Which has better price per wh: OUPES 2400 or Generic E500LFP?

OUPES 2400 has better value at $0.3132/Wh compared to Generic E500LFP at $0.3281/Wh — a 5% difference.

OUPES 2400 vs Generic E500LFP — Which Has Better Price Per Wh? (April 2026)

✓ Better Value

OUPES 2400

$699.0

$0.3132/Wh — price per watt-hour

2232Wh LiFePO4 2400W output

Buy on Amazon → Full specs

Generic E500LFP

$189.0

$0.3281/Wh — price per watt-hour

576Wh LiFePO4 600W output

Buy on Amazon → Full specs

OUPES 2400	Spec	Generic E500LFP
2232Wh	Capacity	576Wh
$699.0	Price	$189.0
$0.3132/Wh	$/Wh	$0.3281/Wh
2400W	AC Output	600W
LiFePO4	Battery	LiFePO4
★ 4.4	Rating	★ 4.3
— lbs	Weight	— lbs
— yr	Warranty	— yr

Which Should You Buy?

OUPES 2400 wins on price per watt-hour by 5% — $0.3132/Wh vs $0.3281/Wh. The capacity difference of 1656Wh may affect your decision if you have specific runtime requirements.

Choose OUPES 2400 if you want better value per watt-hour. At $699.0 for 2232Wh, it costs less per unit of stored energy.

Choose Generic E500LFP if you prefer the 576Wh capacity. The 576Wh provides approximately 7.5 hours of laptop runtime vs 29.2 hours.

Not sure what capacity you actually need? Use our size calculator to find out. To see which station runs your specific devices longest, try the runtime calculator.

FAQ

Is the 5% $/Wh difference significant?

The 5% difference is relatively small. In this case, other factors like warranty, brand support, and specific features may matter more than $/Wh alone.

Do both have LiFePO4 batteries?

OUPES 2400: LiFePO4. Generic E500LFP: LiFePO4. LiFePO4 batteries last 2,000-4,000 cycles vs 300-800 for standard Li-ion — an important consideration for long-term value. See our full comparison.

All stations by $/Wh → Runtime calculator →