12V DC Power Bank | Mini-UPS 7800mAh - Backup Battery $79.20 (20% off) + Delivery ($0 with $500 Order) @ dwelligence

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AssociatedMadTechMan on 24/04/2025 - 06:29 dwelligence.com.au (377 clicks)
Last edited 24/04/2025 - 10:31 by 1 other user

UPS:20

20% off Konnected Alarm Backup Battery - 12V DC Power Bank | Mini-UPS 7800mAh Li-ion

Expires 30/04/2025

Keep everything running during a power failure with this mini-UPS 12V DC power bank made especially for Konnected. This 7800mAh Li-ion battery can power your entire Konnected system for up to 14 hours! Plus it can run many other 12V devices.

This device plugs in to your 12V power adapter and automatically and instantaneously switches over to battery power if the household power fails.

It's also suitable for backup power for a WiFi router, cable modem, or any 12V DC consumer electronic device.

⚡12V Output: max. current 2.5A (sustained)

⚡5V USB Output: max. current 3A (short bursts)

⚡12V Input: ideal for 2-2.5A 12V power adapters

⚡Overcurrent safety protection

⚡Designed for always-on devices

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dwelligence

• 

  YasimKudomi Pape on 24/04/2025 - 06:32

  -1

  Can it start up a car?

  • 

    jimojr on 24/04/2025 - 07:02

    +2

    Not enough current to crank a car engine.

    • 

      bio on 24/04/2025 - 11:48

      100 of these in parallel?

• 

  beigehornet on 24/04/2025 - 07:44

  So a battery bank with Barrel jacks. Cool.

• 

  JakDac on 24/04/2025 - 09:17

  Run a camping fridge ?

  • 

    krisspy on 24/04/2025 - 09:52

    +1

    Not enough amps

• 

  Ozzster on 24/04/2025 - 09:22

  How is it different from a not the cheapest powerbank for around $20+ on Ali? Except limited quick charge and smaller capacity here.

  • 

    krisspy on 24/04/2025 - 09:54

    Link to a $20 powerbank with 12v dc output?

    • 

      chyawala on 24/04/2025 - 14:01

      I believe most powerbanks with QC or USB PD can accept an adaptor cable that will instruct it to output 12V. These are cheap cables, often with small male barrel jack.

    • 

      MasterScythe on 24/04/2025 - 14:16

      +1

      https://vi.aliexpress.com/item/1005007618287877.html
      $36, not $20 though.
      There are cheaper, but they tend to drop from the $3X price range to $1X price range, with BYO batteries.

      Otherwise, any USB-PD enabled powerbank will do it with a 12v programmed cable.

      • 

        Ozzster on 24/04/2025 - 14:59

        12v programmed cable is easy to replace by a trigger where you can select the required voltage. Couple of dollars, little diy, and any mobile or laptop charger or powerbank becomes a source of custom 9-12-15-20V.

        • 

          MasterScythe on 24/04/2025 - 16:04

          @Ozzster: Normal powerbanks often take a moment where no power flows, switching between charging and battery, making them not ideal for a UPS.

          Not all of them though, its just very trial and error. It just means it's not 'ANY' mobile or laptop charger, but quite a few.

          • 

            Ozzster on 24/04/2025 - 18:00

            -1

            @MasterScythe: I mentioned price for a reason, good powerbanks do it better.

  • 

    at9 on 24/04/2025 - 10:15

    +1

    Most of them will lose power when swapping over to the battery for up to a second so the device willpower off which you don't want in a UPS.

    • 

      CmfhlTtU on 24/04/2025 - 22:25

      Actually, if you charge and discharge a power bank at the same time, the discharged power is taken from the batteries (as the output power can exceed the input power), which technically works as a kind of online UPS with no switching time (only at the cost of not much lithium battery life).

      • 

        Ozzster on 25/04/2025 - 22:51

        This problem is not because of the source switching, this is by design according to USB protocols. Cheap models have only one one IC chip, which resets power when a new consumer appears. To prevent that you need either two IC chips, which instantly adds big % to the cost, or design a workaround. The workaround can behave nobody knows how, but device with it is not expensive overall.