Big Battery | APEX 10K Off-Grid Inverter
Big Battery APEX 10K Off-Grid Inverter with 10kW Split-Phase Power
Built for high-demand off-grid and backup applications, the EBig Battery APEX 10K delivers powerful, stable energy for homes, farms, and remote sites. Its 120/240V split-phase output supports full residential loads, while advanced MPPT solar charging and 48V battery compatibility simplify system integration. Designed for scalability and long-term reliability, this inverter is well suited for renewable energy systems that require performance, flexibility, and operational confidence.
KEY FEATURES
- Provides 10kW of continuous off-grid power
- Supports 120/240V split-phase residential systems
- Integrated high-capacity MPPT solar charge controllers
- Compatible with 48V lithium and lead-acid battery banks
- Parallel capable for expanded system capacity
- Pure sine wave output for sensitive electronics
Specifications
| Section | Specification | Details |
|---|---|---|
| General | Document title | APEX-10K Inverter Specifications |
| General | Brand | BigBattery |
| General | Model | APEX-10K |
| General | GTIN / UPC | 00199874999463 |
| Inverter output | Rated output power | 10,000W |
| Inverter output | Max. output power | 20,000VA |
| Inverter output | Rated output voltage | 120/240 Vac, single-phase / split-phase |
| Inverter output | Load capacity of motors | 6 HP |
| Inverter output | Rated frequency | 50 / 60Hz |
| Inverter output | Output wave | Pure sine wave |
| Inverter output | Switching time | 10ms (typical value) |
| Battery | Battery type | Lithium-ion battery / lead-acid battery / user-defined battery |
| Battery | Rated battery voltage | 48V |
| Battery | Voltage range | 40–60Vdc |
| Battery | Max. solar charging current | 200A |
| Battery | Max. grid / generator charging current | 120A |
| Battery | Max. hybrid charge current | 200A |
| Solar input | Number of MPPT | 1 + 1 |
| Solar input | Max. input power | 5,000W + 5,500W |
| Solar input | Max. input current | 22A + 22A |
| Solar input | Max. open circuit voltage | 550Vdc + 550Vdc |
| Solar input | MPPT voltage range | 125–450Vdc |
| Grid / generator input | Input voltage range | 65–140Vac |
| Grid / generator input | Input frequency range | 50 / 60Hz |
| Grid / generator input | Bypass overload current | 63A |
| Grid / generator input | AC inputs | 1 input (grid or generator) |
| Efficiency | Max. efficiency | 99.9% |
| Efficiency | MPPT tracking efficiency | 92% |
| Parallel capability | Parallel capacity | Up to 6 units; more than 3 units in parallel can form three-phase output |
| General data | Dimensions (W × H × D) | 28.46 × 17.64 × 5.91 inches |
| General data | Weight | 62 lbs |
| General data | Protection degree | IP20 (indoor use only) |
| General data | Operating temperature | 14–131°F, derate above 113°F |
| General data | External module (optional) | Wi-Fi / GPRS |
| General data | Noise | < 60dB |
| General data | Cooling method | Intelligent fan |
| General data | Warranty | 5 years |
| General data | Communication | RS485 / CAN / USB / Dry contact |
| General data | Integrated circuit breaker | Utility / Load / Battery / PV |
| Certification | Certificates | UL1741, RoHS, EN61000-6-1, EN61000-6-3, FCC Part 15 Class B, IEC62109-1, IEC62109-2 |
| Overload protection | Overload protection behavior | Output restores after 3 minutes; after 5 overload events, output will be off until inverter restart. 102% < load < 110%: error, output off after 5 minutes. 110% < load < 125%: error, output off after 10 seconds. Load > 125%: error, output off after 5 seconds. |
| Protection features | Protection features | PV input current limiting, PV input over-voltage protection, PV night reverse current protection, AC input over-voltage protection, AC input under-voltage protection, battery over-voltage protection, battery under-voltage protection, battery over-current protection, AC output short-circuit protection, heat sink over-temperature protection, inverter over-load protection |
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