SKU: 51226778216

BigBattery NEXUS + APEX 6.5K Battery Storage Bundle [15kWh–45kWh] | Indoor Only | 10,000W PV Input / 6,500W AC Output | 5-Year Inverter + 12-Year Battery Warranty

$2040.75 $2267.50
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Description

BigBattery NEXUS + APEX 6.5K Battery Storage Bundle [15kWh–45kWh] | Indoor Only | 10,000W PV Input / 6,500W AC Output | 5-Year Inverter + 12-Year Battery WarrantyMeet the BigBattery NEXUS + APEX 6. 5K Battery Storage Bundlea clean, scalable ESS built for off grid power and serious backup performance. Pair the APEX 6. 5K split phase hybrid inverter with 13 NEXUS 15kWh LiFePO batteries to build 15kWh, 30kWh, or 45kWh of storage, all on a 48V platform. This bundle is designed to keep things simple: true 120 240V pure sine wave power, big solar input (10,000W total), and the flexibility to charge from solar plus

Meet the BigBattery NEXUS + APEX 6.5K Battery Storage Bundle—a clean, scalable ESS built for off-grid power and serious backup performance. Pair the APEX-6.5K split-phase hybrid inverter with 1–3× NEXUS 15kWh LiFePO₄ batteries to build 15kWh, 30kWh, or 45kWh of storage, all on a 48V platform.

This bundle is designed to keep things simple: true 120/240V pure sine wave power, big solar input (10,000W total), and the flexibility to charge from solar plus grid/generator when conditions change. On the storage side, NEXUS adds a rugged floor-standing design with built-in protections, self-heating for cold-weather charging, and integrated aerosol fire suppression—so you can build with confidence and scale as your power needs grow.

Key Features & Benefits

  • Choose your storage: 1×, 2×, or 3× NEXUS (15kWh–45kWh) - Build the capacity you need now and expand later without replacing your core system.

  • True split-phase 120/240V pure sine wave (50/60Hz) - Run essential circuits and larger appliances that require real 120/240V power.

  • 6,500W rated output (13,000VA max) - Strong output with surge capability for demanding loads.

  • 10,000W PV input with dual MPPT (5,000W + 5,000W) - Capture more solar and support larger arrays for greater day-to-day autonomy.

  • Solar + grid/generator charging support (2 AC inputs: Grid & Generator) - Stay powered when sunlight drops—charge and run loads through changing conditions.

  • Fast charging capability - Up to 140A solar charge and 80A grid/generator charge for quicker recharge cycles.

  • LiFePO4 + integrated BMS protections (NEXUS) - A safer, stable battery chemistry with built-in protection controls.

  • Cold-weather ready (NEXUS self-heating) - Improves charging reliability in colder environments.

  • Integrated aerosol fire suppression (NEXUS) - Adds an extra layer of safety inside the battery unit.

  • Wide battery operating temps - Charge 32°F–113°F, discharge -4°F–113°F for dependable seasonal performance.

  • 12-Year Warranty - Long-term coverage to protect your investment.

Specs in a Glance: 

Inverter (BigBattery APEX-6.5K)

  • Output: 6,500W rated, 13,000VA max

  • Output Voltage: 120/240 Vac split-phase

  • Battery Voltage: 48V nominal system, 40–60Vdc range

  • Solar Input: Dual MPPT (1+1), 5,000W + 5,000W, 18A + 18A, 125–450Vdc MPPT range, 550Vdc + 550Vdc Voc max

  • Max charging: 140A solar, 80A grid/generator, 140A hybrid

  • AC Inputs: 2 inputs (Grid & Generator)

  • Dimensions / Weight: 25.51 × 16.14 × 5.51 in, 48 lbs

  • Certifications: UL1741, RoHS, FCC Part 15 Class B, IEC62109-1/-2, EN61000 (per spec sheet)

  • Warranty: 5 years

Battery (BigBattery NEXUS 15kWh LiFePO4) — per battery

  • Usable Energy: 15kWh

  • Voltage: 48V system, 51.2V nominal

  • Capacity: 300Ah

  • Max Continuous Discharge: 140A (Max continuous power 7.6kW)

  • Peak Discharge: 270A (1s)

  • Communications: RS485 / RJ45 / CAN

  • Protection Rating: IP54

  • Installation: Indoor floor-standing

  • Dimensions / Weight: 19.7 × 27.5 × 15.7 in, ~315 lbs

  • Battery warranty: (Confirm) (not provided in the supplied specs)

What’s Included:

  • 1× BigBattery APEX 6.5K off-grid hybrid inverter

  • Choose: 1× / 2× / 3× BigBattery NEXUS 15kWh LiFePO4 battery

Ideal For:

  • Off-grid cabins, homesteads, and remote residences needing true 120/240V split-phase power

  • DIY-friendly ESS builds that need scalable storage (15–45kWh) now, with room to expand later

  • Hybrid systems using solar + generator charging capability

User Manual / Documents:

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 51226778216

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4.8 ★★★★★
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Product Reviews
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Verified Purchase
christine
Battle Creek, US
★★★★★ 5
Theo of Golden
Format: Kindle
Amazingly beautiful. This is a deeply moving story of humanity. I saw many reviews and I didn't let the negative aspect impact my decision, in fact I think it motivated me to see for myself, I am so glad I did. Uplifting, inspiring and deeply moving. This is a book to be read more than once, its ment to be shared. A must read. Enjoy
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 25, 2026
M
Verified Purchase
Megan
Grantham, US
★★★★★ 5
⭐️ A Beautifully Written Story That Stays With You ⭐️
Format: Paperback, Format: Paperback
Theo of Golden by Allen Levi is one of those rare books that quietly settles into your heart and lingers long after the final page. The writing is intelligent, thoughtful, and beautifully crafted, with storytelling that feels both timeless and deeply human. The characters are wonderfully developed and feel incredibly real, but Theo himself is unforgettable. I found myself learning so much from him along the way about life, people, kindness, and perspective. Allen Levi has a gift for creating a world that feels warm, meaningful, and genuine. This was a truly lovely read, full of wisdom, heart, and beautiful prose. An easy five stars for me. 📚✨
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 27, 2026
M
Verified Purchase
mavo
Boise, US
★★★★★ 5
A story of art, music and writing
Format: Kindle
Like the face of heaven. That’s how I see Theo, and I hope this will be a movie. “Theo of Golden” is the debut novel by Allen Levi. He was writing as a personal challenge and just doing some scenes. He began writing in 2019-2020. He had been a songwriter and lawyer. He has no connection to Portugal, which is mentioned in the book quite a bit and led me to try Port wine. This book will lead me to do a lot of things. Theo is a supremely interesting man! More on that other familiar interesting man in a later post. The book will make you want to look at the faces of people. Use a gaze that calms and loves. Be kind and generous. Greet people. Be less fearful and exchange stories. Be attentive. Love people up close. Invest in the art of living. Be beautiful, useful and pleasurable. All which I should be doing, but will now do for Lent. Theo listened with genuine interest, adoringly, encouraging and with gratitude. Newborns look for their mother’s face, a particular gaze that calms, loves and welcomes them. Someone they recognize, run to greet and someone to bond with. Levi signs the books “With thanks for the Theo in you.” He greets kids at a high school three days a week. He reads to second graders. He doesn’t mind being around people not like him. The coffee shop setting is a real place in Columbus, Ga. It’s called Fountain City Coffee. In picking bestowals of the sketches there, Theo looked for someone lost, weary, worried or troubled that the gift would encourage or help. I got to hear him in a Zoom. A group of women from Vermont who lost their daughters came to Georgia on a pilgrimage. He was a steward of clean rivers and water and said the river still flows after death. He went through a “walking season” in losing his daughter. In a book about knowing a person, it is mentioned that a bench is a good way to do this. 7 p.m. was Theo’s meeting time with the strangers for bestowals and ended up being the time of the funeral. He also mentioned “Think Little” by Wendell Berry. Do so and if everyone does, it spreads. Levi was born in 1956. His dad is 98. His mother passed and he lost his brother, whom he called a clone of Theo, at 55. His dad was a forester, explaining his interest in nature. Springtime is an end with a future, said Theo. One character named Tony runs the Verbivore book store and has the Penny Loafers out there because they haven’t spent a penny and they majored in loafing. Theo and Tony end up having Port together and he told Theo is Viet Nam stories. The Penny Loafers were better than a room full of Senators. They lie. Tony ends up being more of a believer of Jesus at the end because he wasn’t before Theo. James Ponder has no degrees hanging in his office. Note the “ponder” mentions throughout. He is a dispenser of advice, secret keeper and agent of calm. Secretary Mrs. Gidley was suspicious of Theo at first but comes around. Ponder was Theo’s landlord and mentioned the 18-inch railing and three flights of stairs before the 86 year old decided to live there. Kendrick reminds me of the custodian who won “America’s Got Talent,” who has an ill daughter Lamisha, who wants to be a physical therapist or artist in the end. Her education will be paid for by Theo as were some of her medical bills. Maria Menendez is the daughter of the “little man” who killed Theo’s wife and daughter in an accident. Maria had cancer. I don’t want to give away too much, but Theo decided to love Asher, the sketch artist, with two hearts. And there is much more to that. Simone wears a wardrobe that honors music on stage and guests who come to listen did the same. Cello intricacies became fascinating to me and I looked up some of the music mentioned. His bow was a gift from Theo. He played Fado for Theo at his concert. It ended up being a requiem with three characters, Kendrick and Basil, the busker. Simone’s parents were there and I wasn’t clear if Theo sprang for their trip. At the end, Basil studies to get a doctorate in American literature. Katherine is the reporter who respects Theo’s wishes while many people she interviews are praise seekers and applause junkies. He was a friend, not a headline. Ellen rides a bike and I’ll just call her different. He gave her a foldable handsaw, cordless sander, drill and wood burner to make feather boxes. I have made one because of this book. She had $1,600 to her name from selling them, but gave the money to the cello fund after she and Simone were assaulted and the perpetrator was never caught. Cleave is the poisonous guy—like a snake, hemlock, black widow or “words with no wisdom guy.” All but Cleve show community in sitting on the same row or pew. They all have sparks of hope. I loved this line: We walk all roads, long and winding. Road to ruin. Easy Street. Road less traveled. I’m so mad that my notes from Chapter 10-28 somehow disappeared. I may reread. This post would be longer. I probably have a dozen favorite books and just added this one.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 5, 2026
W
Verified Purchase
Walter Desmond
Natrona Heights, US
★★★★★ 5
Recognizing the Hearts that Burn Within Us
Format: Paperback
Yes, Theo of Golden does, at times, border on the melodramatic and the sentimental. It can be repetitive. It can take an awfully long time to make its point. And yet, the novel speaks very significantly of the need for love, compassion, generosity and forgiveness---in a world that is not always kind, in a world where many of us carry secret burdens---where sadness (mixed with intermittent joy) might be viewed as a universal human affliction. Theo of Golden is, overall, a book of glad tidings. An end with a future. Thoughtfully, warmly and intelligently written. A novel that often addresses the beauty of Art, most notably painting and music. A novel in which I learned what a fado is. In fact, I learned a lot from this novel. Unlike some readers, I did not see the book as misogynistic or xenophobic. I didn't necessarily see it as "Christian fiction"---unless you mean doing good, striving for strength of spirit and understanding the connection between "the ultimate and the proximate, the wide grace and the narrow way." Finally, I don't view the novel's conclusion as disappointing, but simply as falling action and resolution. It is, after all, a very traditionally structured work. Kudos to the author Allen Levi for having written an initially self-published book that was later picked up by a major publishing house. That is, indeed, a rarity.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 17, 2026
W
Verified Purchase
wound nurse 143
Belleville, US
★★★★★ 5
Sparkle easy tarpaper towels gets the job done
Package Size Name: Double, Size: 6 Double Rolls (Pack of 1), Package Size Name: Double, Size: 6 Double Rolls (Pack of 1)
Performs as described. Not as durable as Bounty but is worth the money. It is soft. Appearance is noted with a design. The quantity is appropriate for each roll and for the price. I use for clean ups in the kitchen, light spills and clean ups. Would buy again. Have purchased many many times. Reliable and consistent company the towel tear off easily every 8” which is a great way to avoid waste especially when cooking.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 16, 2026

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