Anker
Anker SOLIX F3800 Plus
The enthusiast favorite for DIY whole-home backup, and the unit r/Anker and diysolarforum threads obsess over. 6000W split-phase with both a NEMA 14-50 and L14-30 on the face means it plugs straight into a generator inlet - no adapters - and can trickle-charge an EV. The Plus revision added 3,200W solar input and gas-generator charging input, fixing the two biggest F3800 complaints. Anker's permanent price cut to $2,499 (from $4,799 launch) made it the per-kWh bargain of the big-battery class. Owner quirks: a documented buzzing noise traced to a ferrite bead that firmware only partially fixed, fans that are unapologetically loud during 2,400W charging, and Home Power Panel installs that depend on finding a willing electrician. Support experiences vary wildly in owner reports - some get instant advance replacements, others chase tickets for weeks.
Specifications
Highlights
Pros
- ✓6000W/240V split-phase from one unit - plugs into standard generator inlets
- ✓NEMA 14-50 enables emergency EV charging, a genuinely unique trick
- ✓Expands to 26.9kWh per unit, 53.8kWh paired
- ✓3,200W solar input recharges the base unit in under 2 sun-hours
- ✓Gas generator input for indefinite off-grid runtime
- ✓$2,499 permanent pricing is the best $/kWh among 240V portables
Cons
- ✗Known ferrite-bead buzz under load; firmware patch reduced but didn't eliminate it
- ✗Fans are loud during fast charging - garage placement recommended
- ✗132 lbs; wheels are small and struggle off pavement
- ✗Home Power Panel adds ~$1,500+ plus electrician for panel integration
- ✗Anker support quality is inconsistent per owner reports
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