
The XP13000EH offers 13,000 watts of peak power and dual-fuel capability, enabling operation on gasoline or propane. As a whole-home backup solution, it is designed for long outages and larger loads. It is built for durability and robust power delivery. Best for homeowners needing substantial power with flexibility in fuel choices. Limitation: higher noise levels and larger footprint require careful site planning and venting considerations.
WEN 6800-Watt DF680iX — Best For High Output With Safety Features
The WEN DF680iX inverter generator delivers 6800W peak and 5100W running on gasoline, with 6000W peak and 4500W running on propane. It includes a bonded-neutral 240V configuration to support Level 2 charging for certain EVs and a CO watchdog sensor for safety. Best for users who need strong backup power with added vehicle charging compatibility and a focus on safety. Limitation: not as large as the top dual-fuel units for full-home power in very big outages.
Buying Guide: Key Considerations For Your Backup Power
Power needs: Assess essential circuits and appliances. Create a wattage list and plan for surge demands. For whole-home coverage, prioritize high-running-watt dual-fuel models and transfer-switch readiness.
Fuel type: Gasoline generators offer quick refueling and long run times, while propane can be stored longer. Battery-based systems offer quiet operation and no fumes but require charging infrastructure and, often, expansion for higher loads.
Portability vs. capacity: Portable units suit smaller homes or tight spaces; large-dual fuel models support bigger loads but require space and setup. Consider a permanent transfer switch for seamless indoor switching when power drops.
Safety features: Look for CO sensors, automatic low-oil shutdown, rubber outlet covers, GFCI outlets, and reinforced enclosures. For battery systems, ensure proper BMS and temperature management.
Charging and maintenance: Battery-based systems benefit from fast charging and solar compatibility. Fuel generators require routine maintenance, air filters, oil changes, and proper storage.
Usage scenario: For camping or RV use, prioritize lightweight, high-output inverters with safe, quiet operation. For home back-up, prioritize larger capacity and transfer-switch compatibility or utility-grade readiness.
FAQ
- What is the best backup generator for a whole-house outage? A large dual-fuel generator with transfer switch readiness, such as the Westinghouse 12500W, is well suited for whole-house needs and versatile fuel options.
- Are battery-powered generators sufficient for long outages? They work well for essential devices and comfort power, but may require expansion or multiple units for extended outages or high-wattage appliances.
- Is propane safer than gasoline for backup power? Propane stores longer and can be cleaner in some installations, but availability and energy content should be weighed against running needs and local codes.
- What about noise and emissions? Battery-based systems (like ECOFLOW Delta 2 and Jackery) offer quiet operation and zero emissions during use, ideal for indoor or noise-sensitive settings.
- Do I need a transfer switch? For clean, automatic switching, a transfer switch is recommended, especially for essential circuits and whole-home backup setups.
- Can these generators handle air conditioners or refrigerators? Larger dual-fuel or inverter generators with ample running watts are required for continuous cooling and refrigeration loads; check continuous watt ratings.