A light, simple 1kWh LiFePO4 station for campers and short outages who value portability over outlet count and expansion.
Amazon $499 Jackery $499The Jackery Explorer 1000 v2 and the OUPES Mega 1 are evenly matched, rated 4.4 and 4.3. The Jackery Explorer 1000 v2 leads on tested capacity and portability. The OUPES Mega 1 wins on AC output, solar input and features. The OUPES Mega 1 costs $52.51 less ($446.49 vs $499).
A strong 1kWh home-backup station with a big inverter and room to expand, often sold well below list price on Amazon.
Amazon $446.49Prices were last checked October 27, 2026 and are subject to change; the price and availability shown by the retailer at the time of purchase apply.
Which should you buy?
- Choose the Jackery Explorer 1000 v2 for tested capacity (86% of rated capacity delivered (2 tests) vs 79% of rated capacity delivered (1 test)) and portability (99 Wh per kg (23.8 lb (10.8 kg)) vs 81 Wh per kg (27.8 lb (12.6 kg))).
- Choose the OUPES Mega 1 for AC output (2,000 W continuous AC vs 1,500 W continuous AC), solar input (800 W max solar input vs 400 W max solar input) and features (UPS (20 ms), expandable, 100 W USB-C, app vs UPS (20 ms), 100 W USB-C, app).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every mid-size portable power station; a clear win is highlighted. How we rank explains each one.
| Factor weight | Jackery Explorer 1000 v2 | OUPES Mega 1 |
|---|---|---|
| Overall rating | 4.4/5 | 4.3/5 |
| Value 25% | 84 $0.47 per rated Wh | 89 $0.44 per rated Wh |
| Tested capacity 15% | 74 86% of rated capacity delivered (2 tests) | 41 79% of rated capacity delivered (1 test) |
| Battery life 15% | 100 LiFePO4, 4,000 cycles, 5-year warranty | 96 LiFePO4, 3,500 cycles, 5-year warranty |
| AC output 15% | 70 1,500 W continuous AC | 88 2,000 W continuous AC |
| Charging speed 10% | 95 0-100% on AC in 1 h | 96 0-100% on AC in 58 min |
| Portability 10% | 98 99 Wh per kg (23.8 lb (10.8 kg)) | 66 81 Wh per kg (27.8 lb (12.6 kg)) |
| Solar input 5% | 26 400 W max solar input | 74 800 W max solar input |
| Features 5% | 75 UPS (20 ms), 100 W USB-C, app | 100 UPS (20 ms), expandable, 100 W USB-C, app |
Independent capacity tests
Jackery Explorer 1000 v2
| Tested by | Usable AC energy | Of rated | Conditions |
|---|---|---|---|
| OutdoorGearLab | 910 Wh | 85% | Light-bar load bank at roughly 80% of rated AC output, 100% to shutdown. Measured charging rate 563 Wh/hr (about 1.6 hr full recharge). |
| The Solar Lab | - | 87.5% | 1,479W load ran 37.5 minutes versus 43 minutes expected from rated capacity. |
OUPES Mega 1
| Tested by | Usable AC energy | Of rated | Conditions |
|---|---|---|---|
| The Solar Lab | - | 79% | 1,779W appliance load ran for 27 minutes. |
Specifications
| Jackery Explorer 1000 v2 | OUPES Mega 1 | |
|---|---|---|
| Battery | ||
| Rated capacity | 1,070 Wh | 1,024 Wh |
| Tested usable capacity | 923 Wh (86%) | 809 Wh (79%) |
| Chemistry | LiFePO4 | LiFePO4 |
| Cycle life | 4,000 to 70%+ | 3,500 to 80% |
| Expandable | No | Yes, up to 5,120 Wh |
| Output | ||
| AC output | 1,500 W (3,000 W surge) | 2,000 W (4,500 W surge) |
| AC outlets | 3 total | 4 total |
| 120V 20A outlets (NEMA 5-20R) | 3 | 4 |
| USB-C ports | 2 (up to 100 W each) | 2 (up to 100 W each) |
| USB-A ports | 1 | 4 |
| 12 V car outlet | Yes | Yes |
| DC5521 ports | 0 | 2 |
| UPS / pass-through | Yes (20 ms switchover) | Yes (20 ms switchover) |
| Charging | ||
| AC charging | - | 1,400 W |
| Full AC charge time | 1 h (60 min with Emergency Super Charge enabled in the app; 1.58 hr standard) | 58 min (OUPES: full in 36 min with AC plus solar (2200W). The Amazon listing says 36 min to 80%. AC-only time not published) |
| Max solar input | 400 W | 800 W |
| Solar input voltage | 12-60V (2 x DC 8mm inputs) | 12-78V (MPPT 18-75V, 14A) |
| Car charging | 96 W | 96 W |
| Build | ||
| Weight | 23.8 lb (10.8 kg) | 27.8 lb (12.6 kg) |
| Dimensions | 12.87 x 8.82 x 9.72 in | 15.1 x 9.1 x 11.6 in |
| App | Jackery app | OUPES app (Wi-Fi/Bluetooth) |
| Warranty | 5 years | 5 years |
| Released | 2024-08 | 2025-07 |
