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Silent Power for RV, Cabin, and Backcountry

Run Your Fridge, CPAP, and Lights All Weekend, Without a Drop of Gas

The Oscal PowerMax 1800SE Portable Power Station delivers 1800W of clean pure sine wave power from a 1024Wh LFP battery, recharging from the sun at up to 800W so you stay off-grid as long as you want.

$399.00
Oscal PowerMax 1800SE portable power station standalone

Oscal PowerMax 1800SE Portable Power Station - 1024Wh LFP, 1800W Pure Sine Wave

by Oscal
$399.00
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1024WhLFP Capacity
1800WPure Sine Wave Output
800WMax Solar Input
3,500+Cycles to 80% Capacity
The short version
The Oscal PowerMax 1800SE Portable Power Station is a 1024Wh LFP-based power station built for RV owners, cabin stays, and overlanding trips where grid access isn't an option. Its 1800W pure sine wave inverter handles sensitive loads like CPAP machines and mini-fridges without the distorted waveforms that can damage electronics. Up to 800W of solar input means you can recharge from roof or portable panels on the road, and the LFP chemistry supports more than 3,500 cycles to 80% capacity so the unit stays reliable trip after trip. Three AC outlets, dual 100W USB-C ports, and a vehicle charging output give you enough ports to run and recharge everything at camp simultaneously.

Everything it does, at a glance

1800W Pure Sine Wave, Appliance-Safe Power

1800W Pure Sine Wave, Appliance-Safe Power

Clean sine wave output protects sensitive loads like CPAP machines, induction cooktops, and modern laptop chargers. No harmonic distortion, no overheating compressors.

1024Wh LFP Battery Built for Real Trips

1024Wh LFP Battery Built for Real Trips

A full kilowatt-hour of lithium iron phosphate capacity keeps a mini-fridge running through the night and your devices topped off all day. LFP chemistry also holds up better to heat and deep discharge than conventional lithium cells.

Recharge at 800W from Solar Alone

Recharge at 800W from Solar Alone

With up to 800W of solar input accepted at 10-60V and up to 20A, you can pair this unit with multiple panels and recover a full charge in just over an hour of strong sunlight. No hookup required.

13 Output Ports for a Full Camp Setup

13 Output Ports for a Full Camp Setup

Three AC outlets, two 100W USB-C fast-charge ports, two USB-A ports, two DC5521 outputs, and a 12V vehicle output let you run the fridge, charge phones, and power a fan at the same time without a power strip.

3,500+ Cycle LFP Longevity

3,500+ Cycle LFP Longevity

The LFP cell chemistry is rated to retain more than 80% of its capacity after 3,500 charge cycles. That's serious long-term value for anyone who uses this unit regularly across camping seasons.

App Control via Wi-Fi and Bluetooth

App Control via Wi-Fi and Bluetooth

Built-in Wi-Fi (2.4GHz) and Bluetooth let you check battery status, monitor input and output, and adjust settings from your phone. Useful when the unit is stowed in a compartment and you don't want to crawl in to read the display.

Real loads, honest answers

What can it run?

LoadSupportedNotes
Mini-Fridge / CoolerYesCompressor-style fridges up to ~200W start surge handled cleanly by pure sine wave output
CPAP / BiPAP MachineYesPure sine wave output required by most CPAP devices; runs overnight comfortably
Laptop and Tablet ChargingYesTwo USB-C ports at 100W each; AC outlets for larger power bricks
Smartphone ChargingYesUSB-A (18W fast charge) and USB-C (100W) ports available
LED LightingYesLow draw; can run for extended periods alongside other loads
Box Fan / Tower FanYesMost fans draw 50-100W; well within the 1800W AC capacity
Electric BlanketYesTypically 50-150W; suitable for overnight use
Induction Cooktop (single burner)YesLow-to-medium settings typically draw 600-1000W; stay within 1800W total load
Coffee Maker / DripYesMost draw 800-1200W; use as primary load and plan capacity accordingly
Central Air ConditionerNoWhole-home or large RV AC units exceed the 1800W output rating
Electric Water HeaterNoTypical draw of 4000W or more exceeds this unit's output
Is it right for you

Best for

  • RV travelers who need silent, fume-free power inside the rig
  • Weekend cabin stays without shore power
  • Overlanders running a 12V fridge and devices for multiple days
  • CPAP users who camp or travel off-grid
  • Anyone building a solar-rechargeable camp power setup
  • Emergency home backup for a fridge, lights, and communication during short outages

Not the best fit if

  • Whole-home backup, capacity and output are sized for targeted, not whole-house, loads
  • Running central air conditioning or large appliances like electric dryers
  • Users who need expandable battery capacity beyond the built-in 1024Wh
  • Very long outages requiring multiple days of heavy continuous draw without solar recharge access
Versus the alternative

How it compares

Oscal PowerMax 1800SE Portable Power StationA gas-powered portable generator
Noise LevelSilent operationLoud engine noise; restricted or banned in many campgrounds and RV parks
Fumes / ExhaustZero emissions; safe indoors and in enclosed spacesCarbon monoxide risk; must be used outdoors only
Fuel SourceGrid AC, solar panels, or vehicle DC, no fuel to store or haulGasoline required; fuel storage, spills, and sourcing on the road
Output QualityPure sine wave; safe for CPAP, laptops, and sensitive electronicsModified or noisy waveform on many models; can damage sensitive devices
Solar RechargingUp to 800W solar input; recharge from panels while parkedNot applicable; requires fuel regardless of sun availability
MaintenanceNo oil changes, spark plugs, or carburetor servicingRegular engine maintenance required; risk of non-start after storage
PortabilityApproximately 14.35kg; carry-handle design for one-person transportComparable or heavier weight, plus fuel weight
Set it up right

Safety and installation

LFP Chemistry: Inherently Stable Lithium iron phosphate cells are chemically more stable than NMC or NCA lithium. They're less prone to thermal runaway, making them a safer choice for use inside an RV or cabin.
High and Low Temperature Protection Built-in thermal monitoring halts charging or discharging if temperatures go outside safe operating limits, protecting the battery on hot summer days and cold mountain nights.
10-Layer Electrical Protection Overcharge, overdischarge, overload, short-circuit, overcurrent, overvoltage, undervoltage, and excessive voltage difference protection work together to guard both the unit and your connected devices.
Pure Sine Wave Output The 1800W inverter produces a clean sine wave identical in quality to grid power, so medical devices like CPAP machines and sensitive electronics run safely without waveform distortion.
Remote Monitoring via App Wi-Fi and Bluetooth connectivity let you watch real-time input, output, and battery state from your phone, so you can catch any abnormal readings without being physically next to the unit.
The numbers

Specifications

Capacity1024Wh
Cell ChemistryLFP (LiFePO4)
Cycle LifeMore than 80% capacity remaining after 3,500 cycles
AC Output1800W total, pure sine wave, 120V, 50/60Hz, 3 outlets (US)
USB-C Output5/9/12/15V 3A, 20V 5A, max 100W each, 200W total (x2)
USB-A Output5V 3A, max 15W
USB-A Fast Charge Output5V 3A / 9V 2A / 12V 1.5A, max 18W
Vehicle Output12V 10A, max 120W
DC5521 Output12V 6A, total 72W (x2)
AC Input100-120V 15A (US), 50/60Hz, max 800W
Solar Input10-60V, max 20A, max 800W
Vehicle Charging Input12V/24V 8A, max 192W
AC + Solar Combined Max800W
Wireless ConnectivityWi-Fi 2.4GHz (2400-2483.5MHz), Bluetooth 2.4GHz (2400-2483.5MHz)
Net WeightApproximately 14.35kg (approx. 31.6 lbs)
Dimensions (L x W x H)420 x 238 x 256mm (approx. 16.5 x 9.4 x 10.1 in)
Battery ExpandabilityNot available
Verify cables, adapters, and additional accessories against the packing slip included in your shipment.In the box

What's included

  • Oscal PowerMax 1800SE Portable Power Station
Before you buy

Frequently asked questions

Can the Oscal PowerMax 1800SE run a CPAP machine overnight?

Yes. The 1800SE produces pure sine wave output, which is what most CPAP and BiPAP manufacturers require for safe operation. At a typical CPAP draw of around 30W without a heated humidifier, the 1024Wh battery can theoretically support 8 or more hours of use. Actual runtime depends on your specific machine's settings and whether you're running the humidifier.

How fast can the Oscal PowerMax 1800SE charge from solar panels?

The 1800SE accepts up to 800W of solar input at 10-60V and up to 20A. With 800W of panels in direct sunlight, you could recover a full 1024Wh charge in roughly 1.5 to 2 hours accounting for real-world efficiency losses. The unit's solar input range makes it compatible with a wide variety of panel configurations.

Is the Oscal PowerMax 1800SE safe to use inside an RV or cabin?

Yes. Unlike gas generators, the 1800SE produces zero exhaust and no carbon monoxide, so it's completely safe to use in enclosed spaces. The LFP battery chemistry is also more thermally stable than other lithium types, and the unit includes high and low temperature protection to shut down safely if conditions go outside normal range.

Can the Oscal PowerMax 1800SE run a mini-fridge at a campsite?

Yes. A typical 12V or 120V compressor-style mini-fridge draws around 40-60W on average, well within the 1800W output and the 1024Wh capacity. You can expect roughly 15-20 hours of fridge runtime on a full charge, and if you're recharging from solar during the day, you can extend that indefinitely in good sun conditions.

What outputs does the Oscal PowerMax 1800SE have for charging devices?

The 1800SE offers three 120V AC outlets at 1800W total, two USB-C ports at up to 100W each (200W combined), one standard USB-A port at 15W, one USB-A fast-charge port at 18W, two DC5521 ports at 12V 6A each, and a 12V vehicle output at up to 120W. That's enough to simultaneously run a fridge on AC, charge phones on USB-C, and power a 12V accessory.

Does the Oscal PowerMax 1800SE support battery expansion?

No. The 1800SE is a self-contained unit and does not support external battery expansion packs. The onboard 1024Wh LFP capacity is what you get. If your power needs are significantly higher, you may want to consider a unit in a platform that supports add-on batteries.

What owners say

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No-risk purchase

Authorized dealer, full manufacturer warranty Every unit ships genuine from an authorized dealer, backed by the manufacturer's full warranty and factory support. No gray-market gamble.30-day returns, no restocking fees Unused and in the original packaging, returned within 30 days. We never charge a restocking fee, and approved refunds post to your original payment within 7 days.Free shipping Ships free to the contiguous United States with tracking. Freight items delivering to a home with no dock or forklift can add liftgate delivery at a flat fee shown at checkout.Arrives damaged? We cover it. If your unit shows up damaged or defective, we pay return shipping and expedite a free replacement. Send photos and we move fast.90-day price guarantee Find it lower at an authorized retailer within 90 days of your purchase and we refund the difference.Financing available Split the cost into monthly payments at checkout.Real pre- and post-sale support Questions about sizing, compatibility, or setup? Reach our team directly at info@mightygenerators.com before you buy or after your unit arrives.
Everything for whole-home readiness

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Oscal PowerMax 1800SE Portable Power Station - 1024Wh LFP, 1800W Pure Sine Wave
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