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eg4|SKU:BNDL-E0012-6-var-51823-4c47bc

EG4 12kPV Hybrid Inverter & 314Ah Wall-Mount Battery Bundle

Whole-Home Power Without the Grid

14.3kWh LiFePO4 storage — Substantial runtime for whole-home backup
Starts 5-ton AC loads — No soft-start required for heavy surge
Closed-loop battery communication — Inverter and battery sync automatically
10ms transfer time — Seamless switchover during grid failures
Multiple system configurations — Scale from one to six batteries
  • FREE System Design Consultation -- Engineers size your system for actual consumption
  • FREE Shipping -- LTL freight included on large system bundles
  • Compatibility Guarantee -- Components pre-vetted to work together

Price range: $6,890.95 through $27,993.95

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In the box

  • EG4 12kPV Hybrid Inverter
  • EG4 48V 314Ah Wall-Mount Indoor Battery
EG4 12kPV Hybrid Inverter & EG4 314Ah 16kW Indoor Wall-Mount Battery Bundle
EG4 12kPV Hybrid Inverter & 314Ah Wall-Mount Battery Bundle
$6,890.95 – $27,993.95Price range: $6,890.95 through $27,993.95

Whole-Home Power Without the Grid

This bundle pairs the EG4 12kPV Hybrid Inverter with a 14.3kWh wall-mount battery for serious off-grid and backup power. Closed-loop communication between inverter and battery simplifies setup and optimizes charge cycles. The system handles a 5-ton AC start, sustains a 4,000W load imbalance for 30 minutes, and transfers in 10ms — keeping your home running through outages or full grid-independent living. Scalable from one battery up to six, this is a field-tested foundation you build on.

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5-Ton AC Start
Dual Fire Arrestors
No External Busbars
Integrated Self-Heating
14.3kWh
Battery Capacity
10ms
Transfer Time
134A
Surge Capacity
No Mix-and-Match Guesswork — Pre-Vetted for True Off-Grid Independence

No Mix-and-Match Guesswork — Pre-Vetted for True Off-Grid Independence

Grid-tied systems marketed as 'energy independence' go dark the moment the utility fails — that defeats the entire point. This bundle is engineered for genuine off-grid operation: the 12kPV manages solar, battery, and generator input simultaneously, keeping your home powered regardless of grid status. At Off Grid Vault, every system package is pre-vetted for component compatibility. The inverter communicates directly with the battery BMS through closed-loop protocol — no external busbars, no mismatched voltage, no wondering if your components will actually talk to each other. We spec every kit the way we would install it on our own cabin.

Start Heavy Loads Without Compromise

Start Heavy Loads Without Compromise

The 12kPV handles up to a 4,000W load imbalance for 30 minutes and delivers 134A surge capacity — enough to start a 5-ton air conditioner without a soft-start device. For homesteads running well pumps, compressors, or shop equipment simultaneously, this inverter does not clip under real-world demand. The 10ms transfer time with RSD/ESS shutdown compliance protects sensitive electronics during switchover, so your refrigerator, medical equipment, and network stay online through outages. This is field-tested surge handling built for actual household loads, not laboratory ratings.

14.3kWh LiFePO4 Storage Built for Indoor Installation

14.3kWh LiFePO4 Storage Built for Indoor Installation

The 48V 314Ah wall-mount battery delivers 14.3kWh of lithium iron phosphate energy with integrated self-heating that keeps the cells operational during low-temperature conditions — a critical feature for northern climate cabins and winter outages. Dual on-board fire arrestors provide fail-safe protection against thermal runaway, meeting the safety standard you expect from LiFePO4 chemistry. Four positive and four negative terminals eliminate the need for external busbars when paralleling batteries, and side knockouts keep cable runs clean between units. Closed-loop communication with the 12kPV means the battery state of charge, temperature, and health are monitored in real time through the inverter interface.

Is This Bundle Right for You?

This bundle is designed for whole-home backup and off-grid residential systems. Confirm compatibility with your setup.

  • Home requires 120V/240V split-phase power
  • Battery bank scales from 1 to 6 units in parallel
  • Indoor wall-mount installation with adequate ventilation

Built for Real-World Demand

From full off-grid homesteads to whole-home backup during grid failures, this bundle handles the loads that matter.

Whole-Home Backup
Hybrid Solar Systems
Off-Grid Homesteads
Light Commercial Use

Full specifications

At a glance

Dimensions
See product page
Power
48V
Compliance
RSD/ESS shutdown compliance
Warranty
See product page
Full specifications16 data points across 4 categories

Dimensions

Inverter DimensionsSee product page
Battery DimensionsSee product page

Power & Performance

Inverter ModelEG4 12kPV Hybrid Inverter
Battery ModelEG4 48V 314Ah Wall-Mount Indoor Battery
Battery Capacity14.3kWh
Battery Voltage48V
Load Imbalance Handling4,000W for 30 minutes
Surge Capacity134A
Transfer Time10ms
AC Start Capability5-ton air conditioner without soft-start
Terminal Configuration4 positive, 4 negative

Materials

Battery ChemistrySee product page
Enclosure TypeIndoor Wall-Mount

Compliance & Warranty

Safety ComplianceRSD/ESS shutdown compliance
Thermal ProtectionDual on-board fire arrestors
WarrantySee product page

The Off Grid Vault Promise

Every system package we sell is vetted, matched, and backed by people who actually build off-grid.

Compatibility GuaranteeEvery component in this bundle is pre-vetted to work together. No guessing, no mismatched protocols.
Free ShippingShips free via LTL freight — threshold delivery included, no surprise freight charges.
30-Day Performance GuaranteeIf it doesn't perform as specified, we make it right — uninstalled returns accepted within 30 days.
★★★★★
“I replaced a grid-tied system that went dead during a 3-day ice storm. This EG4 bundle handled my well pump, refrigerator, and heat tape the entire time without issue. The closed-loop setup between inverter and battery was genuinely plug-and-play. Wish I had done this years ago instead of paying for a system that only worked when the grid was up.”
F
First L.Bozeman, MT

EG4 Home Power Bundle – EG4 12kPV Hybrid Inverter & 48V 314Ah Wall-Mount Battery

This bundle combines the EG4 12kPV Hybrid Inverter with the EG4 48V 314Ah Wall-Mount Indoor Battery to create a powerful, space-efficient energy storage solution for whole-home backup, hybrid solar, or off-grid systems. The 12kPV inverter delivers strong split-phase output with advanced solar and battery integration, intelligently managing power from solar, batteries, and the grid to keep your home running smoothly during outages or peak usage periods. Paired with the 14.3kWh wall-mounted battery, this system provides substantial usable energy for extended runtime while maintaining a clean, organized installation.

Designed for reliable indoor installation, the Wall-Mount Indoor battery offers high-capacity lithium energy storage with smart battery management and long cycle life. Closed-loop communication between the inverter and battery simplifies setup, improves efficiency, and ensures optimized performance. Together, this bundle delivers a scalable, future-ready solution that supports energy independence, reduced utility reliance, and dependable backup power, all in a streamlined package built for real-world residential and light commercial applications.


EG4 12kPV Hybrid Inverter Features

The EG4 12kPV shares the same design and software as the flagship EG4 18kPV hybrid inverter. The 12kPV is more compact and affordable, and its modular design allows for easy expansion.It utilizes up to 12kW of solar input, supplying up to 8kW for powering loads while using the remainder to charge your batteries. Designed for residential and light commercial applications.

  • Load & surge handling manages up to a 4,000W imbalance for 30 minutes and 134A surge capacity for demanding applications
  • 10ms transfer time with RSD/ESS shutdown compliance to protect equipment and meet safety standards.
  • High Surge Loads capability allows you to start a 5-ton air conditioner without soft-start
  • Hybrid split phase design supports off-grid, grid-tied with battery backup, and generator input for versatile power solutions.


EG4 Indoor WallMount Battery Features

The WallMount Indoor 14.3kWh batteries are ideal for low-voltage residential indoor energy storage applications. The batteries use an intelligent Battery Management System (BMS) that can monitor and record the voltage of each cell along with the current, voltage, and temperature of the module in real-time.

  • Optional ESS disconnect allows for one-touch shutdown of all batteries and inverters equipped with rapid shutdown capability
  • Includes multiple terminals (4 positive, 4 negative), eliminating the need for external busbars when connecting multiple batteries or inverters
  • Integrated self-heating automatically heats the battery during low temperature settings to keep the battery operational
  • Dual on-board fire arrestors offer fail-safe protection against thermal runaway


EG4 280Ah Indoor Buildable Conduit Box Features

The EG4 Indoor Buildable Conduit Box allows users a simple and effective way to protect cables and connections between battery and inverter. The conduit box is designed to pair the EG4 WallMount Indoor 280Ah Lithium Battery with either the EG4 FlexBOSS18, FlexBOSS21, 18kPV, 12kPV, 6000XP, or the 12000XP inverters.

  • Direct fit combination of EG4 FlexBOSS18, FlexBOSS21, 18kPV, 12kPV, 6000XP, or the 12000XP inverters with EG4 WallMount Indoor 280Ah Lithium Batteries
  • The unit is equipped with side knockouts for battery-to-battery cable runs between paralleled batteries.
  • Designed for hassle-free installation, allowing for a clean and efficient setup
  • Box size allows for proper wire spacing per NEC code


Your Satisfaction with EG4 is Guaranteed:

  • 10-Year Limited Warranty
  • Free Shipping & Lowest Price Guarantee

Additional information

System Size

1 EG4 12kPV + 1 x 314A WallMount Indoor Battery, 1 EG4 12kPV + 2 x 314A WallMount Indoor Battery, 1 EG4 12kPV + 3 x 314A WallMount Indoor Battery, 2 EG4 12kPV + 4 x 314A WallMount Indoor Battery, 2 EG4 12kPV + 6 x 314A WallMount Indoor Battery

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Frequently Asked Questions

At $6,891, this system offsets roughly $250–$300 in monthly utility costs for a typical home, delivering a payback in under 2.5 years. After that, the monthly savings are yours indefinitely. Unlike grid-tied systems that stop producing during outages, this bundle keeps your home fully powered regardless of utility status — so you are not just reducing a bill, you are eliminating dependence on the grid entirely. Finance with Affirm and start seeing ROI from month one.
Off Grid Vault is an authorized EG4 dealer, so warranty claims are handled directly through us — not through a ticket queue. We act as your point of contact for any manufacturer warranty matter on both the 12kPV inverter and 314Ah battery. This is the same reason buyers choose us over generic marketplace listings: accountability from people who actually understand off-grid power systems, not a returns department guessing at compatibility.
This bundle is available in multiple configurations — from a single inverter with one battery up to two inverters with six batteries. Tell us your daily kWh consumption, square footage, and critical loads, and our engineers will confirm the right configuration for your situation. The 12kPV supports off-grid, grid-tied with battery backup, and generator input, so it adapts to your architecture rather than forcing you into one approach. Free system design consultation is included with every purchase.
The EG4 Wall-Mount Indoor battery uses lithium iron phosphate chemistry with integrated self-heating that activates automatically during low-temperature conditions, keeping cells operational when other batteries would refuse to charge. Dual on-board fire arrestors provide fail-safe protection against thermal runaway — a critical safety feature for indoor installations. Combined with the closed-loop communication that monitors cell health, temperature, and state of charge in real time, this battery is built for long-cycle, off-grid-proven reliability in real-world conditions.
Lead times vary based on current EG4 inventory levels. We ship free on all orders, including LTL freight for large system bundles. Contact us before ordering and we will provide an accurate delivery estimate based on your location and the specific configuration you select. We would rather give you an honest timeline upfront than promise a date we cannot meet.
Yes. The 314Ah Wall-Mount Indoor battery includes side knockouts for cable runs between paralleled units, and four positive and four negative terminals eliminate the need for external busbars. The system size options extend up to two inverters and six batteries, so you can start with one battery and scale as your consumption grows. Closed-loop communication means added batteries are recognized by the inverter automatically. We recommend consulting with our engineers before expanding to confirm your inverter can support the additional capacity.
SKU: BNDL-E0012-6 Categories: , Brand:

The Off Grid Vault Promise

Every system package we sell is vetted, matched, and backed by people who actually build off-grid.

Compatibility Guarantee Every component in this bundle is pre-vetted to work together. No guessing, no mismatched protocols.
Free Shipping Ships free via LTL freight — threshold delivery included, no surprise freight charges.
30-Day Performance Guarantee If it doesn't perform as specified, we make it right — uninstalled returns accepted within 30 days.

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About eg4 Inverter Bundle

eg4 is a trusted manufacturer of premium inverter bundle. OffGridVault is an authorized dealer offering the full eg4 lineup with free delivery, price match guarantee, and expert support.

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