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Watt Ready product guide

OUPES Mega 1 Lite Portable Power Station (S1 Lite), 1,024Wh

Home or camping backup with laptops, where expansion is not needed

The Mega 1 Lite puts 1,024Wh of LFP storage and 2,000W continuous AC into a roughly 26.75-pound body with two 140W USB-C ports. It charges at up to 1,400W from the wall and 800W from solar through an Anderson port. Its switchover is 20 ms, it shows no expansion port, and solar adapter cables are extra.

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Published specifications

  • Manual: 1,024Wh LiFePO4 (51.2V, 20Ah); cover code OPS-S1 Lite 2000W
  • Manual: AC 2,000W, surge 4,500W, bypass 2,000W; EPS 20 ms or less
  • Manual: USB-C 140W per port; USB-A 18W per port; car socket 120W
  • Manual: AC input 1,400W max; solar 12-78V, 14A, 800W via Anderson
  • Manual: working 32-104°F; 15.1 x 9.1 x 11.6 in, about 26.75 lb
  • Page: 3,500+ cycles to 80%; 5-year warranty +1 with registration

Fit and limits

Strengths

  • Two 140W USB-C ports alongside 2,000W AC in a sub-27-pound unit
  • 1,400W wall charging and 800W solar input
  • Box contents agree across listing, manual and maker page

Caveats

  • No extra-battery port shown; capacity stays at 1,024Wh
  • Solar adapter cable not included; manual says buy separately
  • 20 ms switchover; manual says not for equipment needing 0 ms

A 1kWh, 2,000W unit that trades expansion for lighter weight

The Mega 1 Lite is OUPES's 1,024Wh lithium iron phosphate (LiFePO4) power station with a 2,000W inverter. Amazon lists the model as S1 Lite, and the OUPES manual's cover carries the matching code OPS-S1 Lite 2000W-N-V1.0 and the name Mega 1 Lite 2000W Portable Power Station. This listing is the unit alone, without a solar panel.

The manual's back-panel diagram shows only a solar/car input, an AC input and an overload protector, with no extra-battery port, and neither OUPES document mentions add-on batteries. OUPES's FAQ describes the Lite as a smaller, easier-to-carry version for buyers who do not need a large expandable system. If you may want more capacity later, this model does not show a way to add it.

What is in the box, and the solar cable you must buy

The manual's product list, the OUPES page and the Amazon bullet agree on the contents: the power station, an AC charging cable, a cigarette-lighter-to-Anderson car charging cable and the user manual. Amazon's bullet also bundles a five-year warranty into that list, which is a coverage term rather than a physical item.

The manual's solar page states plainly that adapter cables are not included and must be bought separately. Solar panels with MC4 connectors therefore need an MC4-to-Anderson adapter before they can charge the unit. Account for that part if you plan to use panels from day one.

Nine outputs, led by two 140W USB-C ports

The manual rates AC output at 100 to 120V, 2,000W continuous with a 4,500W surge, and bypass mode at 2,000W. OUPES's page lists four AC outlets, two USB-A ports at 18W each, two USB-C ports at 140W each and one car socket at 12V and 10A, which the manual rates at 120W. The page's outlet line reads NEMA 4-20R, an unusual label; check the outlet type on arrival.

For 12V loads there is only the car socket; the manual's front diagram and spec table list no barrel-style DC ports. The manual also says not to power medical equipment or precision instruments, and to switch the unit on before connecting devices and disconnect devices before switching it off.

Charging: 1,400W from the wall, 800W from solar

The manual rates AC input at 90 to 140V, 12A and 1,400W maximum, and recommends slow charging, using fast charge only when required. OUPES's page lists fast AC at 1,400W with a full charge in 46 minutes and slow AC at 700W. It also quotes 2,200W combined AC and solar input for a 34-minute charge, marked as reference data only.

Solar input is 12 to 78V with an MPPT range of 18 to 75V, 14A and 800W maximum through the Anderson port, and the manual says panel open-circuit voltage must stay below 78V. OUPES's page gives 69 minutes for a full solar charge at 800W; the listing says 70 minutes with three 240W panels. Car charging is 12 to 15V at 8A, and the manual asks you to start the car first.

EPS switchover and the limits that come with it

The manual says the EPS (emergency power supply) function is on by default, supports switchover of 20 ms or less, and needs total input and output below 2,000W. It warns not to connect equipment that requires 0 ms uninterrupted power and to test that each device works with the EPS function. The listing and page describe it as under 20 ms.

The Amazon bullet names CPAP machines as a use, and OUPES's page mentions medical devices, but the manual's own safety list says not to power medical equipment. Follow the manual and your device maker's guidance. The error table adds that AC output shuts off above 2,100VA, or above 2,100W combined AC and DC, until loads are reduced.

App, temperatures, frequency setting and warranty

The manual points to the OUPES Smart Control app, while OUPES's page names the Cleanergy app, lists 2.4GHz Wi-Fi and Bluetooth, and says the Lite supports over-the-air updates. The manual covers switching AC output between 50Hz and 60Hz. OUPES's page gives more than 3,500 cycles to 80% capacity.

The manual lists working temperature as 32 to 104°F (0 to 40°C) and storage as -4 to 140°F; the page's temperature lines are internally inconsistent, so use the manual. Weight is 26.75 lb in the manual, 26.8 lb on the page and 26.7 lb on Amazon. OUPES's page gives a five-year warranty plus one extra year after registration; the English manual pages read contain no warranty terms.

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Primary sources

  1. OUPES Mega 1 Lite product page
  2. OUPES Mega 1 Lite user manual PDF (version OPS-S1 Lite 2000W-N-V1.0)

Primary sources checked .

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