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10.6kW Complete Solar Kit - EG4 FlexBoss21 Inverter - 20-32kWh Lithium Battery [SELECT MAX]
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10.6kW Complete Solar Kit - EG4 FlexBoss21 Inverter - 20-32kWh Lithium Battery [SELECT MAX]

SELECT · Solar Kit

SKU: SELECT-MAX-EG4-LLS-R

SELECT MAX 10.56kW Complete Solar Kit

Trustpilot

SELECT MAX pairs an EG4 FlexBoss21 hybrid inverter with 20.48–32kWh of lithium storage and a 24-panel solar array, built to run heavy whole-home loads while staying grid-tied for bill offset.

Capacity 20.48–32kWh (base bundle: 20.48kWh)
Solar Array 10,560W (24 x 440W panels)
Inverter EG4 FlexBoss21: 16,000W continuous, 24kW surge
Warranty 10-year inverter and battery warranty; 25-year solar panel warranty

Choose this kit if…

  • You want to run heavy whole-home loads like a 5-ton AC unit or well pump.
  • You want to sell excess solar back to the grid to offset your bill.
  • You run a farm, remote worksite or mobile business that needs heavy-duty power.

Choose your options

Battery Bank
Solar Panel Racking

Premium battery with roof-mount racking

What’s in the box

  • 1 x FlexBoss21 EG4 Inverter
  • 24 x 440W Monocrystalline Solar Panels - 25 Year Linear Performance Warranty
  • 4 x EG4-LL-S Battery
  • 1 x 6-slot Battery Rack
  • 1 x PV Roof Mount
  • Custom wiring diagram and commissioning guide
  • All required cables, connectors and fuses
$17,789.00
$17,789.00
$19,029.00
You save $1,240.00
Pay over time at checkout.
Talk it through with our team  ·  877-242-2792
Orders processed in 24–48 hours
Lifetime support by phone, chat & email
30-day returns
Full manufacturer warranty
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Ships from the USA Warehouses in CA, TX and NY

Not sure which kit is right?

Tell us what you want to power and we will size the system with you, free, before and after you buy. The team picks up the phone Mon–Thu 10am–5:30pm and Fri 10am–1pm EST.

Get a free system proposal →info@shopsolarkits.com

Frequently bought together

SELECT MAX 10.56kW · EG4-LL-S - 20.48kWh - Premium - Closed Loop / Roof Rack - Standard - IronRidge $17,789.00

Specifications

The numbers

Solar array
10,560W (24 x 440W panels)
Battery storage
20.48–32kWh (base bundle: 20.48kWh)
Inverter
EG4 FlexBoss21: 16,000W continuous, 24kW surge
Battery chemistry
Lithium
Inverters in parallel
Up to 16
Warranty
10 years inverter and battery warranty; 25 years solar panel warranty

In plain English

What that means for you

How long it lasts

What it can run

Size of solar array

Install effort

Room to grow

Scales are the ShopSolar team's read of the manufacturer's published specs.

Overview

Power that grows with you.

Formerly known as BPK-PLUS, the newly branded SELECT MAX is an exceptional choice for homeowners who want to fully integrate with the utility grid while maintaining high-capacity battery backup. Whether you are looking to run heavy loads like a 5-ton AC unit, fully back up your entire property, or maximize your utility savings through aggressive grid-tie offset, the SELECT MAX is engineered to handle it all without compromise.

Like all ShopSolar systems, the SELECT Power Kits come with all the parts and pieces you need to get up and running. We have engineered this kit for a truly DIY-friendly experience, designed so that a homeowner can comfortably handle the majority of the installation. This streamlined approach remains simple enough for a local professional to step in and finalize the grid connection quickly, saving you time and labor costs.

Typical Uses: What Can It Run?

  • Whole-Home Power: High continuous output can easily power large household loads, including 5-ton air conditioners, well pumps, and electric dryers.

  • Grid-Offset: Maximize your return on investment by selling excess solar back to the grid or using stored energy during peak-rate hours to slash your monthly bill.

  • Mid-Size Off-Grid Systems: Provides a reliable standalone power solution for cabins, homesteads, and remote properties requiring a "no-compromise" energy experience.

  • Commercial & Business: Reliable energy independence for farms, remote work sites, and mobile operations that require consistent, heavy-duty power.

What’s Included in Your Kit:

  • 10,560W Solar Array: 24 x Phono Draco 440W N-type TOPCon Tier-1 Mono Bifacial Solar Panels featuring a 30-year performance warranty.

  • EG4 FlexBoss21 Hybrid Inverter: An all-in-one powerhouse featuring 16kW continuous output, three MPPT controllers, and a massive 21kW total PV input capacity.

  • 20.48 – 32kWh LFP Batteries: High-performance lithium storage with an 8,000+ cycle life and a 10-year warranty.

  • Battery Mounting & Management: Includes professional WallMount hardware and buildable conduit boxes for a clean, secure, and organized "wall of power" installation.

  • Complete Cable Package: All necessary pre-cut cables, including 2 x 50ft & 2 x 10ft PV extensions cables and a 5ft heavy-duty battery cable for a straightforward installation.

  • Safety & Protection: Includes all required DC disconnects and fuse kits to meet safety standards.

Technical Specifications at a Glance

  • Total Solar Wattage: 10,560W

  • Total Battery Capacity: 20.48 – 32kWh

  • System Voltage: 48VDC

  • Inverter Rated Power: 16,000W Continuous Output (24kW Surge)

  • Solar Input Capacity: Up to 21,000W Max PV Input

  • Solar Panel Warranty: 25-Years

Support & Coverage

  • Full manufacturer warranties on all included components.

  • Lifetime technical support from the dedicated ShopSolar team.

  • Access to detailed setup diagrams, wiring schematics, and commissioning guides.

Installation Overview

Most ShopSolar customers install the majority of the system themselves using our provided diagrams and support resources. Final electrical connections can be completed by a local electrician if required. Our technical support team is available throughout the entire process to help ensure a smooth installation from delivery to system startup.

Order Today

All orders are shipped using our innovative packaging and custom pallets, designed for safe, secure delivery to your door. Backed by our free lifetime support, you can order today and secure your energy independence once and for all.

Choose your kit

Build it around your home.

Every option comes with the kit's inverter, panels and wiring. You choose the battery bank, and how the panels are mounted.

  1. Choose your battery bank A bigger bank keeps you running longer when the grid is down. The table below puts every option side by side.
  2. Pick your racking A roof rack or a ground mount, or handle your own racking if you already have a way to mount the panels.
  3. Let us help you set it up Every order comes with our setup guide and lifetime support from the team, before and long after delivery.
EG4 WallMount Indoor · 32kWh EG4 WallMount Indoor · 32kWh EG4 WallMount Indoor · 32kWh EG4-LP4 V2 Server Rack · 20.48kWh EG4-LP4 V2 Server Rack · 20.48kWh EG4-LP4 V2 Server Rack · 20.48kWh EG4-LL-S · 20.48kWh EG4-LL-S · 20.48kWh EG4-LL-S · 20.48kWh
Price $15,689.00$17,349.00 Save $1,660.00 $17,889.00$20,039.00 Save $2,150.00 $21,889.00$24,629.00 Save $2,740.00 $15,189.00$16,009.00 Save $820.00 $17,589.00$18,249.00 Save $660.00 $21,489.00$23,179.00 Save $1,690.00 $15,489.00$16,569.00 Save $1,080.00 $17,789.00$19,029.00 Save $1,240.00 $21,789.00$23,739.00 Save $1,950.00
Battery BankEG4 WallMount Indoor - 32kWh - Budget-Friendly - Closed Loop - Code CompliantEG4 WallMount Indoor - 32kWh - Budget-Friendly - Closed Loop - Code CompliantEG4 WallMount Indoor - 32kWh - Budget-Friendly - Closed Loop - Code CompliantEG4-LP4 V2 Server Rack - 20.48kWh - Budget-Friendly - Closed LoopEG4-LP4 V2 Server Rack - 20.48kWh - Budget-Friendly - Closed LoopEG4-LP4 V2 Server Rack - 20.48kWh - Budget-Friendly - Closed LoopEG4-LL-S - 20.48kWh - Premium - Closed LoopEG4-LL-S - 20.48kWh - Premium - Closed LoopEG4-LL-S - 20.48kWh - Premium - Closed Loop
Solar Panel RackingI’ll Handle My Own RackingRoof Rack - Standard - IronRidgeGround Mount - Seasonal Adjust - SkyRack HDI’ll Handle My Own RackingRoof Rack - Standard - IronRidgeGround Mount - Seasonal Adjust - SkyRack HDI’ll Handle My Own RackingRoof Rack - Standard - IronRidgeGround Mount - Seasonal Adjust - SkyRack HD
Best forLargest capacity option, self-supplied rackingLargest-capacity battery with roof rackingLargest-capacity battery with ground-mount rackingCheapest option, self-supplied rackingBudget battery with roof-mount racking includedBudget battery with adjustable ground-mount rackingPremium battery, self-supplied rackingPremium battery with roof-mount rackingPremium battery with adjustable ground-mount racking
  • 1 x FlexBoss21 EG4 Inverter
  • 24 x 440W Monocrystalline Solar Panels - 25 Year Linear Performance Warranty
  • 2 x EG4 WallMount Indoor Battery
  • Custom wiring diagram and commissioning guide
  • All required cables, connectors and fuses
  • 1 x FlexBoss21 EG4 Inverter
  • 24 x 440W Monocrystalline Solar Panels - 25 Year Linear Performance Warranty
  • 2 x EG4 WallMount Indoor Battery
  • 1 x PV Roof Mount Set
  • Custom wiring diagram and commissioning guide
  • All required cables, connectors and fuses
  • 1 x FlexBoss21 EG4 Inverter
  • 24 x 440W Monocrystalline Solar Panels - 25 Year Linear Performance Warranty
  • 2 x EG4 WallMount Indoor Battery
  • 1 x PV Ground Mount Assembly
  • Custom wiring diagram and commissioning guide
  • All required cables, connectors and fuses
  • 1 x FlexBoss21 EG4 Inverter
  • 24 x 440W Monocrystalline Solar Panels - 25 Year Linear Performance Warranty
  • 4 x EG4-LiFePO4 48V V2 Battery
  • 1 x 6-slot Battery Rack
  • Custom wiring diagram and commissioning guide
  • All required cables, connectors and fuses
  • 1 x FlexBoss21 EG4 Inverter]
  • 24 x 440W Monocrystalline Solar Panels - 25 Year Linear Performance Warranty
  • 4 x EG4-LiFePO4 48V V2 Battery
  • 1 x 6-slot Battery Rack
  • 1 x PV Roof Mount
  • Custom wiring diagram and commissioning guide
  • All required cables, connectors and fuses
  • 1 x FlexBoss21 EG4 Inverter
  • 24 x 440W Monocrystalline Solar Panels - 25 Year Linear Performance Warranty
  • 4 x EG4-LiFePO4 48V V2 Battery
  • 1 x 6-slot Battery Rack
  • 1 x PV Ground Mount
  • Custom wiring diagram and commissioning guide
  • All required cables, connectors and fuses
  • 1 x FlexBoss21 EG4 Inverter
  • 24 x 440W Monocrystalline Solar Panels - 25 Year Linear Performance Warranty
  • 4 x EG4-LL-S Battery
  • 1 x 6-slot Battery Rack
  • Custom wiring diagram and commissioning guide
  • All required cables, connectors and fuses
  • 1 x FlexBoss21 EG4 Inverter
  • 24 x 440W Monocrystalline Solar Panels - 25 Year Linear Performance Warranty
  • 4 x EG4-LL-S Battery
  • 1 x 6-slot Battery Rack
  • 1 x PV Roof Mount
  • Custom wiring diagram and commissioning guide
  • All required cables, connectors and fuses
  • 1 x FlexBoss21 EG4 Inverter
  • 24 x 440W Monocrystalline Solar Panels - 25 Year Linear Performance Warranty
  • 4 x EG4-LL-S Battery
  • 1 x 6-slot Battery Rack
  • 1 x PV Ground Mount
  • Custom wiring diagram and commissioning guide
  • All required cables, connectors and fuses

What it powers

What it keeps running when the grid goes down.

Estimated run times on one fully charged unit, from the manufacturer's published figures. Add panels and it keeps topping itself up.

73days

LED lights · 10W

18days

CPAP machine · 40W

7days

50" TV · 110W

11days

Fridge · 120W

13days

Chest freezer · 100W

17hours

Microwave · 1,000W

Questions & answers

Asked by shoppers, answered by our team.

1 question answered

SELECT MAX 10.56kW Complete Solar Kit can this come with server rack and batteries 30kw worth. I can't really lift the big wall mount batteries and if one goes out it'easier just to slide one out and replace it. Also need spools of red and black 6ga wire.

Asked by KARL · · EG4 WallMount Indoor - 32kWh - Budget-Friendly - Closed Loop - Code Compliant / Ground Mount - Seasonal Adjust - SkyRack HD

can come with 30kw of server rack batteries, we woudl just add more to the system. I will get the team to send you a custom kit.

Answered by ShopSolar team ShopSolar staff

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Lifetime support

Real people, for the life of your system.

You get free, direct access to our support team by phone, email and chat. Whether it's setup guidance next week or troubleshooting years down the road, we're here to help.

877-242-2792Mon–Thu 10am–5:30pm · Fri 10am–1pm EST
Live chatAvailable now
info@shopsolarkits.comFor in-depth guidance

FAQ

Questions, answered.

Can't find what you need? The team is a phone call away.

Call 877-242-2792
Can you help with system sizing and design?

Yes. Our team can help you choose the right solar kit based on your goals, power needs, and location. We provide personalized guidance before and after your purchase at no additional cost.

Many of our customers complete the majority of installation themselves using our diagrams and support resources. For final electrical connections, a licensed electrician may be required depending on local codes.

While we do not directly install systems, we can help connect you with qualified local professionals and provide technical documentation to support your installer.

Our team works hard to process all orders within 24-48 hours. Most products ship directly to your door using the quickest, most cost effective ground shipping services depending on size. You'll receive tracking details and delivery coordination as soon as your order ships. Our average shipping times are anywhere from 3-7 days.

Our return policy is normally 30 days. If you have specific questions about returns, eligibility, or specific product conditions, you can learn more in our help center.

All products are backed by full manufacturer warranties. In addition, our team provides free lifetime technical support to assist you throughout the life of your system.

Yes! We offer a variety of flexible payment plans to fit any budget. Options include monthly financing with competitive interest rates, and some plans require no money down. You can apply during checkout and get approved in minutes.