The APEX-10K delivers 10,000W of continuous pure sine-wave output with up to 20,000W of surge capacity, providing the power needed for household appliances, pumps, tools, air conditioners, and motors up to 6 HP. Its configurable single-phase and split-phase architecture supports standard 120/240V applications, while a typical 10ms switching time helps maintain continuous power when transitioning between available energy sources.

Paired with the NEXUS 2—featuring 16kWh of LiFePO₄ storage, 314Ah capacity, 150A continuous discharge, and up to 7.6kW of continuous battery power—the system provides substantial energy storage in a rugged, floor-standing design. A 270A one-second peak discharge rating supplies additional current for short equipment-startup demands.

The APEX and NEXUS product lines are designed for seamless operation. RS485 and CAN communication allow the inverter to coordinate directly with the NEXUS 2 BMS, providing accurate battery monitoring and intelligent control over charging, discharging, state of charge, and system protection.

For access to the APEX-10K’s full 10,000W battery-powered output, the inverter should be paired with at least two NEXUS 2 batteries in parallel. Two batteries provide 32kWh of storage, 628Ah of combined capacity, and up to 15.2kW of continuous battery power. This configuration also provides sufficient combined current capacity for the inverter’s maximum 200A solar and hybrid charging capability.

The APEX-10K supports up to 11,000W of combined solar input across two independent MPPT channels. Each channel accepts up to 5,500W and 22A, providing flexible solar-array configuration and improved performance across multiple strings. Its wide 125–450VDC MPPT operating range supports efficient high-voltage solar design.

Grid or generator input can provide supplemental charging and load support when solar production is limited. Smart energy-management features, including timed charging and discharging, allow the system to prioritize solar, battery, or AC input according to operating requirements and time-of-use electricity rates.

The NEXUS 2 features an integrated BMS with multiple safety redundancies, an IP54-rated enclosure, and advanced LiFePO₄ cells rated for more than 8,000 cycles. Its indoor/outdoor installation capability and expandable architecture make it a durable energy-storage solution for residential and remote-power environments.

Ships From: Texas, USA
Warranty: 12 Years (Battery), 5 Years (Inverter)
Support: Lifetime USA-Based Tech Support

Compatibility

Designed to Work Together:

• BigBattery NEXUS 2 48V LiFePO₄ Battery + BigBattery APEX-10K Hybrid Inverter
• Matching 48V battery and inverter architecture
• Seamless BMS integration through RS485 or CAN communication
• Coordinated battery charging, discharging, monitoring, and protection
• One NEXUS 2 supports up to 7.6kW of continuous battery-powered output
• Two NEXUS 2 batteries are recommended to support the inverter’s full 10,000W output
• Two batteries provide sufficient combined capacity for the inverter’s maximum 200A charging capability

Expandable & Flexible:

• Expand the NEXUS 2 battery bank up to 15 batteries in parallel
• Maximum battery configuration rated at up to 241.5kWh
• Parallel up to six APEX-10K inverters for increased system output
• Three or more parallel inverters can be configured for three-phase output
• Supports single-phase and split-phase 120/240V applications
• Supports solar, battery, grid-assisted, or generator-assisted operation
• Suitable for homes, cabins, workshops, homesteads, and remote installations

Key Features

• Integrated BigBattery ESS – NEXUS 2 battery and APEX-10K inverter designed for seamless system operation
• RS485/CAN BMS Communication – Enables intelligent battery monitoring, charging, discharging, and protection
• 10,000W Continuous Output – Powerful pure sine-wave output for demanding residential and off-grid applications
• 20,000W Surge Capacity – Supports short startup demands from pumps, compressors, tools, and large appliances
• 6 HP Motor Capacity – Designed to operate demanding motor-driven equipment
• 120/240V Split-Phase Output – Powers standard 120V loads and heavy-duty 240V appliances
• Typical 10ms Switching Time – Helps maintain continuous power during source transitions
• 11,000W Maximum Solar Input – Supports two independent 5,500W solar-array inputs
• Dual 22A MPPT Channels – Provides flexible solar-string configuration for modern high-power panels
• 125–450VDC MPPT Range – Supports efficient high-voltage solar-array design
• 550VDC Maximum Open-Circuit Voltage – Accommodates substantial PV string voltage
• Up to 200A Solar Charging – Provides rapid charging for expanded NEXUS 2 battery banks
• Up to 120A Grid or Generator Charging – Supplies powerful supplemental battery charging
• Up to 200A Hybrid Charging – Combines available charging sources for faster energy recovery
• 16kWh LiFePO₄ Battery – High-capacity energy storage with a 314Ah rating
• 7.6kW Continuous Power per Battery – Provides dependable current for residential and off-grid loads
• 150A Continuous Battery Discharge – Supports demanding connected equipment
• 270A Peak Battery Discharge – Provides one-second startup support for short surge loads
• 8,000+ Battery Cycles – Engineered to provide more than 12 years of daily cycling
• Advanced Battery Management System – Multiple safety redundancies protect the battery and connected equipment
• 63A Bypass Capacity – Supports substantial loads while operating from the selected AC input
• Grid or Generator Integration – One configurable AC input supports utility or generator operation
• Timed Charging and Discharging – Allows energy usage to be scheduled around operating needs and electricity rates
• 99.9% Maximum Inverter Efficiency – Promotes efficient system operation and reduced conversion losses
• 92% MPPT Tracking Efficiency – Optimizes available energy from the connected solar array
• Optional Wi-Fi/GPRS Monitoring – Enables remote system visibility and control
• Integrated Circuit Breakers – Built-in protection for utility, load, battery, and PV connections
• Expandable Battery Storage – Connect up to 15 NEXUS 2 batteries in parallel
• Expandable Inverter Output – Parallel up to six APEX-10K inverters
• Indoor/Outdoor Battery Installation – Rugged IP54-rated NEXUS 2 enclosure
• Maintenance-Free Operation – Long-lasting LiFePO₄ chemistry without routine servicing

A powerful and seamlessly connected BigBattery energy system engineered for large solar arrays, demanding electrical loads, expandable energy storage, and lasting energy independence.