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BigBattery APEX 6.5K Off-Grid Inverter
BigBattery APEX 6.5K Off-Grid Inverter
BigBattery APEX 6.5K Off-Grid Inverter
Load image into Gallery viewer, BigBattery APEX 6.5K Off-Grid Inverter
Load image into Gallery viewer, BigBattery APEX 6.5K Off-Grid Inverter
Load image into Gallery viewer, BigBattery APEX 6.5K Off-Grid Inverter

SKU: BB-INV035-6.5K

BigBattery APEX 6.5K Off-Grid Inverter

Ozark Mountain Offgrid
$1,490.00
$1,490.00
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Meet the APEX 6.5K off-grid hybrid inverter engineered for true energy independence. Delivering split-phase 120/240 V at 50/60 Hz with clean, pure sine-wave output, APEX pairs flawlessly with modern LiFePO₄ banks and accepts both solar and generator inputs for seamless, all-day autonomy. An 80A pass-through keeps large appliances and critical loads humming, while wide operating temps and an outdoor-ready enclosure mean reliable performance in real-world conditions. Installer-friendly bottom-entry wiring and smart protections round out a system that’s rugged, efficient, and ready to power your cabin, homestead, or remote residences to deliver the ultimate source of energy independence.

1 x APEX 6.5K Off-Grid Hybrid Inverter

Apex Inverter Specification Sheet

Inverter Specifications

Brand: BigBattery
Model: APEX-6.5K 
Section: Inverter output
Rated Output Power: 6,500W
Max. Output Power: 13,000VA
Rated Output Voltage: 120/240 Vac (single-phase / split-phase)
Load capacity of motors: 4 HP
Rated Frequency: 50/60Hz
Output Wave: Pure sine wave
Switching Time: 10ms (typical value)
Section: Battery
Battery Type:Lithium-ion battery / lead-acid battery / user-defined battery
Rated Battery Voltage: 48V
Voltage Range: 40–60Vdc
Max. Solar Charging Current: 140A
Max. Grid / Generator Charging Current: 80A
Max. Hybrid Charge Current: 140A
Section: Solar input
No. of MPPT: 1 + 1
Max. Input Power: 5,000W + 5,000W
Max. Input Current: 18A + 18A
Max. Open Circuit Voltage: 550Vdc + 550Vdc
MPPT Voltage Range: 125–450Vdc
Section:Grid / Generator input
Input Voltage Range: 65–140Vac
Input Frequency Range: 50/60Hz
Bypass Overload Current: 40A
AC Inputs: 2 inputs (Grid & Generator)
Section: Efficiency
Max. Efficiency: 99.9%
MPPT Tracking Efficiency: 93%
Parallel Capacity:Up to 6 units (3 or more units in parallel can form a three-phase output)
Section: General data
Dimension: 25.51 × 16.14 × 5.51 inches
Weight: 48 lbs
Protection Degree: IP20 (indoor only)
Temperature: 14–131°F, derate above 113°F
External Module (Optional): Wi-Fi / GPRS
Certificate: UL1741 / RoHS / EN61000-6-1 / EC61000-6-3 / FCC Part15 Class B / IEC62109-1 / IEC62109-2
Noise:<60dB
Cooling Method: Intelligent fan
Warranty: 5 years
Communication: RS485 / CAN / USB / Dry contact
Integrated Circuit Breaker:Utility / Load / Battery / PV
Section: Overload protection
Overload protection behavior: After overload protection is enabled, the inverter output will be restored after 3 minutes, and after 5 times of overload, the output will be off until the inverter is restarted. (102% < APEX-10K load < 110%): an error will be reported and the output will be turned off after 5 minutes. (110% < load < 125%): an error will be reported and the output will be turned off after 10 seconds. Load > 125%: an error will be reported and the output will be turned off after 5 seconds.
Protection features:Has PV input current limiting protection, 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.