• ayunatsume@alien.topBEnglish
    1·
    1 year ago

    I also Like DIY but at this time and Age, getting a 30W type C USB-PD charger, 30W Type C USB-PD powerbank, and a type C 12V activator/adapter woukd be My way to do it. Easier to replace by buying an over-the-counter replacement. That way I can also instruct someone else to buy and replace stuff Without me. It gets tiring to fix things yourself because people dont Even recognize basic electronics. And I can use a 15V type c adapter or 5V for other Network equipment Like an Asus router or a low-power tplink switch.

    Another way would be a fast enough charger, to a powerbank that can do passthru, and a dual-head 5-to-12V2A adapter.

    But still pretty cool. I remember Building a powerbank Full of AAs and a Couple of LM7805 to give 5V2A to My PSP. Good times.

  • will4111@alien.topBEnglish
    1·
    1 year ago

    No way is this working as an ups. It may work as a back up for voltage drop, an ups works as a sure protector, monitors incoming voltage, power conditioner and battery back up. 2 12v 7ah is barely enough for a few devices. Most take 4 to handle the wattage. Be safe.

  • The_camperdave@alien.topBEnglish
    1·
    1 year ago

    Finally made an UPS for my both Router and ONU. Now I’m enjoying internet without interruptions.

    Inspiring job. Well done. My mind is blown. Until now, I’ve never considered making my own UPS.

    Something I’m not quite understanding: how does the power get out to the equipment that the UPS is powering? Did you hack together some barrel connector to barrel connector cords; eliminating the need for the router and the ONU’s wall warts?

    • Harenraj56@alien.topOPBEnglish
      1·
      1 year ago

      Circuit is very simple,you can easily build it . If you want I can send you the tutorial link

  • DJojnik@alien.topBEnglish
    1·
    1 year ago

    Power outages doesn’t effect the node or central connection for the area ?

    • Harenraj56@alien.topOPBEnglish
      1·
      1 year ago

      Node or central connection is not in our area. Grid power different and they also have inverter for the system.

  • chris480@alien.topBEnglish
    1·
    1 year ago

    Which part of this is ups circuit? Does it switch over to battery, or load sharing?

    • Harenraj56@alien.topOPBEnglish
      1·
      1 year ago

      Instant switch between battery and grid power because of 1N5822 Schottky diode. Circuit is very simple. Main 15v dc (positive) with 1n5822 connected directly to output switch. 15v dc connected to xl4015 board red one. Xl4015 connected to bms input output points. BMS’s extra input output connected to XL6019 boost converter. Xl6019 output with 1N5822 diode connected with switch n output. I recommend adding a extra switch between XL4015 output with bms connection .

  • tauntingbob@alien.topBEnglish
    1·
    1 year ago

    Does it have a low voltage disconnect? Because it’s not good for batteries to be pulled too low.

    I got my DC UPS from AliExpress for not much, but it’s interesting to see something handmade.

    • Giannis_Dor@alien.topBEnglish
      1·
      1 year ago

      it’s does have a low voltage disconnect cause it’s the BMS job to protect the battery and circuit

  • topgun966@alien.topBEnglish
    1·
    1 year ago

    I mean, good thought. But you couldn’t pay me enough to put this in my home. Former electrical engineer a lifetime ago, this is not safe. At all. A plastic, ungrounded box. You did a good job on the shrink-wrapping, you still have a lot of exposed connections. 15v2a isn’t that high, but still a short to ground or a Li-ion battery run off, you’re going to have a very bad day.

    • what-the-puck@alien.topBEnglish
      1·
      1 year ago

      I would think a grounded box would be much less safe here. In plastic if a wire comes loose there are no repercussions