SELECTvia Shop Solar KitsUpdated < 1hr ago
MAX 10.6kW — EG4 FlexBoss21, 20.48kWh LiFePO4
Real build cost
$14,889
Complete kit — advertised price is the real price.
Best forRV / van life, weekend cabin, and shed / workshop
Solar
10560W
Storage
20.5kWh
Inverter
16000W
Cost / W
$1.41
Cost / Wh
$0.73
System voltage
48V
Battery chemistry
LiFePO4
What's included
86% completePanelsControllerBatteryInverterWiringMountingMonitor
Complete Kit — Advertised Price Is the Real Price
All required components for a working system are included. No additional purchases needed.
Verified May 7, 2026Methodology
Other Configurations
MAX 10.6kW — EG4 FlexBoss21, 20.48kWh LiFePO4Viewing
$14,889
Panels10560W86%
MAX 10.6kW — EG4 FlexBoss21, 20.48kWh LiFePO4
$15,289+$400
Panels10560W86%
MAX 10.6kW — EG4 FlexBoss21, 28.6kWh LiFePO4
$16,239+$1,350
Panels10560W86%
MAX 10.6kW — EG4 FlexBoss21, 20.48kWh LiFePO4, + IronRidge
$17,689+$2,800
Panels10560W86%
MAX 10.6kW — EG4 FlexBoss21, 20.48kWh LiFePO4, + SkyRack HD
$21,589+$6,700
Panels10560W86%
Evidence
Cohort-normalizedCost verdict
—Advertised price ≈ real build cost
$14,889 advertised→$14,889 real
Completeness86%
Complete as sold — every standard role ships in the box.
Use-case fit
Best for:RV / vanCabinShedEmergencyHomesteadBoat
vs 28 cohort peersLower = cheaper
21th percentile for $1.41/W
54th percentile for $0.73/Wh
Deal status20 datapoints
At or near tracked lowInstall complexityModerate
48V wiring + breakersLicensed electrician
Alternatives in cohortSame system type, similar specs
Component breakdown
6 included · 0 missingStatus
Role
Component
Specs
Qty
Est. Cost
Price history
Price History
— AT AVERAGEAll-time low: $14,889Average: $14,889Current: $14,889High: $14,889
Where to buy
Where to Buy3 in stock
Retailer
Price
Stock
Shop Solar KitsBest
In stock
$14,889
View dealShop Solar Kits
In stock
$17,489
View dealShop Solar Kits
In stock
$21,189
View dealAffiliate links — checking price won't cost you anything
Read further
From our researchguide
Home Generators and Backup Power: 4 Categories, Real Costs, No Rankings
Whole-home backup categories
Read article →guide
RV and Camper Solar: What the Kits Don't Tell You
RV-specific kit guidance
Read article →guide
Lithium and LiFePO4 Batteries: The Complete Guide for Off-Grid Solar
What LFP / Li-ion really gives you
Read article →Price Drop Alert
Does this kit cover your loads?
Enter your appliances to size against the MAX 10.6kW — EG4 FlexBoss21, 20.48kWh LiFePO4.