Oscal PowerMax 1800 SE 1024 Wh Portable Power Station

A pure sine wave power station with a 1024 Wh LiFePO4 battery, 1800 W continuous and 3600 W surge. It offers 0.01 s UPS switchover and 800 W solar input, and weighs 15.5 kg.

~~$399~~

5%$379

Price with code · Geekbuying · as of 2026-10-09

Code 26BTS01 · 6% off

max $20 · orders over $50 · until 2026-10-31

Copy code & shop Geekbuying

~~$399~~5%$379Copy code & shop Geekbuying

1Ten outputs, pure sine wave

There are ten outputs: three AC outlets, two 100 W USB-C, two USB-A, two DC5521 and a car socket. Pure sine wave output treats sensitive electronics like mains power.

2LiFePO4 rated for 3500+ cycles

The UL-certified LiFePO4 battery holds 80% after more than 3500 cycles. A BMS and UL94 V-0 fire-resistant housing guard against overcharge, shorts and temperature extremes, and the warranty runs five years.

3Full in 1.5 h on solar

Up to 800 W of solar fills it in 1.5 hours in ideal sun, or 700 W from AC in 1.7 hours. AC plus solar together is faster still, and the 5 W LED light includes an SOS mode.

Key specs

Capacity: 1024 Wh · LiFePO4
Output: 1800 W (3600 W surge)
Charging input: AC 700 W · solar 800 W
Weight: 15.5 kg
Ships from: US warehouse

Good pick if

You want to keep a computer and router up through outages
You camp with solar panels

Think twice if

You want something light enough for one hand

FAQ

Is there a promo code?

Yes. Enter 26BTS01 at Geekbuying checkout when buying the Oscal PowerMax 1800 SE 1024 Wh Portable Power Station for 6% off. Conditions: max $20 · orders over $50 · until 2026-10-31.

Which voltage does it need?

The page doesn’t state the AC output voltage. It ships from the US warehouse and the photos show US-style outlets, so check your local voltage and socket type first.

What’s in the box?

The power station, an AC charging cable, a solar charging cable, a warranty card and a manual.