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    Rectifier Huawei R4850G2 48V 42~58V 3000w

    That makes sense ... thanks! For clarity, is the diode you circled D310 on the schematic? The diode doesn't look too hard to remove with a hot air gun assuming the module is not too hard to access. However, would removing the diode cause DC-DC converter output disruption in some situations?
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    Rectifier Huawei R4850G2 48V 42~58V 3000w

    Thanks. For temporary testing, I had only Kapton tape on the bottom covering contact "6" so the pre-charge contacts on the top remain accessible. The result is that the in-rush spark appears to be less when connecting to battery without first powering on the R4850g2 *and* the output does not...
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    Rectifier Huawei R4850G2 48V 42~58V 3000w

    Does the contact "6" control output enable/disable?
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    Rectifier Huawei R4850G2 48V 42~58V 3000w

    That seems different from my experience. I see a pretty big spark that suggests a much higher in-rush current than 17A. Perhaps it's because I added the Kapton tape mod (https://endless-sphere.com/forums/viewtopic.php?f=14&t=86038&start=175#p1723367) provided by OhmSchool? I would like to...
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    Rectifier Huawei R4850G2 48V 42~58V 3000w

    Thank you. That's great to know. Is there any special charging procedure for parallel setup? I have been using a single unit with the edge card adapter and it seems I have to power on the unit before connecting to the battery (LiFePO4) to avoid in-rush spark. Is this typical for you? I am...
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    Rectifier Huawei R4850G2 48V 42~58V 3000w

    Thanks for the solution. It worked as described but I am wondering if it disables the pre-charge function?
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    Rectifier Huawei R4850G2 48V 42~58V 3000w

    Thanks, that's good to know. Do you run them in parallel?
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    Rectifier Huawei R4850G2 48V 42~58V 3000w

    Thanks for sharing the test results. Were you able to figure out the the high temp issue? It doesn't seem practical to charge with 70C temp. I don't see the such high temp using only one charger so I wonder if the parallel setup is causing the issue. How do you physically parallel the...
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    HP ESP120 48V (51.4V) 57A 3KW Server Supply Thread

    It's old thread but I am having same issue. Is your PSU still working after it recovered? Any idea why it started working again? I don't understand how applying 220VDC would fix the issue.
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