EG4
EG4 WallMount 314Ah All-Weather 32kWh Grid-Tied Battery & Inverter Kit — 2 All-Weather WallMount Batteries + 1 FlexBOSS21 Hybrid Inverter
EG4 WallMount 314Ah All-Weather 32kWh Grid-Tied Battery & Inverter Kit — 2 All-Weather WallMount Batteries + 1 FlexBOSS21 Hybrid Inverter
SKU: K0281
- Regular price
- $11,624.94
- Regular price
- Sale price
- $11,624.94
- Unit price
- per
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- Warranty information is listed in this product's details.
More solar headroom for a home that expects more from backup power.
This clearly defined kit pairs 32kWh of nominal storage in 2 weather-ready wall-mounted batteries with the EG4 FlexBOSS21. It gives homeowners and installers a practical foundation for solar self-consumption, backup planning and permitted grid interaction—without forcing the buyer to decode the battery and inverter quantities.
Why it earns a closer look
Useful capability, explained in buying language.
Storage sized to the project
32kWh of nominal capacity gives the installer a concrete starting point for load and runtime planning.
AC output capability
12kW battery / up to 16kW with PV from the EG4 FlexBOSS21, with operating limits stated separately from battery capacity.
Prepared for demanding placement
IP67 batteries and a NEMA 4X inverter support properly designed all-weather installations.
Use solar on your terms
Compatible hybrid operation can prioritize self-consumption, backup and permitted grid interaction after commissioning.
Where it fits
- Residential solar self-consumption and time-of-use planning
- Whole-home or essential-load backup designed by a qualified installer
- New or retrofit hybrid systems using the exact documented battery and inverter models
System-fit guidance
The configured battery-bank continuous rating meets or exceeds the combined inverter battery-powered rating; final conductor, protection and surge design still requires engineering review. Grid-tied, hybrid or off-grid operation when configured and permitted correctly
What’s included
- 2 × EG4 All-Weather WallMount Batteries
- 1 × EG4 FlexBOSS21 Hybrid Inverter
Typically still required
- Solar panels and array racking
- Permitting, utility interconnection and installation labor
- Site-specific conductors, conduit, disconnects, overcurrent protection and grounding unless itemized in a written order confirmation
Frequently asked questions
What exactly comes in this kit?
Are solar panels included?
How long will 32kWh run my loads?
Can this system sell power back to the grid?
Is the complete kit UL 9540 certified?
What warranty applies?
Know what arrives—and what the installation still needs.
Send Torven Power your loads, existing equipment and project goals for pre-purchase fit guidance.
Specifications, images and package contents can change by hardware revision. The delivered model label, current manual, written warranty and permitted design control.
Product Data
Technical Specifications
System Summary
| Product SKU | K0281 |
|---|---|
| System type | Grid-tied / hybrid battery and inverter kit |
| Nominal battery voltage class | 51.2V / 48V-class |
| Total nominal storage | 32kWh |
| Battery configuration | 2 × EG4 All-Weather WallMount Batteries |
| Inverter configuration | 1 × EG4 FlexBOSS21 Hybrid Inverter |
| Configured battery-bank continuous rating | 20.4kW |
| Combined inverter battery-powered rating | 12kW |
| Power-sizing note | The configured battery-bank continuous rating meets or exceeds the combined inverter battery-powered rating; final conductor, protection and surge design still requires engineering review. |
| AC topology | 120/240V split phase |
| Operating mode | Grid-tied, hybrid or off-grid operation when configured and permitted correctly |
| Solar panels included | No |
| Certification scope | Do not claim system-level UL 9540 without a current certificate matching the exact battery model, inverter model, quantities, firmware and installation. |
Battery System Specifications
| Battery model | EG4 WallMount 314Ah All-Weather (WM48314AWXX) |
|---|---|
| Battery quantity | 2 × all-weather wall-mount batteries |
| Capacity per battery | 16.0kWh (51.2V, 314Ah) |
| Usable energy per battery at 80% depth of discharge | 12.86kWh |
| Total nominal capacity | 32kWh |
| Total usable energy at 80% depth of discharge | 25.72kWh |
| Recommended charge / discharge current | 157A per battery |
| Maximum discharge current | 200A per battery |
| Continuous / peak output per battery | 10.2kW continuous / 12.8kW for 3 seconds |
| Environmental rating | IP67 all-weather enclosure with self-heating |
| Battery management | Active balancing with CAN and RS485 communications |
| Dimensions per battery | 34.6 × 21.7 × 9.3 in |
| Weight per battery | 309 lb |
| Testing / listing | UL 1973 listed; UL 9540A tested. This is not a blanket UL 9540 system claim. |
| Battery warranty | 10 years / 10,000 cycles under current written terms |
Inverter Specifications
| Inverter model | EG4 FlexBOSS21 hybrid inverter |
|---|---|
| Battery-powered AC output | 12kW |
| PV-assisted AC output | Up to 16kW |
| AC topology | 120/240V split phase |
| Recommended PV array | 21kW |
| MPPT channels / input current | 3 MPPTs; 26A / 26A / 15A |
| Maximum PV input voltage | 600V |
| AC pass-through | 90A |
| Maximum battery current | 250A |
| Enclosure | NEMA 4X |
| Weight | 121 lb |
| Inverter warranty | 10-year limited warranty; current written terms control |
Included Components
| Verified item 1 | 2 × EG4 All-Weather WallMount Batteries |
|---|---|
| Verified item 2 | 1 × EG4 FlexBOSS21 Hybrid Inverter |
| Not included 1 | Solar panels and array racking |
| Not included 2 | Permitting, utility interconnection and installation labor |
| Not included 3 | Site-specific conductors, conduit, disconnects, overcurrent protection and grounding unless itemized in a written order confirmation |
| Confirmation needed 1 | No additional battery cables, breakers, disconnects, communications accessories or mounting hardware are itemized in the current supplier BOM. |
Verify the delivered model and hardware revision against the current manual and installation requirements.
Why Buy From Us
Shop with confidence at Torven Power.
Clear policies and real support before and after your purchase.
Ordering Information
Shipping & Returns
Shipping: EG4 batteries, inverters, panels and kits may ship by parcel or LTL freight. Stock, lead time, residential delivery, liftgate service and remote-area charges can vary. Checkout terms or Torven Power’s written order confirmation control.
Returns: Eligibility depends on timing, product condition, installed or energized status, freight costs, supplier authorization and product-specific exclusions. Review the current policies before ordering.
Review the Shipping Policy and Return & Refund Policy before purchase.
EG4
EG4 WallMount 314Ah All-Weather 32kWh Grid-Tied Battery & Inverter Kit — 2 All-Weather WallMount Batteries + 1 FlexBOSS21 Hybrid Inverter
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