Romoss PMT60 Powerbank Teardown, confirmed with LFP batteries

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  • เผยแพร่เมื่อ 29 ม.ค. 2025

ความคิดเห็น • 34

  • @filipinovines
    @filipinovines 4 หลายเดือนก่อน

    how many hours if we going to use 100w?

  • @artem.boldariev
    @artem.boldariev 6 หลายเดือนก่อน

    Thank you for confirming that it is LiFePO4! I am considering getting one to use as UPS for networking equipment.

  • @silverssonyoutube8438
    @silverssonyoutube8438 7 หลายเดือนก่อน

    I never seen batteries that big before . I thought it had 18650 inside . Do you think this is a quality product made by them ?

    • @HouseAndSolarProjects
      @HouseAndSolarProjects  7 หลายเดือนก่อน

      Yes, it is value for money, since these batteries have a life of 3000 cycle compared to 1000 cycles for LiPo one's.

  • @wingcommanderbob8268
    @wingcommanderbob8268 17 วันที่ผ่านมา

    Looks like they have a new version (PMT75) with full 140W output and slightly higher capacity

  • @seffes5994
    @seffes5994 7 หลายเดือนก่อน +1

    Подскажите, какое количество зелёных аккумуляторов внутри? 2 штуки или 4?

  • @drenortz
    @drenortz 5 หลายเดือนก่อน +2

    With its sub $100 price here in my country, it is an excellent purchase considering that it uses LifePO4 batteries. Even better than the Anker 548 which is only limited to 65W max output and double the price. Thanks for this video!

    • @JheiUnciano
      @JheiUnciano 2 หลายเดือนก่อน

      got it for $51 from sale price

    • @WhiteShook
      @WhiteShook 2 หลายเดือนก่อน

      It is also limited to 65w

    • @drenortz
      @drenortz 2 หลายเดือนก่อน

      @@WhiteShook I've seen reviews testing the pd type-c port and they get 100W output

  • @UncleSKO
    @UncleSKO 6 หลายเดือนก่อน +1

    Great job. 👍🏻 Thanks!

  • @JoATTech
    @JoATTech หลายเดือนก่อน

    Have you managed to assemble it back? :D
    Thanks for the investigation.

  • @UncleSKO
    @UncleSKO 3 หลายเดือนก่อน

    Your instructions made it much easier for me to disassemble my power bank. Thank you. Unfortunately, my pmt60 broke down after a month and a half of operation. The upper board had a short circuit between b+ and b--. I haven't checked all the elements yet. It is difficult to do this without a scheme. If anyone has a schematic diagram, please share. Found three shorted MOSFETs ETBC015H30. But I don't know what to replace them with, because the marking on them is probably some kind of internal one from the manufacturer. It is impossible to find the datasheet and I still don't know what to put in their place. Other MOSFETs that work as a driver also have a marking G3056 for which I did not find any datasheet.

    • @HouseAndSolarProjects
      @HouseAndSolarProjects  3 หลายเดือนก่อน +1

      Sorry to hear. In my opinion, it would be difficult to find the replacement parts. If the balancer part is still good then you can attach the 140w PD modules from Ali to it.

    • @UncleSKO
      @UncleSKO 2 หลายเดือนก่อน

      @@HouseAndSolarProjects I did it and repair the power bank. Two n-channel MOSFETs, which are located in the ground part of the H-bridge, failed. Unfortunately, it is impossible to find out from the marking which MOSFETs are installed there. I contacted a company representative. He refused to provide such information. I had to unsolder the working MOSFET and measure their parameters. I could not find an exact replacement. I installed MOSFETs with a slightly larger opening threshold and gate capacitance. As a result, everything works. It takes a charge of 100W, but at the output it gives only 40W and goes into protection. Most likely due to a skew in the bridge. There was an idea to replace all the MOSFETs with identical ones, but they are very difficult to unsolder. Soldered with refractory lead-free solder. And the power of 20-25W in my scenario of using it as a UPS is enough for me. By the way. The manufacturer forgot to remove the protective film from the charge indicator under the cover and it was cloudy. Now everything is OK.)
      @HouseAndSolarProjects Thanks again for the video. It really helped to disassemble it carefully and not break anything. Now the power bank looks like new and works. I'm happy and saved a lot of money.))

  • @jokerbest3020
    @jokerbest3020 6 หลายเดือนก่อน

    The manufacturer claims that USB-C supports charging at 100W. I watched other videos testing this device, reviewers confirmed the presence of 100W of power at the connector. Why do you claim the opposite? I'd like to hear your opinion, thank you.

    • @HouseAndSolarProjects
      @HouseAndSolarProjects  6 หลายเดือนก่อน +2

      Hmm, I said that the chipset supports upto 140W, here it supports 100W. The manufacturer specifications are correct.

    • @jokerbest3020
      @jokerbest3020 6 หลายเดือนก่อน +1

      @@HouseAndSolarProjects Sorry, I misunderstood, my mistake. After watching the video to the end, everything fell into place. I wonder if it is possible to get 140W with USB-K if the chip supports it. If yes, then how? It would be interesting to hear your opinion. Thanks for the review, only you took it apart and showed the batteries.

    • @jokerbest3020
      @jokerbest3020 6 หลายเดือนก่อน +1

      @@HouseAndSolarProjects so do you know? Is it possible to get 140W from this power bank? from USB-C connector

    • @HouseAndSolarProjects
      @HouseAndSolarProjects  3 หลายเดือนก่อน

      ​@@jokerbest3020unfortunately no, I do not have acces to tools required to do it.

  • @mennopieters3512
    @mennopieters3512 7 หลายเดือนก่อน

    Thnx for the teardown hope it still works maybe you can try to make it somewhat more waterproof then it was with rubber seals also can see now why they cant do 100 watt over the usb a porta

    • @HouseAndSolarProjects
      @HouseAndSolarProjects  7 หลายเดือนก่อน

      Yes, it still works. The Chipset does not supports the 100w USB A Prtotocols

  • @Daorson91
    @Daorson91 7 หลายเดือนก่อน

    Thanks! Would you recommend this product?

    • @HouseAndSolarProjects
      @HouseAndSolarProjects  7 หลายเดือนก่อน +2

      Yes, definitely

    • @Daorson91
      @Daorson91 7 หลายเดือนก่อน

      Thanks! Ordered both the 40 and 60mah versions. Keep up the good work.​@@HouseAndSolarProjects

  • @jokerbest3020
    @jokerbest3020 6 หลายเดือนก่อน +1

    Did I understand correctly that the 100 W limitation is due to the batteries? It is impossible to get more amperes because of the batteries installed in this power bank and everything comes down to this? Is it possible to get 140 W with this board if there were other batteries that allow you to get more amperes at the output? Thank you. You are the only one who took it apart on all of TH-cam.

    • @HouseAndSolarProjects
      @HouseAndSolarProjects  6 หลายเดือนก่อน +1

      No, it not only due to the number of batteries. The Powerbank in my opinion utilises the Chip in 100W configuration. Unfortunately i don't have access to the datasheet.

    • @Роги-п4у
      @Роги-п4у 5 หลายเดือนก่อน

      Когда заряд паурбана показывает 30 процентов то выдавать он начинает 65 ватт? это правда?​@@HouseAndSolarProjects

    • @Роги-п4у
      @Роги-п4у 5 หลายเดือนก่อน

      ​@@HouseAndSolarProjectsкогда 30 процентов заряда на паурбанке,то он заряжает в 65 ватт?

    • @HouseAndSolarProjects
      @HouseAndSolarProjects  3 หลายเดือนก่อน

      ​@@Роги-п4у yes, it charges at 65w till 0%