EG4 FlexBOSS18 | 13kW Hybrid Inverter | 18kW PV | 48V Split Phase

Name: EG4 FlexBOSS18 | 13kW Hybrid Inverter | 18kW PV | 48V Split Phase
Brand: EG4
SKU: EG4FLEXBOSS18
Price: 3199.99 USD
Availability: InStock

BY: EG4

SKU: EG4FLEXBOSS18

| Availability: In stock

$3,499.00

$3,199.99

You Save: $299.01

Product Highlights

Designed for off-grid power
13,000 W output to run high-demand appliances and equipment
Supports up to 18,000 W solar input for faster daytime recharging
Remote monitoring makes power and settings easy to track

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EG4 FlexBOSS18 13kW AC Hybrid Inverter | 48V Split Phase | 18kW PV Input

The EG4 FlexBOSS18 is a powerful hybrid inverter designed to optimize solar energy conversion for both off-grid and grid-tied applications. With an impressive 13kW AC output and 18kW PV input, this inverter can handle high-demand loads with ease. Its 120V/240V split-phase capability makes it ideal for residential and commercial use, providing uninterrupted power with seamless battery integration.

Revolutionary Power Performance

16kW continuous output with solar input - 23% more power than previous models
22kW maximum PV input across enhanced triple MPPTs for maximum solar harvest
14kW battery-only power output providing robust backup for essential loads

Intelligent Energy Ecosystem

Dynamic operating modes: grid-tied, off-grid, and smart hybrid configurations
Advanced AI-powered load management with predictive efficiency algorithms
Seamless integration with the new EG4 GridBOSS PRO for complete energy ecosystem control

Industry-Leading Safety & Compliance

UL1741 SB certified for grid operation including advanced grid support functions
Integrated Smart RSD+ exceeds NEC 690.12 requirements with module-level monitoring
Comprehensive protection suite with self-diagnostic capabilities and remote troubleshooting

Superior Efficiency & Economics

800VDC PV input capacity reduces balance of system costs and line losses
Triple MPPT technology with shade mitigation maximizes production in all conditions
Battery-to-grid efficiency of 96.5 percent and solar-to-grid efficiency of 98.2 percent

Simplified Installation & Enhanced Monitoring

Toolless mounting system with quick-connect terminals reduces installation time by 40%
Integrated 5G/Wi-Fi/Ethernet connectivity with local backup of monitoring data
120A grid bypass with zero-transfer time for critical loads

What's Included

Everything you need is included with your product.

EG4 FlexBOSS18 13kW AC Hybrid Inverter | 48V Split Phase | 18kW PV Input

User Manual

EG4 FlexBOSS18 13kW AC Hybrid Inverter Specifications

AC OUTPUT/INPUT

Specification	Details
NOMINAL GRID VOLTAGE (INPUT & OUTPUT)	240 VAC \| 208 VAC
FREQUENCY	60Hz Default (50Hz Capable)
MAX. CONTINUOUS DISCHARGE RATE	10kW
MAX. APPARENT POWER	13kW (54A @240V) \| 11.2kW (54A @208V
MAX. CONTINUOUS CURRENT @ 45°C	54A
MAX. CONTINUOUS DISCHARGE W/ PV & GRID ONLY @ 45°C	10kW \| 13kW
POWER FACTOR (OUTPUT)	0.6 – 1.0
MAX. OUTPUT FAULT CURRENT	156A peak @ 100us
MAX. PASSTHROUGH FROM GRID	90A
THD V (VOLTAGE)	<3% @ full load
THD I (CURRENT)	<5% @ full load
BACKUP SWITCHING TIME (TRANSFER TIME)	20ms (Default), 10ms (Configurable), 20ms (Parallel)
OPEN LOOP RESPONSE TIME (OLRT)	Pending
TIME TO STEADY STATE	Pending
MAX. CONTINUOUS PER-LINE WATTAGE	6.5kW

EFFICIENCY

Specification	Details
BATTERY TO GRID/LOAD	94%
PV TO GRID/LOAD	97.5%
PV TO BATTERY	94.5%
CEC EFFICIENCY (CALIFORNIA ENERGY COMMISSION)	Pending

SOLAR TECHNICAL SPECS

Specification	Details
MAX. SOLAR STC INPUT POWER	18kW
MAX. PV INPUT VOLTAGE	600 VDC
MPPT VOLTAGE RANGE	120V – 440 VDC
MPPT FULL POWER VOLTAGE RANGE	250V – 440 VDC
# OF MPPTS \| # OF STRINGS PER MPPT	2/2
MAX. CURRENT PER MPPT	26A/26A
MAX. SHORT-CIRCUIT CURRENT RATING PER MPPT	31A/31A
NOMINAL MPPT VOLTAGE	360 VDC
UNIT STARTUP VOLTAGE	200 VDC

BATTERY TECHNICAL SPECS

Specification	Details
COMPATIBLE BATTERY TECHNOLOGIES	Lithium/Lead-acid
OPERATING VOLTAGE	40 – 60 VDC
NOMINAL VOLTAGE	48 VDC
MAX. CHARGE/DISCHARGE CURRENT	208A (10kW)
BATTERY COMMUNICATION PROTOCOL	CAN/RS485

ENVIRONMENTAL

Specification	Details
OPERATING TEMPERATURE RANGE	-13°F – 140°F (-25°C – 60°C); > 45°C Derating
OPERATING HUMIDITY	0 – 100%
MAX. ALTITUDE OF OPERATION	<2000m (<6561ft)
ENCLOSURE RATING	NEMA 4X
STORAGE TEMPERATURE RATING	-13°F – 140°F (-25°C – 60°C)
COOLING (OR COOLING CONCEPT)	Fans

GENERAL SPECIFICATIONS

Specification	Details
DIMENSIONS	29.52 x 20.47 x 10.43 in. (750 x 520 x 265 mm)
TOTAL WEIGHT	115 lbs. (52 kg)
MOUNTING OPTION(S)	Wall
USER INTERFACE	APP/WEB/LCD (optional)
SCALABILITY	10
*INVERTER IDLE CONSUMPTION @ NO LOAD @ (TEMP)**	<60W (Standby)
NOISE	<50dB @ 3 ft
LOCKED ROTOR AMPS (LRA)	195A

Frequently-Asked Questions

Can the EG4 FlexBOSS18 be used for both off-grid and grid-tied applications?

Yes! This hybrid inverter can operate as a standalone off-grid system or integrate with the grid for enhanced energy efficiency.

What battery types are compatible with the EG4 FlexBOSS18?

It is designed to work with 48V LiFePO4 batteries, ensuring optimal performance and longevity.

How many inverters can I connect in parallel?

You can parallel multiple units to increase power output for larger energy demands.

Does it support remote monitoring?

Yes, the Wi-Fi and RS485 connectivity allow real-time monitoring and control via the EG4 app.

Manual

EG4 FlexBOSS18 Manual

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Anything that ships on a pallet goes freight with liftgate and pallet jack included, so the driver gets it off the truck and onto the ground at your address. The carrier will call you directly to schedule a delivery window.

Returns are 30 days from delivery. For freight deliveries, inspect the shipment before you sign for it. If something is damaged in transit, note it on the delivery receipt and we handle the freight claim, not you. Read more about our Returns Policy here.

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