OffGridEmpire
Renogyvia AmazonStale — 44d ago

800W 12V Cabin Kit

Real build cost

$1,970$900+$1,070 hidden

Ships missing Battery and Inverter — see receipt below.

Underpowered forRV / van life or weekend cabin
View on Amazon

Affiliate — your price is the same

Compare with similar kits
Updated 2026-05-07Prices refreshed every 6hMethodology →

Solar

800W

Storage

None

Inverter

None

Cost / W

$2.46

Cost / Wh

N/A

System voltage

12V

Battery chemistry

N/A

What's included

0% complete
PanelsControllerBatteryInverterWiringMountingMonitor
Completion Gap Receipt
Advertised price$900
Required missing parts
+ Battery~$500
+ Inverter~$570
Hidden cost to finish+$1,070
Real build cost$1,970
+$1,070 hidden cost · 2.2x the advertised price

Real build cost = advertised kit + required missing parts only. Optional accessories and tools are not included in this total.

offgridempire.comPrice checked Mar 23, 2026
Methodology

Evidence

Cohort-normalized
Cost verdict
+$1,070119% gap — sticker is misleading
$900 advertised→$1,970 real
Completeness0%

Missing required parts:

BatteryInverter
Use-case fit
Underpowered for:RV / vanCabinShedEmergencyHomesteadBoat
vs 24 cohort peersLower = cheaper

30th percentile for $2.46/W

Deal status135 datapoints
At or near tracked low
Install complexityLow
12V at high current
Alternatives in cohortSame system type, similar specs

Cheaper in cohort

Eco-Worthy 400W 12V Premium Panel Kit — 40A MPPT

$751 real build cost

More complete

WindyNation 400W Complete Kit — 1500W VertaMax Inverter

71% complete vs 0%

Better $/W

Eco-Worthy 400W 12V Premium Panel Kit — 40A MPPT

$1.88/W

Component breakdown

5 included · 2 missing
Battery

Renogy 12V 200Ah LiFePO4 Deep Cycle Battery with Bluetooth

recommended
~$500View on Amazon

1×

12V 200Ah LiFePO4, 2560Wh, Bluetooth BMS, self-heating available

Inverter

Renogy 2000W 12V Pure Sine Wave Inverter Charger 6000W Surge LCD ATS

recommended
~$570View on Amazon

1×

2000W pure sine wave, 6000W surge, 12V, built-in charger, remote

Total to complete~$1,070

Price history

Price History

▼ 37% BELOW AVG
All-time low: $900Average: $1,430Current: $900High: $1,900

Where to buy

Where to Buy2 in stock
AmazonBest
In stock
$900
View deal
Renogy
In stock
$1,300
View deal

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Read further

From our research

category

Solar Panel Kits and Bundles

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how-to

How to Install a DIY Off-Grid Solar System (With Real Costs)

Step-by-step DIY install guide

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See how this kit ranks in the 1000W Solar Kit guide

Cabins, sheds, small builds

Price Drop Alert

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