EG4 Hybrid Power Kit | 16kW 120/240V Output 48VDC - 28.6kWh System Bundle | EG4 FlexBOSS21 Hybrid Inverter + 2 x EG4 PowerPro Wallmount Outdoor Battery

This EG4 bundle includes (1) 16kW FlexBOSS21 Hybrid Inverter and (2) 14.3kWh PowerPro Wallmount Outdoor Batteries. Built for durability and exceptional performance, this powerful system provides continuous power for medium to large homes or commercial properties. Featuring advanced technology and substantial energy storage, it ensures reliable backup during outages, offering an efficient and seamless energy solution you can count on.

The EG4 FlexBOSS21 is a split phase, all-in-one, hybrid inverter designed for the residential and small commercial markets. With a 21kW usable PV (DC) input, the FlexBOSS21 provides high power output, generating 12kW of AC power during non-sunlight conditions and a full 16kW AC with solar PV gain. It is a powerful and versatile inverter which can feed-through 90 Amps of utility power from the grid at 120/240 VAC.

The FlexBOSS21 is an enhanced cousin to EG4’s flagship 18kPV inverter that has been designed to optimally work with EG4’s GridBOSS MID (power gateway). The combination of FlexBOSS21 and GridBOSS significantly reduces installation expenses by replacing unnecessary components and reducing installation time. This makes the FlexBOSS21-GridBOSS combination an unbeatable choice for customers looking to build powerful, cost-effective and scalable solar systems.

The EG4 PowerPro EG4’s versatile Energy Storage Systems (ESS) store energy from renewable sources for times of low availability, power loads during grid outages, and shift grid usage to off-peak hours (or peak shave). Additionally, they contribute to grid stability by smoothing out demand, reducing peak loads that strain the grid. Key components of an ESS include batteries, a Hybrid inverter, a solar charge controller, and solar panels, alongside Balance of System components like wires and fuses.

Product Specifications

EG4 FLEXBOSS21 16kW 48V Hybrid Split Phase Inverter/Charger Product Specifications

Specification	Details
PV Input	21kW max usable, 24kW max input
On-Grid AC Output	Continuous: 16kW @ 240V, 13.8kW @ 208V
	Delivers 16kW to grid or load with PV/battery; 12kW to loads/battery without PV
AC Output	Nominal Current: 50A
	Nominal Output Voltage: 120/240V, 120/208V, 240V
	Continuous Output Power: 12000VA
	Starts a 5-ton AC unit easily
Dimensions	30.4 × 22.3 × 11.2 in.
Weight	88 lbs.
Warranty	10 years

EG4 PowerPro WallMount AllWeather Lithium Battery Product Specifications

Voltage: 51.2V
Capacity: 280Ah
Dimensions: 34.6 × 22.3 × 9.1 in. (88 × 56.6 × 23.2cm)
Weight: 308.6 lbs. (140 kg)
Design Life: 8000 Deep Cycles
Certs: UL 1973
Lifetime Production: 82.6MWh

Product Manual

EG4 FLEXBOSS21

EG4 Product Manual
EG4 Specs Sheet

EG4 PowerPro WallMount Battery Product Manuals

EG4 WALLMOUNT ALL WEATHER BATTERY – QUICK-START GUIDE V1.1

EG4 WALLMOUNT ALL WEATHER BATTERY – MANUAL V1.3.1

EG4 WALLMOUNT ALL WEATHER BATTERY – SPEC-SHEET V1.1.2

EG4 WALLMOUNT ALL WEATHER BATTERY – BROCHURE

Product Warranty

EG4 Product Warranty

EG4 Electronics offers a 10-year Full Parts Replacement or Full Product Replacement Warranty from the date of original inverter (EG4 18kPV-12LV) purchase.

Your warranty must be registered within the first year of purchase or provide proof of purchase from an EG4 authorized distributor to remain valid. If you choose not to register or cannot provide proof of purchase, your warranty may be invalidated.

This limited warranty is to the original purchaser of the product and is one time transferable only if the product remains installed in the original installation location. All parts exchanges are covered during the warranty period. Outside of the continental US, replacement shipping charges may apply.

Product that is not purchased through an EG4 approved vendor is not covered under this warranty. A list of approved vendors can be found on our website. Reselling or removing the product from the original installation site will void the warranty.

Warranty Exclusions – EG4 Electronics has no obligation under this limited warranty for products subjected to the following conditions (including but not limited to):

Damages incurred during installation/reinstallation or removal
Poor workmanship performed by an individual, installer, or a firm
Damages caused by mishandling the product or inappropriate environmental exposure
Damages caused by improper maintenance or operating outside the specified operating conditions
Tampering, altering, and/or disassembly of the product
Using product in applications other than what the manufacturer intended
Lightning, fire, flood, earthquake, terrorism, riots, or acts of God
Any product with a serial number that has been altered, defaced, or removed
Any unauthorized firmware updates/upgrades/patches
Damages incurred from a voltage or current spikes due to open-loop lithium battery communications

EG4 product warranty is a limited warranty – EG4 limits its liability in the event of a product defect to repair or replacement in accordance with the terms of this limited warranty. EG4 is not responsible for any additional or indirect damages that may arise from the malfunctioning of the product. These damages could be incidental or consequential, including without limitation, any liability for the loss of revenue, profits, or time. EG4 shall not be liable for any direct or indirect loss of life, including but not limited to bodily injury, illness, or death arising from the misuse or mishandling of the product, whether caused by negligence or otherwise.

Product FAQs

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EG4 Hybrid Power Kit | 16kW 120/240V Output 48VDC - 28.6kWh System Bundle | EG4 FlexBOSS21 Hybrid Inverter + 2 x EG4 PowerPro Wallmount Outdoor Battery

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