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The BigBattery APEX-10K Off-Grid Inverter is designed to deliver dependable, whole-home electricity so that your home, cabin, or mobile setup stays powered no matter the conditions.
This high-capacity hybrid inverter produces split-phase 120/240V at 50/60 Hz with clean, pure sine-wave output, pairing perfectly with modern LiFePO₄ battery banks. Whether you’re powering a remote homestead, RV adventures, or a mobile worksite, the APEX-10K ensures seamless, uninterrupted energy for all your critical circuits and large appliances.
Built for demanding real-world applications, this inverter accepts both solar and generator inputs, giving you 24/7 autonomy and freedom from the grid. Its 80A pass-through keeps heavy loads running efficiently, while a rugged, outdoor-ready enclosure guarantees reliable performance across wide temperature ranges. Installer-friendly bottom-entry wiring and integrated protections simplify setup while keeping your system safe and efficient. For homeowners, off-grid enthusiasts, and mobile professionals, the BigBattery APEX-10K Off-Grid Inverter is the cornerstone of a resilient, high-performance energy system.
The APEX-10K provides pure 120/240V split-phase power so that large appliances, essential circuits, and home systems run without flicker. This ensures you get reliable energy for daily needs, emergency backup, and off-grid living with confidence and ease.
With built-in support for solar panels and generators, the APEX-10K keeps your battery charged and devices running day and night. This flexibility allows uninterrupted energy in any condition, giving you true independence from the grid and peace of mind.
The 80-amp pass-through feature allows multiple high-demand appliances to operate simultaneously without overloading the system. You can power refrigerators, air conditioners, pumps, and other heavy loads while maintaining stable, reliable electricity for your home or off-grid setup.
Designed for wide temperature ranges and outdoor exposure, the APEX-10K works reliably in cabins, remote homes, or mobile worksites. Its durable casing protects the inverter from dust, moisture, and harsh conditions, ensuring consistent performance wherever you install it.
Bottom-entry wiring makes installation clean and straightforward while reducing clutter. Combined with intelligent protections for overvoltage, overcurrent, and temperature, it ensures a safe, organized system that is easy to maintain, even in remote or challenging locations.
The APEX-10K works seamlessly with LiFePO₄ battery banks to provide stable, efficient power. This pairing extends battery life, reduces energy loss, and ensures consistent performance, making your off-grid or backup energy setup more reliable and cost-effective.
Whether you’re powering a small cabin, RV, or a large remote property, the APEX-10K adapts to your energy requirements. Its scalable design allows expansion as your energy needs grow, providing long-term flexibility without sacrificing efficiency or performance.
BigBattery provides a limited warranty policy, ensuring the absence of defects in materials, workmanship, and performance during the warranty period.
BigBattery APEX-10K Off-Grid Inverter Specification
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|---|---|
| Brand | BigBattery |
| GTIN/UPC | 00199874999463 |
| Model | APEX-10K |
| Rated Output Power | 10,000 W |
| Max Output Power | 20,000 VA |
| Rated Output Voltage | 120/240 Vac (single-phase / split-phase) |
| Load Capacity of Motors | 6 HP |
| Rated Frequency | 50/60 Hz |
| Output Waveform | Pure sine wave |
| Switching Time | 10 ms (typical) |
| Battery Type | Lithium-ion / Lead-acid / User-defined |
| Rated Battery Voltage | 48 V |
| Voltage Range | 40–60 VDC |
| Max Solar Charging Current | 200 A |
| Max Grid / Generator Charging Current | 120 A |
| Max Hybrid Charge Current | 200 A |
| Solar Input – MPPT | 1 + 1 |
| Max Solar Input Power | 5,000 W + 5,500 W |
| Max Solar Input Current | 22 A + 22 A |
| Max Open Circuit Voltage | 550 VDC + 550 VDC |
| MPPT Voltage Range | 125–450 VDC |
| AC Input Voltage Range | 65–140 VAC |
| AC Input Frequency Range | 50/60 Hz |
| Bypass Overload Current | 63 A |
| AC Inputs | 1 (Grid or Generator) |
| Max Efficiency | 99.9 % |
| MPPT Tracking Efficiency | 92 % |
| Parallel Capacity | Up to 6 units (3+ units can form 3-phase output) |
| Dimensions (H × W × D) | 28.46 × 17.64 × 5.91 in |
| Weight | 62 lbs |
| Protection Degree | IP20 (indoor only) |
| Operating Temperature | 14–131°F (derate above 113°F) |
| External Module (Optional) | Wi-Fi / GPRS |
| Certification | UL1741 / RoHS / EN61000-6-1 / EC61000-6-3 / FCC Part15 Class B / IEC62109-1 / IEC62109-2 |
| Noise | <60 dB |
| Cooling Method | Intelligent fan |
| Warranty | 5 years |
| Communication | RS485 / CAN / USB / Dry contact |
| Integrated Circuit Breaker | Utility / Load / Battery / PV |
| Overload Protection Behavior | After overload, output restores in 3 min; repeated overloads shut inverter until restart. Load >102%–110%: shutdown after 5 min; 110–125%: shutdown after 10 sec; >125%: shutdown after 5 sec. |
| Protection Features | PV input current limiting, PV over-voltage, PV night reverse current, AC over/under-voltage, battery over/under-voltage, battery over-current, AC output short-circuit, heat sink over-temperature, inverter overload |
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