BigBattery
BigBattery is a privately held Texas-based manufacturer selling LiFePO4 batteries, inverters, and energy storage systems direct-to-consumer to residential, golf cart, RV, marine, and commercial customers across the U.S. and Canada.
- Company typePrivate
- Founded2011
- HeadquartersChatsworth, United States
- Headcount251–500
- GTM typeB2B and B2C
- OfferingHardware or Manufacturing
What BigBattery does
BigBattery, Inc. is a privately held U.S. manufacturer and direct-to-consumer retailer of LiFePO4 (lithium iron phosphate) batteries, inverters, and complete energy storage systems, founded in 2011 and headquartered at 400 Maple St., Commerce, Texas. The company designs, engineers, and assembles its products domestically under ISO 9001:2015 certification, with a portfolio organized around proprietary battery brands (ETHOS modular home battery, NEXUS server rack battery, HUSKY 2 multi-voltage battery, EAGLE 2 golf cart battery, RAPTOR 2 high-voltage battery) and the EG4 inverter sub-brand, complemented by compatible third-party inverters from Victron, Growatt, and AIMS Power, plus accessories (chargers, cables). The technology stack centers on an open-communication BMS architecture supporting CANBus/RS485/RJ45 protocols, automatic self-heating for cold-weather operation, integrated aerosol fire suppression on NEXUS, and modular stackable designs scaling from 5kWh residential to 512kWh commercial deployments, with safety compliance across UL 9540, UL 9540A, UL 1973, UL 1741, UN38.3, and CEC listings.
The company operates a primarily direct-to-consumer e-commerce business through bigbattery.com, supplemented by U.S.-based phone sales, a separate Canadian channel at BigBattery.ca, and indirect solar installer/dealer partnerships. Revenue is generated predominantly through one-time hardware sales (golf cart batteries from $650; home storage kits starting at $2,780; commercial OMNI-260 priced by quote), augmented by OEM/B2B manufacturing services and enabled by financing partnerships with Klarna, Affirm, and Sungage Financial. Customer segments span residential homeowners (primary), golf cart owners, RV/van lifers, marine users, off-grid enthusiasts, and industrial/material-handling operators, with over 50,000 American customers served and 180,000+ products installed cumulatively. The company carries no parent organization, no disclosed funding rounds, and no public market listing.
BigBattery firmographics
Firmographics- Name
- BigBattery
- Legal name
- BigBattery, Inc.
- Website
- https://bigbattery.com
- Company type
- Private
- Founded year
- 2011
- Operating status
- Operating
- Headcount range
- 251–500 employees
- Short description
- BigBattery is a privately held Texas-based manufacturer selling LiFePO4 batteries, inverters, and energy storage systems direct-to-consumer to residential, golf cart, RV, marine, and commercial customers across the U.S. and Canada.
- Ownership category
- akta.pro rank
BigBattery industry classification
Industry- Product category
- Lithium-Ion Battery Energy Storage Systems
- NAICS
- Battery Manufacturing (33591)
- SIC
- Electronic & Other Electrical Equipment (No Computer Equip) (3600)
- akta.pro primary industry
- Battery Modules & Packs (Industrial/Commercial pack assembly) (IMAGAHAB)
- akta.pro secondary industry
- E-Mobility Batteries & Swappable Packs (Consumer) (CRACASAI)
Keywords
Where BigBattery is headquartered
LocationHeadquarters
- HQ city
- Chatsworth
- HQ country
- United States
- HQ region
- North America
Offices1 record
Markets served
BigBattery business model
Business model- GTM type
- B2B and B2C
- Offering type
- Hardware or Manufacturing
- Cost components
- Supply Chain, Operations, Personnel, Marketing or Sales, Technology or R&D, Infrastructure
Revenue model
- Battery and Energy Storage Hardware Sales: Primary revenue stream from selling LiFePO4 batteries, inverters, chargers, and complete energy storage systems (ESS) directly to consumers and businesses. Products range from individual batteries ($650-$3,750) to complete kit systems ($1,580-$8,415+), with commercial C&I systems (OMNI-260 at 261kWh/125kW) priced via quote. Revenue is predominantly one-time hardware purchase, with some recurring professional installation services.
- Professional Services and Installation: BigBattery offers B2B/OEM manufacturing services for custom battery solutions and commercial installations. The company also provides system design consultation through U.S.-based experts, contributing to system revenue on larger projects.
- Financing Partnerships: Revenue is facilitated through financing partnerships with Klarna (consumer BNPL) and Sungage Financial (installer/solar financing), which enable higher-value purchases. BigBattery earns indirectly through increased conversion rates rather than direct financing revenue.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Unit Pricing | Pay-as-you-go | Entry-level golf cart and utility batteries |
| Unit Pricing | Pay-as-you-go | Mid-range battery and inverter kits |
| Unit Pricing | Pay-as-you-go | Home energy storage systems (ESS) |
| Other | Multi-year contract | Commercial and industrial energy storage |
| Unit Pricing | Pay-as-you-go | Accessories and components |
Go-to-market motion3 records
Distribution channels4 records
Marketing channels7 records
BigBattery product offering
Product offeringCore offering
BigBattery designs, manufactures, and sells LiFePO4 lithium batteries, hybrid inverters, and complete energy storage systems directly to consumers, installers, and commercial customers in the U.S. Its product portfolio includes the ETHOS, NEXUS, HUSKY 2, EAGLE 2, and RAPTOR 2 battery families plus the EG4 inverter line, organized by voltage (12V-72V) and application (residential solar, off-grid, golf cart, RV/van, marine, industrial).
Product overview
BigBattery is a U.S.-based manufacturer and direct-to-consumer seller of LiFePO4 lithium batteries, inverters, and complete energy storage systems. The product portfolio centers on proprietary battery brands (ETHOS modular home battery, NEXUS server rack battery, HUSKY 2 multi-voltage battery, EAGLE 2 golf cart battery, RAPTOR 2 high-voltage battery) and the EG4 inverter sub-brand. These are complemented by third-party compatible inverters from Victron, Growatt, and AIMS Power, plus accessories like chargers and cables. The ecosystem is organized around voltage configurations (12V, 24V, 36V, 48V, 72V) serving applications including home solar/grid-tied, off-grid, golf carts, RVs/vans, marine, and industrial/commercial equipment. The company also offers commercial-scale solutions like the OMNI-260 C&I ESS (261kWh/125kW) for facilities. All products ship from the Texas manufacturing facility and are backed by 10-12 year warranties.
Differentiator
Problem solved
Functional benefit
Brands
- ETHOS: Flagship home energy storage solution with modular 5.12kWh LFP battery modules for grid-tied and off-grid use.
- NEXUS
- HUSKY 2
- EAGLE 2
- RAPTOR 2
- EG4
Products and services
- BigBattery ETHOS Modular stackable LiFePO4 home battery system with 5.12kWh per module, IP65/NEMA 4X rating, UL 9540 certification, and advanced BMS with auto-balancing. Scales from 10.24kWh to 80+ kWh with parallel connections. Designed for both grid-tied and off-grid home energy storage applications.
- BigBattery NEXUS High-capacity 48V 14.3kWh floor-standing LiFePO4 server rack battery with self-heating function and integrated aerosol fire suppression. Scalable up to 214.5kWh through 15 parallel connections. Designed for off-grid homes, cabins, and commercial backup power applications.
- HUSKY 2 INV Integrated LiFePO4 battery with built-in inverter communications available in 12V (400Ah, 5.12kWh), 24V (200Ah, 5.12kWh), and 48V (100Ah, 5.12kWh) configurations. Features IP65 rating, self-heating, advanced BMS, and low-voltage reset technology. Compatible with Victron, EG4, AIMS, and Growatt inverters.
- HUSKY 2 PWR High-power 48V LiFePO4 battery (100Ah, 5.12kWh) without inverter communications. IP65-rated, self-heating, with advanced BMS for golf cart, RV, and industrial applications. Tier-1 cells with 6,000+ cycle life at 80% depth of discharge. Supports Bluetooth app monitoring via the BigBattery HUSKY 2 app.
- EAGLE 2 Compact drop-in replacement LiFePO4 battery in GC2/T-105 form factor for golf carts and light electric vehicles. Available in 12V (32Ah, 1.63kWh), 24V (64Ah, 1.63kWh), 36V (40Ah, 1.54kWh), and 48V (32Ah, 1.63kWh) configurations. Features advanced BMS and LED state of charge indicator. Universal compatibility with Club Car, E-Z-GO, Yamaha, and ICON carts.
- RAPTOR 2 High-voltage 72V LiFePO4 battery (100Ah, 7.68kWh) for golf carts, transport vehicles, and industrial equipment. Features LED state of charge indicator, 5,000+ cycle life, and durable energy-dense form factor.
- EG4 Wallmount 280Ah All Weather Outdoor-rated 48V 14.3kWh wall-mount LiFePO4 battery with IP65/NEMA 4X rating, 200A output, internal self-heating, EMP protection, and emergency stop. UL 9540 certified. 10-year warranty. Scalable to 85.8kWh.
- EG4 Wallmount 314Ah All Weather High-capacity outdoor-rated 48V 16kWh wall-mount LiFePO4 battery with IP67 enclosure, cold-weather heaters, Bluetooth/Wi-Fi monitoring, and smart BMS with active cell balancing. Scalable to 512kWh with FlexBOSS18 inverter. UL 1973 and UL 9540A certified. 10-year warranty.
- EG4 Wallmount 314Ah Indoor High-capacity indoor 48V 16kWh wall-mount LiFePO4 battery with natural cooling, 200A output, self-heating, and advanced BMS. Compact IP20 design. Compatible with FlexBoss18 and FlexBoss21 inverters. UL 1973 and UL 9540A certified. 10-year warranty.
- EG4 12kPV Hybrid Inverter All-in-one hybrid inverter with 8kW continuous AC output, 12kW PV input, 2 MPPTs, UL 1741 certified. Supports up to 10 parallel units (80kW total). Features Gen port, AC coupling, and smart ports. Closed-loop communication with BigBattery batteries.
- EG4 FlexBOSS18 Hybrid Inverter High-capacity hybrid inverter with 13kW continuous AC output, 18kW PV input, 2 MPPTs, EMP-hardened design, UL 1741 certified. Supports up to 10 parallel units (130kW total). Seamless battery integration.
- EG4 FlexBOSS21 Hybrid Inverter High-capacity hybrid inverter with 16kW continuous AC output, 21kW PV input, 3 MPPTs, EMP-hardened design. Supports up to 10 parallel units (160kW total). Expanded PV input for larger solar arrays.
- EG4 6000XP Off-Grid Inverter Off-grid inverter with 6kW continuous output, 8kW PV input, 2 MPPTs. Smart control with seamless communication. Supports up to 16 parallel units (96kW total). 5-year warranty.
- EG4 12000XP Off-Grid Inverter High-capacity off-grid inverter with 12kW continuous output, 24kW PV input, 2 MPPTs. High frequency split phase design with remote control. Supports up to 6 parallel units (72kW total). 5-year warranty.
- APEX-6.5K Off-Grid Inverter Off-grid inverter with 6.5kW output, 10kW PV input. Compatible with ETHOS and NEXUS batteries. Designed for residential and commercial off-grid applications.
- APEX-10K Off-Grid Inverter Off-grid inverter with 10kW output, 11kW PV input. Compatible with ETHOS and NEXUS batteries for larger residential and commercial off-grid systems.
Quantifiable outcome
- 12-year warranty vs. 1-5 years typical for competitors
- +4 more outcomes
Companies that use BigBattery
Customer profileNamed customers6 records
Segments6 records
BigBattery technology and API
TechnologyTechnology focussed Yes
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Integration12 records
Feature7 records
BigBattery partnerships and signals
Strategic signalPartnerships
Three partnerships are on record, tiered core and minor.
- Victron EnergycoreBigBattery products feature closed-loop communication integration with Victron inverters including MultiPlus-II series (12V, 24V, 48V). The HUSKY 2 INV VICTRON KIT bundles BigBattery batteries with Victron inverter/chargers for seamless power optimization and smart monitoring in the Victron ecosystem.
- EG4coreEG4 is a key inverter brand partner with BigBattery. ETHOS and NEXUS batteries feature closed-loop communication with EG4 inverters including 12kPV, FlexBOSS18, FlexBOSS21, 6000XP, and 12000XP. BigBattery also sells EG4-branded products including EG4 WallMount batteries.
- BigBattery.caminorSeparate Canadian distribution channel at BigBattery.ca for customers in Canada. Canadian customers contact +1 (844) 448-7664 or [email protected]. Note: BigBattery.com does not ship internationally.
Scale indicators6 records
Recent moves6 records
Expansion highlights6 records
BigBattery competitors and assessment
Company assessmentBroad incumbents
- Tesla (Energy / Powerwall): Tesla Energy sells the Powerwall 3 residential battery and Powershare/Curb connectivity products, directly competing with BigBattery in residential ESS. Tesla has substantially larger brand recognition, captive cell production, and installer network scale, making it the dominant broad incumbent against which all DTC players like BigBattery must differentiate.
- Generac (PWRcell): Generac sells the PWRcell residential battery system and operates a much broader backup power portfolio including generators and industrial systems. Its PWRcell competes directly with BigBattery's residential ESS offerings but benefits from Generac's large installer base and established brand recognition in backup power.
- SolarEdge Energy Bank: SolarEdge sells the Energy Bank residential battery system as part of its broader solar inverter portfolio, directly competing with BigBattery's residential ESS. SolarEdge has deeper installer penetration through its DC-optimized inverter installed base, positioning it as a broad incumbent that bundles storage with existing solar deployments.
Direct peers
- Enphase Energy: Enphase sells the IQ Battery 5P/10P residential storage systems, directly competing with BigBattery's ETHOS and NEXUS products. Both target the same U.S. residential solar installer channel with AC-coupled LiFePO4 storage and emphasize safety certifications, though Enphase has deeper installer penetration via its microinverter install base.
- FranklinWH: FranklinWH sells the aPower 2 and aGate residential energy storage system with whole-home backup. Like BigBattery, it emphasizes LiFePO4 chemistry, modular scalability, and UL 9540A certification. FranklinWH pursues an installer-led channel with strong North American residential focus, making it one of the closest direct peers to BigBattery's ETHOS product line.
- BattleBorn Batteries: BattleBorn is a U.S.-based LiFePO4 battery manufacturer that directly competes with BigBattery across the same RV, marine, off-grid, and golf cart verticals. Both companies emphasize drop-in lead-acid replacement form factors, similar price points, comparable cycle life claims, and competing warranty terms (10-year BattleBorn vs. 12-year BigBattery).
- LiTime (Ampere Time): LiTime is a direct-to-consumer LiFePO4 battery brand selling drop-in replacement batteries for RV, marine, golf cart, and off-grid applications at price points that overlap BigBattery's EAGLE 2 and HUSKY 2 lines. Both companies emphasize online sales, LiFePO4 chemistry safety, and similar warranty terms, making LiTime the closest pricing/positioning direct peer.
- EG4 Electronics: EG4 is both a strategic partner and direct competitor, with BigBattery reselling EG4 inverters and batteries. EG4 sells its own WallMount batteries, 12kPV/FlexBOSS inverters, and increasingly vertical integrated ESS products targeting the same U.S. residential and off-grid installer channel as BigBattery.
- Sonnen (Enphase subsidiary): Sonnen, now part of Enphase, sells the sonnenCore residential battery system with focus on safety, longevity, and modular scalability comparable to BigBattery's ETHOS line. Sonnen competes on similar UL certifications and installer channels, with stronger brand recognition in European and select U.S. markets.
- EcoFlow: EcoFlow sells portable power stations, DELTA whole-home battery systems, and Smart Home Panel products targeting residential ESS, off-grid, and RV markets that directly overlap BigBattery's verticals. Both emphasize LiFePO4 chemistry, modular scalability, and DTC/installer channel sales, with EcoFlow offering stronger brand awareness in portable power stations.
Market position
Strengths5 records
Weaknesses5 records
Competitive moat5 records
Key risks6 records
Key highlights7 records
Customer concentration
BigBattery social profiles
Digital presenceBigBattery compliance and trust
Trust signalCompliance7 records
BigBattery financial estimates
Financial estimateRevenue estimate
Valuation estimate
BigBattery leadership team
Management profileNumber of profiles
BigBattery funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
BigBattery M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about BigBattery
What does BigBattery do?
BigBattery designs, manufactures, and sells LiFePO4 lithium batteries, hybrid inverters, and complete energy storage systems directly to consumers, installers, and commercial customers in the U.S. Its product portfolio includes the ETHOS, NEXUS, HUSKY 2, EAGLE 2, and RAPTOR 2 battery families plus the EG4 inverter line, organized by voltage (12V-72V) and application (residential solar, off-grid, golf cart, RV/van, marine, industrial).
Is BigBattery a public or private company?
BigBattery is a private company. It is classified as founder individual operated bootstrapped and is currently operating.
When was BigBattery founded?
BigBattery was founded in 2011. It employs 251 to 500 people.
Where is BigBattery based?
BigBattery is headquartered in Chatsworth, United States, in the North America region.
How does BigBattery make money?
Three revenue lines are on record. Battery and Energy Storage Hardware Sales are the primary driver. The others are professional Services and Installation and financing Partnerships.
Who are BigBattery's main competitors?
Broad incumbents on record are Tesla (Energy / Powerwall), Generac (PWRcell) and SolarEdge Energy Bank. Direct peers are Enphase Energy, FranklinWH, BattleBorn Batteries, LiTime (Ampere Time), EG4 Electronics, Sonnen (Enphase subsidiary) and EcoFlow.
Does BigBattery have an API?
No public API is recorded for BigBattery.
What industry is BigBattery in?
BigBattery's product category is Lithium-Ion Battery Energy Storage Systems. Its primary akta.pro industry code is IMAGAHAB, Battery Modules & Packs (Industrial/Commercial pack assembly), with a secondary code of CRACASAI, E-Mobility Batteries & Swappable Packs (Consumer). Its NAICS code is 33591 and its SIC code is 3600.