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Comparison · Power supplies

1500 W 68 V power supply or NVVV S-800-70

Two models side by side: measurements taken by the author in their reviews, and their conclusions. The better value in each row is highlighted.

In brief: Based on review measurements: In test: 1500 W 68 V power supply (1200 W vs. 657); Test current: 1500 W 68 V power supply (24.1 A vs. 11.5); Ripple: NVVV S-800-70 (500 mV vs. 3500); Efficiency: 1500 W 68 V power supply (91 % vs. 87); No load: 1500 W 68 V power supply (4.2 W vs. 6).

Model1500 W 68 V power supply1500 W 68 V power supplyРайдена · 2024Read review →NVVV S-800-70NVVV S-800-702020Read review →
Voltage, V6870
Power, W1500800
In test, W1200657
Test current, A24.111.5
Under load, V6157.13
Ripple, mV3500500
Efficiency, %9187
No load, W4.26
Review conclusionRecommendedWith reservations

Only in one review: Current 11.4 A (NVVV S-800-70); Protection 11.5 A (NVVV S-800-70); Temperature rise 230 °C (NVVV S-800-70); Weight 1600 g (1500 W 68 V power supply).

1500 W 68 V power supply: The power supply handles high power and is generally good, but it buzzes noticeably and has high ripple.

NVVV S-800-70: A decent, stable power supply, but it needs modification because of overheating resistors and a noisy fan.

Figures were taken from the review text and checked against the quoted passages. Measurement conditions differ between reviews, so read the reviews yourself before buying. Prices at the time of review.

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