SELECTvia Shop Solar KitsUpdated < 1hr ago
PLUS 7.92kW — EG4 FlexBoss18, 20.48kWh LiFePO4
Real build cost
$13,489
1 component role not included.
Best forRV / van life, weekend cabin, and shed / workshop
Solar
7920W
Storage
20.5kWh
Inverter
None
Cost / W
$1.70
Cost / Wh
$0.66
System voltage
48V
Battery chemistry
LiFePO4
What's included
71% completePanelsControllerBatteryInverterWiringMountingMonitor
Missing Components — Not Priced
This kit is missing 1 component that is not included in the advertised price:
Inverter
↓ Panel-bundled configurations available below
Other Configurations
PLUS 7.92kW — EG4 FlexBoss18, 20.48kWh LiFePO4
$13,199$-290
Panels7920W71%
PLUS 7.92kW — EG4 FlexBoss18, 20.48kWh LiFePO4Viewing
$13,489
Panels7920W71%
PLUS 7.92kW — EG4 FlexBoss18, 28.6kWh LiFePO4
$14,689+$1,200
Panels7920W71%
PLUS 7.92kW — EG4 FlexBoss18, 20.48kWh LiFePO4, + IronRidge
$15,589+$2,100
Panels7920W71%
PLUS 7.92kW — EG4 FlexBoss18, 20.48kWh LiFePO4, + SkyRack HD
$18,789+$5,300
Panels7920W71%
Evidence
Cohort-normalizedCost verdict
—Advertised price ≈ real build cost
$13,489 advertised→$13,489 real
Completeness71%
Missing required parts:
Inverter
Use-case fit
Best for:RV / vanCabinShedEmergencyBoat
vs 20 cohort peersLower = cheaper
50th percentile for $1.70/W
45th percentile for $0.66/Wh
Deal status20 datapoints
At or near tracked lowInstall complexityModerate
48V wiring + breakersLicensed electrician
Alternatives in cohortSame system type, similar specs
Component breakdown
5 included · 1 missingStatus
Role
Component
Specs
Qty
Est. Cost
Inverter
Not included
1×
—
Inverter
Not included
—
1×
Price history
Price History
▼ 6% BELOW AVGAll-time low: $13,489Average: $14,339Current: $13,489High: $14,489
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 PLUS 7.92kW — EG4 FlexBoss18, 20.48kWh LiFePO4.