OUPES

1800

★ 4.4 · LiFePO4 · Released 2023
$799
Check Price on Amazon Official OUPES site
OUPES 1800
Capacity
1.5 kWh
Output
1,800W
Solar
500W
Weight
17kg
Value
$0.54/Wh

SunSee Take

The OUPES 1800 delivers 1.5 kWh of LiFePO4 storage with 1800W continuous output. At $0.54/Wh it sits in the competitive tier. With 3,500 rated cycles, expect 9+ years of daily use. Suitable for RV, van, or garage storage. Portability index: 88 Wh/kg.

Pros

  • +1800W at great price
  • +LiFePO4
  • +UPS function

Cons

  • −Heavier than competitors

Best For

Home Backup RV & Van Life Outdoor Work

Full Specifications

Last verified: 2026-07
Battery Capacity 1,488 Wh
Battery Chemistry LiFePO4
AC Output (Continuous) 1,800W
AC Output (Surge/Peak) 3,600W
Max Solar Input 500W
Weight 17 kg (37.5 lbs)
Cycle Life 3,500 cycles to 80%
AC Charge Time (0→100%) 1.5h
Price per Wh $0.54
Portability (Wh/kg) 88 Wh/kg
OUPES 1800
1.5 kWh · 1800W · LiFePO4
Check Price → Official OUPES site →

How long will the 1800 run common devices?

With 1.5 kWh usable, here's roughly what this covers. See full runtime tables:

Refrigerator CPAP Space Heater Starlink All appliances →

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Specifications sourced from OUPES's official product page. MSRP as of 2026-07. Actual prices may vary by retailer and region. SunSee is an independent platform and is not affiliated with OUPES.