Eco-Worthyvia AmazonUpdated < 1hr ago
400W 12V Complete Kit Ultra — 40A MPPT + 280Ah LiFePO4 + 2000W Inverter
Real build cost
$1,218
1 component role not included.
Best forRV / van life, shed / workshop, and boat / marine
Underpowered forhomestead
Solar
400W
Storage
3.6kWh
Inverter
2000W
Cost / W
$3.04
Cost / Wh
$0.34
System voltage
12V
Battery chemistry
LiFePO4
What's included
86% completePanelsControllerBatteryInverterWiringMountingMonitor
Missing Components — Not Priced
This kit is missing 1 component that is not included in the advertised price:
Monitoring
Evidence
Cohort-normalizedCost verdict
—Advertised price ≈ real build cost
$1,218 advertised→$1,218 real
Completeness86%
Missing required parts:
Monitoring
Use-case fit
Best for:RV / vanCabinShedEmergencyBoat
Underpowered for:Homestead
vs 13 cohort peersLower = cheaper
62th percentile for $3.04/W
0th percentile for $0.34/Wh
Deal status137 datapoints
Below tracked averageAlternatives in cohortSame system type, similar specs
Component breakdown
6 included · 1 missingStatus
Role
Component
Specs
Qty
Est. Cost
Monitoring
Not included
1×
—
Monitoring
Not included
—
1×
Price history
Price History
▼ 10% BELOW AVGAll-time low: $1,170Average: $1,359Current: $1,218High: $1,600
Last observed at retailer: Sep 21, 2026. Days between observations carry the most recent known price — not new data.
Read further
From our researchSee how this kit ranks in the Best RV Solar Kit guide
RV + van life
Price Drop Alert
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