Six months of 'we'll sort the backup power' and then a three-day blackout hits your street. The Bluetti Apex 300 is the one that actually holds up. A second-gen automotive-grade LiFePO₄ battery rated for roughly 17 years of daily cycling means it's still pulling its weight when your first unit is in the bin. Scalable from 2.7kWh up to 58kWh with a combined output ceiling of 11.52kW, it grows with your needs — a single unit for the home office, stacked units for a full off-grid block. The 20ms UPS switchover is faster than your monitor's refresh cycle; you won't even notice the grid dropped. Charge via solar (up to 2400W), generator (3450W), or AC (2300W). The BLUETTI App gives you real-time monitoring and weather alerts, so you top up before the storm hits, not after. Ultra-low standby draw keeps it 2–3 times more efficient than comparable units sitting on your shelf
| brand | Jaycar |
| model | Bluetti Apex 300 |
| battery_type | LiFePO4 (2nd-gen automotive-grade) |
| battery_life | ~17 years |
| capacity_range | 2.7kWh to 58kWh (scalable) |
| max_combined_output | 11.52kW |
| ups_switchover | 20ms |
| solar_charging_max | 2400W |
| generator_charging_max | 3450W |
| ac_charging_max | 2300W |
| app_control | BLUETTI App with real-time monitoring and weather alerts |
| standby_efficiency | 2-3x more efficient than comparable units |
| category | Power & Batteries |