The BigBattery APEX-6.5K is an all-in-one off-grid hybrid inverter that combines an inverter, solar charger, and battery charger to deliver reliable 120/240V split-phase power with a clean pure sine wave output. Built for DIY-friendly installs, it supports solar + generator inputs, smart energy modes, and communication ports for monitoring—making energy independence simpler, clearer, and more affordable
Key Features & Benefits:
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6,500W continuous / 13,000W surge power for demanding loads
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120/240V split-phase, 50/60Hz pure sine wave output for household + 240V appliances
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Dual MPPT (1+1) solar charging with up to 10,000W PV input and 125–450VDC MPPT range for flexible array design
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48V battery system (40–60VDC) supports lithium / lead-acid / user-defined battery profiles
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Charge rates: 140A max solar, 80A max grid/generator, 140A max hybrid
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Two A/C inputs (Grid & Generator) plus 40A bypass overload current for pass-through support
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Parallel up to 6 units for scalable systems
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Installer-friendly bottom-entry wiring + built-in protections for safer, cleaner installs
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Monitoring & integration: RS485/CAN/USB/Dry Contact (optional Wi-Fi/GPRS module)
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Certifications: includes UL1741 (plus others listed) and 5-year warranty
Specs at a Glance:
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Battery Voltage: 48V (40–60VDC range)
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Bypass/Overload Current: 63A
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Dimensions / Weight: 28.46 × 17.64 × 5.91 in / 62 lbs
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Operating Temp: 14–131°F (derate above 113°F)
User Manual / Documents:
The BigBattery APEX-6.5K is an all-in-one off-grid hybrid inverter that combines an inverter, solar charger, and battery charger to deliver reliable 120/240V split-phase power with a clean pure sine wave output. Built for DIY-friendly installs, it supports solar + generator inputs, smart energy modes, and communication ports for monitoring—making energy independence simpler, clearer, and more affordable
Key Features & Benefits:
-
6,500W continuous / 13,000W surge power for demanding loads
-
120/240V split-phase, 50/60Hz pure sine wave output for household + 240V appliances
-
Dual MPPT (1+1) solar charging with up to 10,000W PV input and 125–450VDC MPPT range for flexible array design
-
48V battery system (40–60VDC) supports lithium / lead-acid / user-defined battery profiles
-
Charge rates: 140A max solar, 80A max grid/generator, 140A max hybrid
-
Two A/C inputs (Grid & Generator) plus 40A bypass overload current for pass-through support
-
Parallel up to 6 units for scalable systems
-
Installer-friendly bottom-entry wiring + built-in protections for safer, cleaner installs
-
Monitoring & integration: RS485/CAN/USB/Dry Contact (optional Wi-Fi/GPRS module)
-
Certifications: includes UL1741 (plus others listed) and 5-year warranty
Specs at a Glance:
-
Battery Voltage: 48V (40–60VDC range)
-
Bypass/Overload Current: 63A
-
Dimensions / Weight: 28.46 × 17.64 × 5.91 in / 62 lbs
-
Operating Temp: 14–131°F (derate above 113°F)
User Manual / Documents:
BigBattery APEX 6.5K Hybrid Off-Grid Inverter | 6,500W 120/240V Split-Phase | Dual MPPT 10kW | 48V | UL1741 | 5-Year Warranty
- Regular price
- $1,490.00
- Sale price
- $1,490.00
- Regular price
-
$1,900.00
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BigBattery APEX 6.5K Hybrid Off-Grid Inverter | 6,500W 120/240V Split-Phase | Dual MPPT 10kW | 48V | UL1741 | 5-Year Warranty
Testimonials
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Join the thousands of people who have already secured their energy independence.
"Amazing experience from start to finish. The team was incredibly helpful and the system is performing beyond expectations. Couldn't be happier with our decision."
"The whole process was seamless. From ordering to installation, everything was straightforward. Our electricity bill has dropped significantly!"
"Best investment we've made for our home. The customer support is outstanding — they walked us through every step of the setup process."
"We compared prices everywhere and this was by far the best deal. The quality of the panels is top-notch and installation guidance was superb."
"Great product and even better customer service. They helped us design the perfect system for our needs. Highly recommend to anyone considering solar."
"From the free proposal to the final install, everything exceeded our expectations. We're producing more energy than we consume most months!"
"Amazing experience from start to finish. The team was incredibly helpful and the system is performing beyond expectations. Couldn't be happier with our decision."
"The whole process was seamless. From ordering to installation, everything was straightforward. Our electricity bill has dropped significantly!"
"Best investment we've made for our home. The customer support is outstanding — they walked us through every step of the setup process."
"We compared prices everywhere and this was by far the best deal. The quality of the panels is top-notch and installation guidance was superb."
"Great product and even better customer service. They helped us design the perfect system for our needs. Highly recommend to anyone considering solar."
"From the free proposal to the final install, everything exceeded our expectations. We're producing more energy than we consume most months!"
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Frequently Asked Questions
Find the answers to some of the most common questions customers have before placing their order.
Yes. Our team can help you choose the right solar kit based on your goals, power needs, and location. We provide personalized guidance before and after your purchase at no additional cost.
Many of our customers complete the majority of installation themselves using our diagrams and support resources. For final electrical connections, a licensed electrician may be required depending on local codes.
While we do not directly install systems, we can help connect you with qualified local professionals and provide technical documentation to support your installer.
Our return policy is normally 30 days. If you have specific questions about returns, eligibility, or specific product conditions, you can learn more in our help center linked below.
All products are backed by full manufacturer warranties. In addition, our team provides free lifetime technical support to assist you throughout the life of your system.
Yes! We offer a variety of flexible payment plans to fit any budget. Options include monthly financing with competitive interest rates, and some plans require no money down. You can apply during checkout and get approved in minutes.
If you're ready to place your order, you can go ahead and checkout online right now. If you have questions, our friendly team of solar experts are happy to assist and can take your order over the phone. If you're interested in financing, you will find the application at checkout online. So whatever is best for you, we are happy to accommodate.
Our team works hard to process all orders within 24-48 hours. Most products ship directly to your door using the quickest, most cost effective ground shipping services depending on size. You’ll receive tracking details and delivery coordination as soon as your order ships. Our average shipping times are anywhere from 3-7 days.
You’ll have free direct access to our support team via phone, email, and chat. Whether it’s setup guidance or troubleshooting years down the road, we’re here to help.
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