Review of 600W Step Down Buck Converter CC CV SZ8025CCCV current, power, ripple and battery charge

Published at : 23 Dec 2025

In this video we test the 600W SZ8025CCCV buck converter. We test the input with 75V, 60V, 50V, 40V, 30V, 20V and 12V and the output with the all 50V, 40V, 30V, 20V, 12V and 5V with 5A, 10A, 20A, and 25A. We measure the ripples in every step. We look at thermal image. We will also using the Constant current features, charger LiFePo4 battery with 10A charge.

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*** Purchase 600W buck Converter ***
AliExpress https://s.click.aliexpress.com/e/_DDkm7lx
eBay: https://ebay.us/cKMeit
Amazon USA: https://amzn.to/41vKMZZ
Amazon Canada: https://amzn.to/3ZxrUaB
Amazon Europe: https://amzn.to/4g7cwIW

*** Purchas N20-Battery charger from ***
AliExpress (caution, slightly different): https://s.click.aliexpress.com/e/_Dl952P5 or
Amazon USA: https://amzn.to/4bxWDJj
Amazon Canada: https://amzn.to/4bzjc0f
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Amazon Germany: https://amzn.to/3wI6XiO
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Amazon Italy: https://amzn.to/4aJUdpS

**** WULILLS 12V, 24V 100Ah, 200Ah LiFePO4 batteries ***
https://s.click.aliexpress.com/e/_Dmc17NH

*** 100Ah LiFePO4 Batteries ****
https://s.click.aliexpress.com/e/_DdKO0QP
***** 18650 3000mAh Li-Ion Batteries ****
https://s.click.aliexpress.com/e/_DCVlQPp

*** Thermal Camera with iPhone and Android Used ***
Amazon Canada: https://amzn.to/3oyCdI7
Amazon USA: https://amzn.to/3c6hd72
Amazon (all Europe): https://amzn.to/3cQcm9n
Amazon Germany: https://amzn.to/3mu5diq
Amazon France: https://amzn.to/3jB7aYe

Power Supply I use:
DC 30V 60A Power supply: https://s.click.aliexpress.com/e/_98Ah5c
DC 60V 30A Power supply: https://s.click.aliexpress.com/e/_APyPJ0

Jump to different chapters of this video
00:00 Introduction
0:47 Module explained
7:11 Min. Max voltage
10:23 Test input 75V Out: 50V
12:13 Ripple voltage
13:01 Test input 75V Out: 40V
14:35 Test input 75V Out: 30V
17:19 Test input 75V Out:20V
18:58 Test input 75V Out:12V
20:23 Test input 60V Out: 50V
21:38 Test input 60V Out: 40V
22:36 Test input 60V Out: 30V
23:58 Test input 60V Out: 20V
25:11 Test input 60V Out: 12V
26:32 Test input 50V Out: 40V
27:30 Test input 50V Out:30V
28:58 Test input 50V Out:20V
30:01 Test input 50V Out:12V
31:05 Test input 40V Out:30V
31:16 Test input 40V Out:20V
33:14 Test input 40V Out:12V
33:55 Test input 30V Out:20V
33:58 Test input 30V Out:12V
37:03 Test input 20V Out:12V
38:21 Test input 20V Out:5V
39:27 Test input 12V Out:5V
40:33 Setting Current limit
42:57 Charging 4 cell LiFePO4 battery
48:50 Conclusion Remarks

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