Oscal PowerMax 1800SE Portable Power Station | 1800W 1024Wh
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The Owner's Insights on the OSCAL PowerMax 1800SE
The interesting thing here is the output-to-weight ratio. 1,800W continuous out of a 15.5kg unit is more grunt than most stations this size manage, and it's what lets you run a microwave or a power tool rather than just charging phones.
Where you need to be realistic is capacity. 1,024Wh is a weekend of fridge, lights and devices, not a week. It's the output that's big here, not the storage.
It charges fast, and that partly makes up for it: 700W off the wall gets you full in about 1.5 hours, or 800W of solar in about 1.6. Run both at once and it's quicker again.
Why You'll Love the OSCAL PowerMax 1800SE
- 1,800W continuous, 3,600W surge. Your microwave, your tools, not just phone charging.
- 1,024Wh of LiFePO4. A weekend of fridge, lights and devices.
- Full charge in 1.5 hours. 700W off the wall, so it's ready before you leave.
- 800W of solar input. Full in about 1.6 hours of good sun, no mains needed.
- Only 15.5kg. Genuine one-person carry, unusual at this output.
- Ten output ports. Three AC, two 100W USB-C, DC5521 and a 12V socket.
- 0.01s UPS switchover. Your computer doesn't notice the power going out.
- 3,500+ cycles, 5-year warranty. Long-life chemistry backed for five years.

Why You Should Consider an OSCAL Portable Power Station
OSCAL build LiFePO4 power stations with big output for the money, and the PowerMax 1800SE is their light, high-output model. It carries a 5-year warranty. See the rest of the OSCAL range.
OSCAL PowerMax 1800SE Specifications
| Battery capacity | 1,024Wh |
| Battery type | LiFePO4, 3,500+ cycles to 80% |
| Continuous output | 1,800W |
| Surge output | 3,600W |
| Inverter type | Pure sine wave |
| AC outputs | 3 outlets, 1,800W total |
| USB-C | 2 x 100W |
| USB-A | 1 x 15W, 1 x 18W |
| DC5521 | 2 x 60W |
| 12V car socket | 1 x 120W |
| AC charging input | Up to 700W, about 1.5 hours to full |
| Solar input | Up to 800W, about 1.6 hours to full |
| Pass-through charging | Yes |
| UPS switchover | 0.01 seconds |
| Protection | 12-layer BMS, UL94V-0 fire-resistant casing |
| App control | WiFi and Bluetooth |
| Weight | 15.5kg |
| Dimensions | 390 x 230 x 254mm |
| Warranty | 5 years |

Output and capacity are two different things
This is the distinction that decides whether you're happy with it. Output is 1,800W: that's what you can run at once, and it's enough for a microwave, a kettle or a power tool. Capacity is 1,024Wh: that's how long, and it's a weekend rather than a week. So this is the station for someone who needs to run real appliances occasionally, not someone who needs to run small things for a very long time. If you want days of runtime, you want more Wh.
Read the AC outlet figure properly
There are three AC outlets and 1,800W total across them, not 1,800W each. That's how every power station works, and it matters when you're planning: a 1,000W kettle and an 800W toaster together will sit right on the limit no matter which sockets you use them in. Add up everything running at once, keep it under 1,800W, and let the 3,600W surge handle the moment a motor kicks in.
Charging it faster than you empty it
700W of AC input gets it from flat to full in about an hour and a half. 800W of solar does it in about 1.6 hours of good sun. You can run both together for a faster top-up, and pass-through charging means it'll charge while it's powering your gear. On a trip that changes the maths: with decent panels this refills between uses rather than steadily draining across the week.
What 0.01 second switchover is for
Wire your fridge, modem or work computer through it, and when the street power drops the station takes over in a hundredth of a second. Nothing reboots, nothing loses what you had open. If your area loses power in every decent storm, that alone is worth having, and it's why a lot of stations bought for camping end up living beside the desk.
Is this the right size for you?
Buy it if you want serious output in something you can carry one-handed, for camping, remote work or covering the essentials in a blackout. It's the wrong pick if you want multiple days off-grid without solar, where a 2,000Wh station is what you're after. Not sure where you sit? Try the Power Station Finder, or call the store on 03 7056 6732 and we'll size it against your gear.
What's Included
- OSCAL PowerMax 1800SE
- AC charging cable
- Car charging cable
- User manual and warranty card
- 5-year warranty
- 100 Day Free Returns
What's Not Included
- Solar charging cable
- Solar panels
- A carry bag or cover
The mains and car charging cables come in the box. A solar lead isn't included, so if you're planning to use the 800W solar input, add the right cable for your panels: see the solar panel range.
Not Sure Which Portable Power Station Suits You?
The PowerMax 1800SE suits you if you want 1,800W of output in something light enough to carry properly, for a weekend away or backing up the essentials at home. It's the wrong pick if you need days of runtime without solar, where a bigger battery matters more than a bigger inverter. It carries a 5-year OSCAL warranty and 100 Day Free Returns. Not sure what size you need? Try the Power Station Finder, or call the store on 03 7056 6732 and we'll work it out with you.
